Mckissick Oilfield Servicing Equipment

®
McKissick
Oilfield Servicing
Equipment
70 & 80 Series
Tubing Blocks
.. Maintenance Requirements
. Disassembly Instructions
. Inspection Requirements
Maintenance Alerts
Crosby Products Distributed by:

Table of Contents
General Cautions and Warnings . . . . . . . . . . . . . . . . 1 McKissick® 80 Series Tubing Blocks

Operation Information . . . . . . . . . . . . . . . . . . . . . . . . 4 Disassembly Instructions . . . . . . . . . . . . . . . . . . . .17
Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . 5 Assembly Instructions . . . . . . . . . . . . . . . . . . . . . .18
McKissick® 70 Series Tubing Blocks Inspection Requirements . . . . . . . . . . . . . . . . 19 - 24
Disassembly Instructions . . . . . . . . . . . . . . . . . . 6 - 7 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 26
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . 8 Maintenance Alerts . . . . . . . . . . . . . . . . . . . . . 27 - 29
Inspection Requirements . . . . . . . . . . . . . . . . . 9 - 14 Crosby Testing Information. . . . . . . . . . . . . . . . 30 - 31
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 16
PLANTS AND FACILITIES

HEADQUARTERS and CENTRAL SALES OFFICE
P.O. Box 3128, Tulsa, OK 74101-3128
Web: thecrosbygroup.com
e-mail: crosbygroup@thecrosbygroup.com
OKLAHOMA / McKISSICK® CANADA / CROSBY CANADA BELGIUM / N.V.CROSBY EUROPE
PRODUCTS 145 Heart Lake Road Leuvensebaan 51
2857 Dawson Road Brampton, Ontario 2580 Putte
Tulsa, OK 74110-5000 Canada L6W 3K3 (Mechelen) Belgium
Sales Office: (905) 451-9261 Sales Office: 32-15-75-71-25
TEXAS / LEBUS® MFG. FAX (877) 260-5106 FAX:32-15-75-37-64
900 Fisher Road www.crosby.ca sales@crosbyeu.com
Longview, TX 75604-4709 sales@crosby.ca
ARKANSAS / NATIONAL SWAGE

2511 W. Main Street
Jacksonville, AR 72076-4213
WAREHOUSE FACILITIES
TEXAS (Dallas) ILLINOIS (Chicago) UNITED KINGDOM
2101 Exchange Drive 16868 S. Lathrop Ave. Crosby Europe (UK) Ltd.
Arlington, TX 76011-7823 Harvey, IL 60426 Unit10
Fall Bank Industrial Estate
GEORGIA WASHINGTON (Seattle) Dodworth / Barnsley
5260-E Westgate Drive 2505 Frank Albert Road South Yorkshire S75 3LS
Atlanta, GA 30336 Suite B-121
Fife, Washington 98424 FRANCE
PENNSYLVANIA Crosby Europe France SARL
1505 S. 19th St. Parc EVOLIC - Bât. C - Porte 304
Harrisburg, PA 17104 21, Rue du Petit Albi
95800 Cergy St. Christophe
CALIFORNIA (Los Angeles)
5980 Boxford Ave.
Commerce, CA 90040
thecrosbygroup.com
Crosby Products are available from leading Sling Fabrication Houses and Industrial Distributors
Copyright © 2006 The Crosby Group, Inc.

All Rights Reserved
General Cautions and Warnings
All products manufactured by The Crosby Group, Inc., usually computed by dividing the catalog Ultimate Load
are sold with the express understanding that the by the Working Load Limit. Generally expressed for
purchaser is thoroughly familiar with the safe and proper blocks as a ratio of 4 to 1.
use and application of the product. TACKLE BLOCK – An assembly consisting of a
Responsibility for the use and application of the products sheave(s), side plates, and generally an end fitting
rests with the user. (hook, shackle, etc.) that is used for lifting, lowering, or
Failure of the product can occur due to misapplication, applying tension.
abuse, or improper maintenance. Product failure could
allow property damage, personal injury or death.
There are numerous government and industry standards WARNING
that cover products made by Crosby. This catalog makes • Failure to read, understand and follow these
no attempt to reference all of them. We do reference the instructions may cause death or serious injury.
standards that are most frequently asked about. This equipment is not designed for and should
Ratings shown in Crosby Group literature are applicable not be used for lifting, supporting or
only to new or “in as new” condition products. transporting humans.
Load limit ratings indicate the greatest force or load a • Only trained and competent personnel should
product can carry under usual environmental conditions. install, operate, inspect and repair this
Shock loading and extraordinary conditions must be equipment.
taken into account when selecting products for use in a • Modification to upgrade, repair or otherwise
system. alter this equipment shall be authorized only by
These general instructions deal with the normal the original equipment manufacturer or
installation, operation, inspection, and maintenance qualified professional engineer.
situations encountered with the equipment described • If this block is a component in a system, the
herein. The instructions should not be interpreted to system designer will be responsible for
anticipate every possible contingency or to anticipate the passing on to the end user the information
final system, crane or configuration that uses this contained in this manual.
equipment.
Definitions
IMPORTANT!
STATIC LOAD – The load resulting from a constantly
applied force or load. For maximum safety and efficiency, tackle block systems
must be properly designed, used, and maintained. You
WORKING LOAD LIMIT – The maximum mass or force must understand the use of tackle block components in
which the product is authorized to support in general the system. These instructions provide this knowledge.
service when the pull is applied in-line, unless noted Read them carefully and completely.
otherwise, with respect to the center line of the product.
Some parts of these instructions must use technical
This term is used interchangeably with the following words and detailed explanations. NOTE: If you do not
terms: understand all words, diagrams, and definitions —
1. WLL DO NOT TRY TO USE A TACKLE BLOCK SYSTEM!
2. Rated Load Value
3. SWL For further assistance, call:
4. Safe Working Load In U.S.A. - Crosby Engineered Products Group at 1-800-
5. Resultant Safe Working Load 777-1555.
In CANADA - Crosby Canada (905) 451-9261.
WORKING LOAD – The maximum mass or force which In EUROPE - N.V. Crosby Europe 011-32-15-757125.
the product is authorized to support in a particular As you read instructions, pay particular attention to
service. safety information in bold print.
PROOF LOAD – The average force applied in the KEEP INSTRUCTIONS FOR FUTURE USE – DO NOT
performance of a proof test; the average force to which a THROW AWAY!
product may be subjected before deformation occurs.
ULTIMATE LOAD – The average load or force at which
the product fails, or no longer supports the load.
SHOCK LOAD – A force that results from the rapid
application of a force (such as impacting and/or jerking)
or rapid movement of a static load. A shock load
significantly adds to the static load.
DESIGN (SAFETY) FACTOR – An industry term
denoting a product’s theoretical reserve capability;
Copyright © 2006 The Crosby Group, Inc. 1

All Rights Reserved
Oilfield Servicing Equipment
McKissick® Oilfield Servicing Equipment
Series 70 Streamlux Tubing Blocks
with Spring Loaded Duplex Hook
• Spring loaded duplex hook assuring ample travel for • Convenient rod hook clevis available as shown on
efficient tubing operations. No load carrying Figure 72A.
threads. • Completely streamlined, no projections.
• Exclusive E-Z* opening guards, no bolts to pull out • Alloy steel flame hardened sheaves grooved for
and lose. Feature gives fastest possible exposure of proper wire line size.
sheave cluster for quick reeving.
• Threaded hook parts precision machined and
• Extremely short overall length, extra weight, and individually fitted for maximum safety.
excellent balance for fast non-wobbling falls.
• Hook assembly interchangeable with the Series 80
• Extra large sealed sheave bearing diameters for fully Streamlux Tubing Blocks.
rated capacities.
• All blocks available with additional cheek weights.
• Tapered roller thrust bearing in hook.
• Duplex hook for easy elevator operation, locks in six
or eight positions.
Fig. 72A Fig. 73

With Rod Hook Clevis *patented
Weight Dimensions
Recommended API (lbs.) Center (in.)
Sheave No. Wire Rope Working Pin
Fig. Size of Size Load Diameter D D
No. (in.) Sheaves (in.) (tons) Standard Weighted (in.) A B C Std. Wtd.
72 14 2 5/8 - 3/4 25 540 740 2-3/4 46-1/2 43 16 8-1/4 12-1/4
73 14 3 5/8 - 3/4 35 720 920 2-3/4 50-1/4 46-3/8 16 11-1/8 15-1/8
72 17 2 3/4 - 7/8 40 1120 1440 3-1/2 57-7/8 54 19 10-7/16 14-7/16
73 17 3 3/4 - 7/8 50 1400 1720 3-1/2 60-5/8 56-1/8 19 14 18
72 20 2 7/8 - 1 50 1460 1935 4 64-3/8 59-3/8 23 11-7/8 15-7/8
73 20 3 7/8 - 1 75 1950 2425 4 66-5/8 61-5/8 23 16-1/8 20-1/8
72 24 2 1 — 1-1/8 75 2160 2820 4-1/4 71-1/4 66-1/4 27 11-1/4 15-1/4
73 24 3 1 — 1-1/8 100 2750 3410 4-1/4 73-1/2 67-5/8 27 15-1/4 19-1/4
73 30 3 1-1/4 150 3950 5050 5-5/8 86-3/4 78-1/4 33 16-1/16 20-1/8
74 30 4 1-1/4 150 4400 5500 5-5/8 86-3/4 78-1/4 33 20-1/4 24-1/4
2 Copyright © 2006 The Crosby Group, Inc.

All Rights Reserved
Oilfield Servicing Equipment
McKissick® Oilfield Servicing Equipment
Series 80 Streamlux Tubing Blocks
with Locking Duplex Swivel Hook
• Exclusive E-Z* opening guards, no bolts to pull out • Completely streamlined, no projections.
and lose. Feature gives fastest possible exposure of • Alloy flame hardened sheaves grooved for proper
sheave cluster for quick reeving. wire line size.
• Extremely short overall length, extra weight, and • Threaded hook parts precision machined and
excellent balance for fast non-wobbling falls. individually fitted for maximum safety.
• Extra large sealed sheave bearing diameters for fully • Hook assembly interchangeable with the Series 70
rated capacities. Streamlux Tubing Blocks.
• Tapered roller thrust bearing in hook. • All blocks available with additional cheek weights.
• Duplex hook for easy elevator operation, locks in six
or eight positions.
• Convenient rod hook clevis available as shown on
Figure 82A.
Fig. 82A Fig. 83 *patented

With Rod Hook Clevis
Weight Dimensions
API (lbs.) Center (in.)
Sheave No. Recommended Working Pin
Fig. Size of Wire Rope Size Load Diameter D D
No. (in.) Sheaves (in.) (tons) Standard Weighted (in.) A B C Std. Wtd.
82 14 2 5/8 - 3/4 25 450 635 2-3/4 34-7/16 30-13/16 16 8-1/4 12-1/4
83 14 3 5/8 - 3/4 35 600 800 2-3/4 35-1/4 31-3/8 16 11-1/8 15-1/8
82 17 2 3/4 - 7/8 40 880 1200 3-1/2 43-1/16 39-3/16 19 10-7/16 14-7/16
83 17 3 3/4 - 7/8 50 1110 1430 3-1/2 44-15/16 40-7/16 19 14 18
82 20 2 7/8 - 1 50 1150 1625 4 48-5/8 44-1/8 23 11-7/8 15-7/8
83 20 3 7/8 - 1 75 1600 2075 4 50-3/8 45-3/8 23 16-1/8 20-1/8
82 24 2 1 — 1-1/8 75 1830 2490 4-1/4 54-3/8 49-3/8 27 11-1/4 15-1/4
83 24 3 1 — 1-1/8 100 2250 2910 4-1/4 58 52-1/8 27 15-1/4 19-1/4
83 30 3 1-1/4 150 2750 3850 5-5/8 70-3/4 62-1/4 33 16-1/4 20-1/8
84 24 4 1 — 1-1/8 100 2750 3360 4-1/4 63 56-1/2 27 19-1/4 23-1/4
84 30 4 1-1/4 150 3850 5050 4-1/4 69-3/8 69-3/8 33 20-1/4 24-1/4

All Rights Reserved
Operation Information
Loads on Blocks How to Figure Line Parts
The Working Load Limit (WLL)
for Crosby Group blocks To help figure the number of parts of line to be used for a
indicates the maximum load that given load, or the line pull required for a given load, the
should be exerted on the block following ratio table is provided with examples of how to
and its connecting fitting. This use it.
total load value may be different
from the weight being lifted or
pulled by a hoisting or hauling Ratio A Ratio B Number
system. Bronze Bushed Anti-Friction of
Sheaves Bearing Sheaves Line Parts
It is necessary to determine the 0.96 0.98 1
total load being imposed
on each block in the system to 1.87 1.94 2
properly determine the rated capacity block to be used. 2.75 2.88 3
A single sheave block used to change load line direction 3.59 3.81 4
can be subjected to total loads greatly different from
4.39 4.71 5
weight being lifted or pulled.
5.19 5.60 6
5.90 6.47 7
6.60 7.32 8
Angle Factor Multipliers
7.27 8.16 9
Angle Factor Angle Factor
7.91 8.98 10
0° 2.00 100° 1.29
8.52 9.79 11
10° 1.99 110° 1.15
9.11 10.6 12
20° 1.97 120° 1.00
30° 1.03 130° .84
Total Load to be Lifted
40° 1.87 135° .76 Ratio A or B =
Single Line Pull
45° 1.84 140° .68
50° 1.81 150° .52 After calculating Ratio A or B, consult table to determine
60° 1.73 160° .35
number of parts of line.
70° 1.64 170° .17 Examples:
80° 1.53 180° .00 • To find the number of parts of line needed when
weight of load and single line pull are known, and
90° 1.41 — —
using Bronze Bushed Sheaves.
72,180 lbs. (load to be lifted) 9.02

Ratio A = =
8,000 lbs. (single line pull) (Ratio A)
Refer to ratio 9.02 in table or number nearest to it, then
check column under heading “Number of Line Parts” =
12 parts of line to be used for this load.
• To find the single line pull needed when weight of
load and number of parts of line are known, and
using anti-friction bearing sheaves.
9,290
Single Line Pull= 68,000 lbs. (load to be lifted) =
7.32 (ratio B of 8 part line) lbs.
9,290 lbs. single line pull required to lift this load on 8
parts of line.

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Preventive Maintenance
A regular preventive maintenance program should be established. Written maintenance procedures should
be provided to the personnel responsible for the maintenance.
Lubrication Requirements
Lubrication: The frequency of lubrication depends upon frequency and period of product use as well as
environmental conditions, which are contingent upon the user’s good judgment. Assuming normal product use, the
following schedule is suggested when using lithium-based grease of a medium consistency.
Sheave Bearings Hook Bearings

Tapered Roller Bearings — Every 40 hours of Anti-Friction — Every 14 days for frequent swiveling or
continuous operation or every 30 days of intermittent every 45 days for infrequent swiveling.
operation. Bronze Thrust Bushing or No Bearing — Every 16
Roller Bearings — Every 24 hours of continuos hours for frequent swiveling or every 21 days for
operation or every 14 days of intermittent operation. infrequent swiveling.
Bronze Bushings — (Not Self-Lubricated) — Every 8 Tackle Block Maintenance also depends upon proper
hours of continuous operation or every 14 days of block selection (see “Loads on Blocks” on page 4),
intermittent operation. proper reeving (see “The Reeving of Tackle Blocks” (in
Crosby General Catalog), consideration of shock loads,
side loading, and other adverse conditions.
Maintenance Requirements
Tackle Blocks must be regularly inspected, lubricated, and maintained for peak efficiency and extended usefulness.
Their proper use and maintenance is equal in importance to other mechanical equipment. The frequency of
inspection and lubrication is dependent upon frequency and periods of use, environmental conditions, and the user’s
good judgment.
Inspection: As a minimum, the following points should 6. Sheave pin nuts should be checked for proper
be considered: positioning. Pins for tapered roller bearings should
be tightened to remove all end play during sheave
1. Wear on pins or axles, rope grooves, side plates, rotation. Pins for bronze bushings and straight roller
bushing or bearings, and fittings (See Fitting bearings should have a running clearance of .031
Maintenance). Excessive wear may be a cause to inch per sheave of end play and should be adjusted
replace parts or remove block from service. accordingly.
2. Deformation in side plates, pins and axles, fitting 7. Hook or shackle to swivel case clearance is set at
attachment points, trunnions, etc. Deformation can .031 to .062 at the factory. Increased clearance can
be caused by abusive service and/or overload and result from component wear. Clearance exceeding
may be a cause to remove block from service. .18 should necessitate disassembly and further
inspection.
3. Misalignment or wobble in sheaves.
8. Deformation or corrosion of hook and nut threads.
4. Security of nuts, bolts, and other locking methods,
especially after reassembly following a tear down 9. Surface condition and deformation of hook (See
inspection. Original securing method should be Fitting Maintenance and ANSI B30.10)
used; e.g., staking set screw, cotter pin, cap screw. 10. Welded side plates for weld corrosion or weld
5. Pins retained by snap rings should be checked for cracking.
missing or loose rings. 11. Hook latch for deformation, proper fit and operation.
5
All Rights Reserved
Series 70 Disassembly Instructions
Disassembly/Assembly Instructions
for McKissick® 70 Series Tubing Blocks
On the following pages are general disassembly and

assembly instructions for all sizes of McKissick® 70
Series Tubing Blocks. The instructions outline the
necessary disassembly and assembly required for
thorough inspection, or replacement of internal parts.
There are two versions of spring retention devices that

were produced by McKissick® for the 70 Series Tubing
block. The original design uses a threaded nut (Figure 1),
and the current design uses split keeper rings that fit into
grooves at the top of the hook shank (Figure 2).
The instructions consider both methods. Disassembly

instructions consider the upper block assembly and the
hook assembly separately, after the lower bolt
assemblies are removed.
Figure 1 Figure 2

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See Page 15 - 16 for block drawing and parts list
WARNING
Disassembly
• Failure to read, understand and follow these
Remove lower bolt assembly (17) to separate the hook instructions may cause death or serious injury.
assembly from the upper block assembly. • Read and understand these instructions before
disassembly, assembly or repair of hook assembly.
Upper Block
• When releasing compression spring - KEEP BODY
1. Position upper block assembly on flat surface with CLEAR!
sheave center pin assembly (07) vertical.
2. Remove all nuts, screws and bolt assemblies (14 and
15) attached to the block top plate (01). 3. Use the existing three button head cap screws,
3. Remove center pin star nut by removing locking cap partially threaded into retainer ring, to provide at least
screw, and unthreading. 1 inch of space between retainer plate and retainer
4. Remove top side plate assembly (01). ring. Then tighten with a nut against the retainer plate
5. Remove sheave assembly (08). until the split keeper rings (qty. 2) can be removed
6. Continue alternately removing load plates and through gap between retainer plate and retainer ring.
sheaves to completely disassemble block. 4. After removing the keeper rings, begin releasing the
spring tension by turning the nut in counter- clockwise
Hook Assembly direction. (The spring is in compressed condition and
1. Secure the hook/case assembly (90) in vertical can cause injury if released quickly. To reduce risk,
position with the hook down. make sure that the threaded rod installed in hook
2. Remove the cover plate to expose the interior of the shank does not back out from the hook). When the
swivel case. spring tension is noticeably released, remove the
3. Remove spring. Refer to Section A or B at end of retainer plate, and threaded rod, then remove spring.
Disassembly instructions, depending on which 5. Use a special follower removal tool (Figure 4) to
method is used to retain spring. Then return to Step remove one half of follower. This is accomplished by
4. threading into the follower flange, and raising the
4. Lift the swivel case from the hook. follower as high as possible. Then lower
5. Remove the thrust bearing from the case. Note the approximately .25 inch and tilt out. It may require
orientation of the races of the thrust bearing for some movement side to side and up and down to
proper re-assembly. completely remove both of the follower halves. If the
6. Remove the snap ring from the hook to allow removal split follower bushing is badly worn and rotated, the
of the bonnet. follower may have to be rotated to align with the splits
of the bushings before removing.
Section A
For hooks with a threaded spring retention device
Remove nut lock device from top of hook shank. Use a
square driver in nut lock hole to unscrew the nut. The
threads are right-handed. Completely remove nut and
coil spring (31).
Section B
For hooks with split keeper ring spring retention
device
Remove the keeper retainer plate at top of hook shank.
Using the existing 1.00 UNC tapped hole in top of hook
shank, install threaded rod (thread the full length) of at Retainer Ring
Depressed To Allow Split Special Follower
least 12" long to allow controlled release of spring (See
Ring Keeper Removal Removal Tool
Figure 3).
1.Remove the keeper retainer plate at top of hook shank. Figure 3 Figure 4
2. Using the existing 1.00 UNC tapped hole in top of
hook shank, install threaded rod (thread the full
length) of at least 12" long to allow controlled release
of spring (See Figure 3).

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Series 70 Assembly Instructions
Assembly 6. Place the coil spring on the follower.
Upper Block 7. Install spring retention device. Refer to Section A or B
1. Install a star nut on one end of center pin (07). at end of Assembly instructions, depending on which
method is used to retain spring. Then return to Step
2. Install outside plate (01) on center pin and place with 8.
center pin vertical and nut on flat horizontal surface.
8. Install silicon sealant at interface between case and
3. Install one sheave assembly (08) including seals on cover plate, then install cover plate and mounting
center pin. screws.
4. Install one center plate (04). 9. Attach hook and case assembly (90) to assembled
5. Continue alternately adding sheave and center plates upper block by installing lower bolt assemblies (17),
until total block width is reached. then secure nuts with lock screws, or stake in place.
6. Install outside plate, and star nut on topside of plate. 10. Lubricate hook and sheave bearings.
After centering and tightening the star nuts on the
center pin, install nut lock screws. Note that the Section A
sheave bearings are non-adjustable type tapered For hooks with a threaded spring retention device
roller bearings that require no specific adjustment.
Therefore, to tighten the center pin, the star nuts are
to be drawn tight and locked into place. Assemble the threaded nut completely on the hook
shank to compress the coil spring.
7. Rotate block to position with sheave center pin
horizontal, and top of block up. Rotate the nut slightly to allow installation of the nut
lock device at top of the hook.
8. Install the spreader (upper casting) and upper bolt
assembly (15). Section B
9. Install both hinged guard assemblies and bolts. For hooks with split keeper ring spring retention
10. Install all remaining nuts on bolt assemblies (except device
lower bolt assembly (17), and install lock screws, or
stake in place securely.
1. Locate the retainer ring on the coil spring, and over
the hook shank. Use the existing three button head
Hook and Case Assembly (90)
cap screws, partially threaded into retainer ring, to
1. Secure the hook in vertical position with the body provide at least 1 inch of space between retainer
down, and shank portion up. plate and retainer ring. Using the existing 1.00 UNC
2. Install bonnet (23) onto hook (21) and install retaining tapped hole in top of hook shank, install threaded rod
ring (30). (threads the full length) of at least 12" long to allow
3. Install swivel case (06) onto hook shank. compression of the coil spring. Then tighten with a
4. Install hook thrust bearing (32). When being nut against the retainer plate until the split keeper
assembled, the thrust bearing must have the race rings (qty. 2) can be installed through gap between
with the large bore against the case or the hook will retainer plate and retainer ring (See Figure 3 on
not swivel properly. The small bore race must be page 7).
against the follower. The race bores should be 2. After the two keeper rings are installed in proper
measured with micrometers or calipers, as there is orientation, remove 1.00” hex nut until spring tension
only .016 inch difference between upper race, and is carried fully by keeper rings.
lower race. Note: Before re-assembly of hook into 3. Remove temporary spacers, and then secure retainer
the case, it is advisable to check the fit of the thrust plate with three button head cap screws.
bearing over the follower/bushing assembly. To
accomplish this, the follower/bushing assembly can
be clamped on the hook shank, and the thrust
bearing fit over the follower. If the thrust bearing will
not fit, then some light buffing of the inside surface of
the follower bronze bushing may be required.
5. Install follower halves (22) onto the top of the hook
thrust bearing using special follower removal tool
(Figure 4 on page 7). The followers have a close fit
around the hook and the case, so installation may
require some up and down, and side to side
movement.

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Series 70 Inspection Requirements
In accordance with API RP 8B, Recommended Practice repairs; remanufacture. Below please find the inspection
for Procedures for Inspections, Maintenance, Repair, category descriptions and recommended frequency for
and Remanufacture of hoisting Equip, it is recommended the critical load carrying components of the 684-S
that the owner or user of the equipment develop his own Traveling Block. When equipment is subjected to severe
schedule of inspections based on experience, conditions such as impact loading or low temperature
manufacturer’s recommendations, and consideration of service, a thorough inspection may be required at
one or more of the following factors: environment; load increased frequency.
cycles; regulatory requirements; operating time; testing;
INSPECTION CATEGORIES
Category I - Observation of equipment during operation for indications of inadequate performance.
Category II - Category I inspection, plus further inspection for corrosion; deformation; loose or missing components;
deterioration; proper lubrication; visible external cracks; and adjustment.
Category III - Category II inspection, plus further inspection which may include NDE of exposed critical areas of load
hook and some disassembly to access specific components and identify wear that exceeds allowable
tolerances.
Category IV - Category III inspection, plus further inspection where the equipment is disassembled to the extent
necessary to conduct NDE of all primary load-carrying components.
Periodic Inspection Categories and Frequencies Chart for 70 Series Tubing Blocks
Table
Number Semi- Other
Inspection Item Reference Daily Weekly Monthly Annually Annually Frequency
Hook 70 - 1 I II III IV (5 years)
Swivel Case 70 - 2 I II IV(5 years)
Rod Hook Clevis 70 - 3 I II III IV (5 years)
Hook Nut, Follower, Retaining Ring & Split Keeper Ring 70 - 4 I II IV(5 years)
Rod Hook Bolt, Lower Bolt Assembly & Center Pin 70 - 5 I II IV(5 years)
Sheave Bearing 70 - 6 I II IV(5 years)
Sheave 70 - 7 I II IV(5 years)
Load Plate & Center Plate 70 - 8 I II IV(5 years)
Hook Thrust Bearing 70 - 9 I II IV(5 years)
Case Bushing 70 - 10 I IV(5 years)
Coil Spring 70 - 11 I IV(5 years)

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Series 70 Inspection and Acceptance Criteria
Unless otherwise noted, all areas are to be considered A linear indication is an indication in which the length is
critical areas and require 100% inspection. For equal to or greater than three times the width. A rounded
purposes of this inspection plan, indications detected indication is an indication that is circular or elliptical, with
by magnetic particle method with major dimensions its length less than three times the width.
greater than 1/16 inch and associated with a surface If you should have any questions regarding the inspection
rupture are considered relevant. and acceptance criteria of the subject equipment, please
contact our Technical Support staff at 1-800-777-1555.
70 - 1
Inspection
Component Inspection Characteristic Method Acceptance Criteria or Remedy
Wear in body Visual Remove from service, any hook with wear exceeding
5% of original dimensions. Refer to page 14 for
original dimensions.
Defective locking mechanism Visual Replace with genuine Crosby McKissick® parts.
Missing bolts or improper replacements Visual Replace with genuine Crosby McKissick® parts.
Hook Damaged snap ring groove Visual Replace hook, or contact Crosby for remanufacture
instructions.
Wear at follower bushing location Visual Remove scratches and gouges by buffing or light
grinding to produce smooth bushing surface.
Corrosion in threads Visual Remove from service, any hook which has threads
corroded more than 20% of the nut engaged length.
Deformation Visual Visible deformation is cause for removal from service.
Cracks MPI Magnetic Particle Inspection per ASTME E 709. See
Table 1 (below) for acceptance criteria.
70 - 2
Inspection
Wear at case bolt location Visual Remove from service, any case with wear exceeding
5% of original dimension. Refer to page 14 for original
Swivel Case dimensions.
Cracks MPI See Table 1 (below) for acceptance criteria.
70 - 3
Inspection
Wear in body Visual Remove from service, any clevis with wear
exceeding 5% of original dimension. Refer to page
14 for original dimensions.
Rod Hook
Clevis
Deformation Visual Visible deformation is cause for removal from
service.
Cracks MPI Magnetic Particle inspection per ASTME E 709. See
ASTM E 125 Casting Acceptance Criteria:

Table 1
Maximum Permitted Degree
Discontinuity
Type Description Critical Area Non-Critical Area
l Hot tears, cracks None None
ll Shrinkage None Degree 1
lll Inclusions Degree 1 Degree 2
IV Internal chills, chaplets None Degree 1
V Porosity Degree 1 Degree 2

All Rights Reserved
Tubing Block Inspection and Acceptance Criteria (cont’d)
70 - 4
Inspection
Corrosion Visual Remove from service, any hook nut which has
threads corroded more than 20% of the engaged
length.
Cracks MPI Magnetic Particle Inspection per ASTM E 709.
Hook Nut, Acceptance criteria:
Follower, • No relevent indications.
Retainer Ring & • No more than three linear indications in a line
Split Keeper separated by less than 1/16" edge to edge.
Ring • No linear indications in pressure sealing
areas, the root area of rotary threads, and
stress relief features of thread joints.
Follower bushing wear Dimensional Remove from service, follower bushing, with
worn inside diameter exceeding the mating
shank diameter by .03".
Missing retainer plate screws Visual Replace with genuine Crosby McKissick® parts.
Missing nut lock device Visual Replace with genuine Crosby McKissick® parts
70 - 5
Inspection
Wear Visual Reduction of the center pin diameter due to
wear, scoring, etc. is cause for removal from
service. 5% of original dimension wear allowable
for other bolts. Refer to page 14 for original
dimensions.
Rod Hook Bolt,
Acceptance criteria:
Lower Bolt
Assembly & • No relevent indications.
Center Pin • No more than three relevant indications in a
line separated by less than 1/16" edge to
edge.
• No relevent indications in pressure sealing
areas, the root area of rotary threads, and
stress relief features of thread joints.
service.
70 - 6
Inspection
Wear Visual Remove from service, worn sheave bearings,
detected by noticeable side play of sheave, or
noticeable excessive wear of rollers or race
when disassembled.
Sheave
Corrosion Visual Remove from service, any bearing with corrosion
Bearing
on rollers or race that cannot be removed with
crocus cloth.
Missing or damaged Visual Remove from service any bearing with
displaced, missing, or damaged rollers.

All Rights Reserved
70 - 7
Inspection
Groove Wear Dimensional Remove from service, any sheave with groove
radius measurement that is outside allowable
minimum and maximum dimension as defined by
API RP 9B. See Table 2 below.
Cracks in web MPI Magnetic Particle Inspection per ASTM E 709.
• No relevant indications with a major dimension
equal to or greater than 3/16".
Sheave • No more than ten relevant indications in any
continous six square-inch area.
• No more than three relevant indications in a line
separated by less than 1/16" edge to edge.
• No relevant indications in pressure sealing
areas, the root area of rotary threads, and stress
relief features of thread joints.
Cracks in weld MPI Magnetic Particle Inspection per ASTM E 709.
• No relevent indications.
• No rounded indications greater than 1/8". For
weld 5/8" or less, and 3/16" for welds greater
than 5/8".
• Surface porosity and exposed slag is not
permitted on or within 1/8" of sealing surfaces.
Groove Radius Dimensions per API RP 9 B Tenth Edition

Table 2
Wire Rope Nominal Diameter (inch) 5/8” 3/4” 7/8” 1” 1-1/8” 1-1/4”
Groove Radius Minimum Worn (inch) .320 .384 .448 .513 .577 .641
Groove Radius Maximum (inch) .344 .413 .481 .550 .619 .688
70 - 8
Inspection
Wear at bolt and center pin bearing area Dimensional Remove from service, any plate with wear
exceeding 5% of original dimension. Refer to page
14 for original dimensions.
Load Plate equal to or greater than 3/16".
& • No more than ten relevant indications in any
Center Plate continous six square-inch area.
• No more than three relevant indications in line
service.
70 - 9
Inspection
Wear Visual Remove from service, any bearing with visible wear
of roller elements and races.
Hook
Missing or damaged rollers Visual Remove from service any bearing with displaced,
Thrust
missing, or damaged rollers.
Bearing
crocus cloth.

All Rights Reserved
70-10
Inspection
Case Wear Dimensional Remove from service, case bushings with worn
Bushing inside diameter exceeding the mating shank
diameter by .03".
70-11
Inspection
service.
Coil Spring
Cracked or broken coils MPI Magnetic Particle Inspection per ASTM E 709.
• No relevant indications.
• No more than three relevant indications in a line
McKissick® 70 Series Tubing Block Inspection Points

All Rights Reserved
McKissick® 70 Series Tubing Block
Original Reference Dimensions
Hook Swivel Case Rod Clevis
Rod Hook Bolt
Lower Bolt Assembly Center Plate Load Plate
Size A B C D E F G H J K L M
14” 72 2.00 3.15 1.25 .65 .72 — — 1.25 1.00 1.00 .48 1.16
14” 73 2.50 3.00 .97 .59 .97 .59 .59 1.81 1.25 1.00 .48 1.16
17” 72 2.50 3.00 .97 .59 .97 .59 .59 1.81 1.25 1.25 .97 1.84
17” 73 3.00 3.81 1.47 .59 1.19 .59 .59 1.81 1.50 1.25 .97 1.84
20” 72 3.00 3.81 1.47 .73 1.19 .59 .59 1.81 1.50 1.25 1.09 1.84
20” 73 4.00 5.34* 1.69* .73 1.69* .97* .97* 3.00* 2.50* 1.25 1.09 1.84
24” 72 4.00 5.34* 1.69* 1.03 1.69* .97* .97* 3.00* 2.50* 2.12 1.03 2.84
24” 73 4.50 5.34 1.69 1.03 1.69 .97 .97 3.00 2.50 2.12 1.03 2.84
30” 72 5.50 7.12 2.94 1.61 1.94 1.09 1.09 3.00 3.50 2.25 1.59 2.34
30” 73 5.50 7.12 2.94 1.61 1.94 1.09 1.09 3.00 3.50 2.25 1.59 2.34
*75 ton blocks produced before 1985 utilize a smaller hook assembly distinguishable by a 2.00” diameter rod hook bolt (Ref. 97). The following
dimensions apply. B = 4.25, C = 1.94, E = 1.56, F = .72, G = .72, H = 2.38, J = 2.00.

All Rights Reserved
Series 70 Parts List
Description Ref. No. Description Ref. No.

Side Plate Assy. 01 Lower Bolt Assy. 17
Arm Bolt Assy. 02 Hook with Nut with Arms 21
Pivot Pin 03 Follower 22
Center Plate 04 Bonnet 23
Swivel Case 06 Case Bushing 29
Center Pin Assy. TB 07 Retaining Ring 30
Sheave w/ TB 08 Coil Spring 31
Rod Hook Latch Bolt 09 Hook Thrust Brg 32
Tapered Brg. Assy. 10 Hook Locking Assy. 35
Sheave Grease Seal 11 Hook and Case Assy. 90
Guard Bolt Assy. 14 Rod Hook Clevis Assy. 96
Upper Bolt Assy. 15 Rod Hook Bolt Assy. 97

All Rights Reserved
14” 72, 72A 14” 73, 73A 17” 72, 72A 17” 73, 73A 20” 72, 72A 20” 73, 73A
Description Ref. No. Stock No. Stock No. Stock No. Stock No. Stock No. Stock No.
Side Plate Assy. 01 572561 572561 1401619 1401619 572605 572605
Arm Bolt Assy. 02 2019376 2019378 2019380 2019381 2019381 2019373**
Pivot Pin 03 2019377 2019379 2019379 100811 100811 2013974**
Center Plate 04 65663 65663 1401600 1401600 65690 65690
Swivel Case 06 127455 127491 127516 127552 127561 127614
Center Pin Assy. TB 07 575461 575470 1401575 1401593 574337 574346
Sheave w/TB (WL) 08 4303738 (5/8) 4303738 (5/8) 4303765 (3/4) 4303765 (3/4) 4301491 (7/8) 4301491 (7/8)
Sheave w/TB (WL) 08 4303747 (3/4) 4303747 (3/4) 4303774 (7/8) 4303774 (7/8) 4301543 (1) 4301543 (1)
Rod Hook Latch Bolt 09 — 100919 100919 572516 572516 100893**
Tapered Brd. Assy. 10 124412 124412 124412 124412 143865 143865
Sheave Grease Seal 11 77712 77712 77712 77712 58537 58537
Guard Bolt Assy. 14 134562 134571 122352 122361 100152 100143
Upper Bolt Assy. 15 573374 573347 573294 573267 573221 573212
Lower Bolt Assy. 17 573365 573338 573301 573258 573221 573212
Hook w/Nut w/Arms 21 127446 127482 127482 127543 127543 127570
Follower 22 68713 70265 70265 129792 129792 129809
Bonnet 23 69829 69838 69838 69847 69847 69856
Case Bushing 29 17350 17403 17403 17458 17458 55585
Retaining Ring 30 19401 19410 19410 19250 19438 19456
Coil Spring 31 20337 20346 20346 20355 20355 20355
Hook Thrust Brg. 32 18055 18064 18064 18082 18082 18108
Hook Locking Assy. 35 100991 100982 100982 100982 100982 100982
Hook and Case Assy. 90 101856 101865 101874 101883 101892 101909
Rod Hook Clevis Assy. 96 105585 101302 101302 101295 226286 226366**
Rod Hook Bolt Assy. 97 105594 100964 100964 100955 100955 100937**
* Some items may be unavailable due to obsolescence.
24” 72, 72A 24” 73, 73A 30” 73, 73A 30” 74, 74A
Description Ref. No. Stock No. Stock No. Stock No. Stock No.
Side Plate Assy. 01 572623 572623 572641 572641
Arm Bolt Assy. 02 2019373 2019373 2019382 2019382
Pivot Pin 03 2019374 2019374 2019382 2019382
Center Plate 04 70559 101963 65725 65725
Swivel Case 06 127669 127703 127758 127838
Center Pin Assy. TB 07 125983 125974 574113 574122
Sheave w/TB (WL) 08 4300321 (1) 4300321 (1) 4300535 (1-1/8) 4300535 (1-1/8)
Sheave w/TB (WL) 08 4300330 (1-1/8) 4300330 (1-1/8) 4300704 (1-1/4) 4300704 (1-1/4)
Rod Hook Latch Bolt 09 100893 100893 100884 100884
Tapered Brg. Assy. 10 600335 600335 600326 600326
Sheave Grease Seal 11 20042 20042 20024 20024
Guard Bolt Assy. 14 573169 573105 573052 572990
Upper Bolt Assy. 15 573178 573123 573061 573007
Lower Bolt Assy. 17 573150 573098 573034 126394
Hook w/Nut w/Arms 21 127570 1402985 127767 127767
Follower 22 129809 129818 129827 129827
Bonnet 23 69856 123146 69810 69810
Case Bushing 29 55585 70185 73609 73609
Retaining Ring 30 19456 19474 46783 46783
Coil Spring 31 20355 20364 2009576 2009576
Hook Thrust Brg. 32 18108 18135 18153 18153
Hook Locking Assy. 35 100982 100982 100982 100982
Hook and Case Assy. 90 101918 237586 101936 126161
Rod Hook Clevis Assy. 96 226366 226366 226393 226393
Rod Hook Bolt Assy. 97 100937 100937 100928 100928
** 75 ton blocks produced before 1985 utilize a smaller hook assembly distinguishable by a 2.00” diameter rod hook
bolt (Ref 97) and requires the following replacement parts.
Disc. Stock No.
Arm Bolt Assy. 100740
Pivot Pin 69669
Rod Hook Latch Bolt 100900
Rod Hook Clevis Assy. 226302
Rod Hook Bolt Assy. 100946
All Rights Reserved
Disassembly / Assembly Instructions for McKissick®
80 Series Tubing Blocks
On these pages are general disassembly and assembly
instructions for all sizes of McKissick® 80 Series Tubing
Blocks. The instructions outline the necessary
disassembly and assembly required for thorough
inspection, or replacement of internal parts.
WARNING
• Failure to read, understand and follow these
instructions may cause death or serious injury.
• Read and understand assembly or repair
instructions before disassembly of hook
assembly.
Disassembly
See pages 25 & 26 for block drawing and parts list
Figure 82 A
Remove lower bolt assemblies (17) to separate the
hook and case assembly from the upper block
assembly.
Upper Block
1. Position upper block assembly on flat surface with
sheave center pin assembly (07) vertical.
2. Remove all nuts, screws and bolt assemblies (14
and 15) attached to the block top plate (01).
3. Remove center pin star nut by removing locking cap
screw, and unthreading.
4. Remove top side plate assembly (01).
5. Remove sheave assembly (08).
6. Continue alternately removing load plates and Figure 83
sheaves to completely disassemble block.
Hook and Case Assembly - Split Nut
Hook and Case Assembly - Threaded Nut • Remove lower bolt assemblies (17) to separate the
hook and case assembly from the upper assembly.
• Secure hook assembly (90) so that shank is vertical
with case on top. • Secure hook assembly (90) so that shank is vertical
with case on top.
• Remove hook nut key (28) that is installed to retain
hook to hook nut. • Remove hook nut key that is installed to retain hook
to hook nut.
• Thoroughly clean debris out of drilled hole location
of hook nut key with compressed air or solvent. • Thoroughly clean debris out of drilled hole location
of hook nut key with compressed air or solvent.
• Firmly tap with brass hammer around the outside
surface of hook nut to loosen any threads damaged • Firmly tap with brass hammer around the outside
by the hook nut key. surface of hook nut to loosen any threads damaged
by the hook nut key.
• Remove the hook nut using a strap wrench if
necessary (the threads are right handed). If the • Remove the hook nut using a strap wrench if
hook nut becomes difficult to remove (tightens up necessary (the threads are right handed). If the
on the threads), it should be rotated back and forth, hook nut becomes difficult to remove (tightens up
and firmly tapped on with a brass hammer until it on the threads), it should be rotated back and forth,
loosens. and firmly tapped on with a brass hammer until it
loosens.
• Remove the hook thrust bearing (32) from the
swivel case (06). Note the orientation of the races of • Remove the hook thrust bearing (32) from the
the thrust bearing for proper re-assembly. swivel case (06). Note the orientation of the races of
the thrust bearing for proper re-assembly.
All Rights Reserved
Series 80 Assembly Instructions
Assembly • Attach hook and case assembly (90) to assembled
upper block by installing lower bolt assemblies (17),
Upper Block
then secure nuts with lock screws, or stake in place.
1. Install a star nut on one end of center pin (07). • Lubricate hook and sheave bearings.
2. Install side plate assembly (01) on center pin and
place with center pin vertical and nut on flat
horizontal surface. Hook and Case Assembly - Split Nut
3. Install one sheave assembly (08) including seals on • Measure hook case thickness. If dimension “A” is
center pin. less than value shown in table, case should be
4. Install one center plate (04). removed from service and replaced.
5. Continue alternately adding sheave and center • Install case bushing (29) in swivel case (06).
plates until total block width is reached. • Secure hook (21) with lock mechanism installed, in
6. Install side plate assembly, and star nut on topside of vertical orientation with shank up.
plate. After centering and tightening the star nuts on • Install swivel case (06) over shank.
the center pin, install nut lock screws. Note that the • Install thrust bearing (32). When being assembled,
sheave bearings are non-adjustable type tapered the thrust bearing must have the race with the large
roller bearings that require no specific adjustment. bore against the case or the hook will not swivel
Therefore, to tighten the center pin, the star nuts are properly. The small bore race must be against the
to be drawn tight and locked into place. hook nut. The race bores should be measured with
7. Rotate block to position with sheave center pin micrometers or calipers, as there is only .016 inch
horizontal, and top of block up. difference between upper race and lower race.
8. Install the spreader (upper casting) and upper bolt • Completely coat grooves of hook and hook split nut
assembly (15). grease or heavy rust preventative.
9. Install both hinged guard assemblies and bolts. • Install the split nut with drilled and tapped holes
10. Install all remaining nuts on bolt assemblies (except positioned up towards end of shank.
lower bolt assembly (17), and install lock screws, or • Install split nut on shank, making sure that nuts fully
stake in place securely. engage shank.
• Add thin film of grease, or heavy rust preventative on
the outside of the split nuts and inside of cap.
Hook and Case Assembly - Threaded Nut
• Align four holes of cap with matching holes in hook
• Secure hook (21) with lock mechanism installed, in and split nuts, then slide cap over split nuts. Install
vertical orientation with shank up. and seal 4 long bolts & lock washers. Tighten bolts
• Install swivel case (06) over hook shank. to the following values:
• Install case bushing (29) in swivel case (06). 50 Ton (11-15 Ft.-Lbs.) 75 Ton (19-27Ft.-Lbs.)
• Install thrust bearing (32). When being assembled, 100 Tons (47-65 Ft.-Lbs.)150 Ton (94-130Ft.-Lbs.)
the thrust bearing must have the race with the large
bore against the case or the hook will not swivel Safety wire the bolts.
properly. The small bore race must be against the
hook nut. The race bores should be measured with • Apply sealant, and install the set screw plug into
micrometers or calipers, as there is only .016 inch center hole of cap.
difference between upper race, and lower race.
• Install hook grease seal (33) over the top of the nut,
• Apply thread anti-seize and lubrication compound to and into case bore. Lip of seal is to be facing out.
threads of hook and hook nut before assembly.
• Attach hook and case assembly (90) to assembled
• Install the hook nut with chamfered corner upper block by installing lower bolt assemblies (17),
positioned towards end of hook shank. then secure nuts with lock screws, or stake in place.
• Adjust the nut to proper location on the hook shank • Lubricate hook and sheave bearings.
to provide .031 to .062 inch clearance between
bottom of case and hook shoulder.
• Install hook nut key (28) in existing hole location of
hook nut and shank, or cross-drill for new location at
a distance no further than ¼ of nut thickness from
top of nut.
• Install hook grease seal (33) over the top of the nut,
and into case bore. Lip of seal is to be facing out.
• Degrease top of nut and shank, and then apply
silicon sealant to cover exposed thread interface and
hook nut key holes.

All Rights Reserved
In accordance with API RP 8B, Recommended Practice Below please find the inspection category descriptions
for Procedures for Inspections, Maintenance, Repair, and recommended frequency for the critical load
and Remanufacture of Hoisting Equip, it is carrying components of the McKissick® 80 series tubing
recommended that the owner or user of the equipment blocks. When equipment is subjected to severe
develop his own schedule of inspections based on conditions such as impact loading or low temperature
experience, manufacturer’s recommendations, and service, a thorough inspection may be required at
consideration of one or more of the following factors: increased frequency.
environment; load cycles; regulatory requirements;
operating time; testing; repairs; and remanufacture.
INSPECTION CATEGORIES
Category I - Observation of equipment during operation for indications of inadequate performance.
Category II - Category I inspection, plus further inspection for corrosion; deformation; loose or missing components;
detrioration; proper lubriction; visible external cracks; and adjustment.
Category III - Category II inspection, plus further inspection, which should include NDE of exposed critical areas and
may involve some disassembly to access specific components and identify wear that exceeds
allowable tolerances.
Category IV - Category III inspection, plus further inspection, where the equipment is disassembled to the extent
necessary to conduct NDE of all primary load-carrying components.
Periodic Inspection and Frequencies Chart for 80 Series Tubing Block
Table
Number Semi- Other
Inspection Item Reference Daily Weekly Monthly Annually Annually Frequency
Hook 80 - 1 I II III IV (5 years)
Swivel Case 80 - 2 I II IV(5 years)
Rod Hook Clevis 80 - 3 I II III IV (5 years)
Hook Nut 80 - 4 I II IV(5 years)
Rod Hook Bolt, Lower Bolt Assembly & Center Pin 80 - 5 I II IV(5 years)
Sheave Bearing 80 - 6 I II IV(5 years)
Sheave 80 - 7 I II IV(5 years)
Load Plate & Center Plate 80 - 8 I II IV(5 years)
Hook Thrust Bearing 80 - 9 I II IV(5 years)
Case Bushing 80 - 10 I IV(5 years)

All Rights Reserved
Series 80 Inspection and Acceptance Criteria
Refer to Figure 6 (Page 23) for location of wear areas times the width. A rounded indication is an indication
requiring inspection as defined below. Unless otherwise that is circular or elliptical, with its length less than three
noted, all areas are to be considered critical areas and times the width.
require 100% inspection. For purposes of this If you should have any questions regarding the
inspection plan, indications detected by magnetic inspection and acceptance criteria of the subject
particle method with major dimensions greater than 1/16 equipment, please contact our Technical Support staff at
inch and associated with a surface rupture are 1-800-777-1555.
considered relevant. A linear indication is an indication
in which the length is equal to or greater than three
80 - 1
Inspection
Wear in body Visual Remove from service, any hook with wear exceeding
5% of original dimensions. Refer to page 24 for
original dimensions.
Defective locking mechanism Visual Replace with genuine Crosby McKissick® parts.
Corrosion in threads Visual Remove from service, any hook which has threads
Hook corroded more than 20% of the nut engaged length.
Cracks MPI Magnetic Particle Inspection per ASTME E 709. See
Table 1 (Page 10) for acceptance criteria.
Wear at Shank Visual Remove scratches and gouges by buffing or light
grinding to produce smooth bushing surface.
Corrosion in Grooves (split nut) Visual Remove from service, any hook which has grooves
corroded more then 5% of each groove thickness.
80 - 2
Inspection
Wear at case bolt location Visual Remove from service, any case with wear exceeding
5% of original dimension. Refer to page 24 for original
Swivel Case dimensions.
Cracks MPI See Table 3 (below) for acceptance criteria.
80 - 3
Inspection
Wear in body Visual Remove from service, any clevis with wear
exceeding 5% of original dimension. Refer to
page 24 for original dimensions.
Rod Hook
Clevis Missing bolts or improper replacements Visual Replace with genuine Crosby McKissick® parts.
service.
Cracks MPI Magnetic Particle inspection per ASTME E 709. See
ASTM E 125 Casting Acceptance Criteria:

Table 3
Maximum Permitted Degree
Discontinuity
Type Description Critical Area Non-Critical Area
l Hot tears, cracks None None
ll Shrinkage None Degree 1
lll Inclusions Degree 1 Degree 2
IV Internal chills, chaplets None Degree 1
V Porosity Degree 1 Degree 2

All Rights Reserved
80 - 4
Inspection
Corrosion Visual Remove from service, any hook nut which has threads corroded more
than 20% of the engaged length.
Cracks MPI Magnetic Particle Inspection per ASTM E 709. Acceptance criteria:
Hook Nut • No more than three linear indications in a line separated by less than 1/
16" edge to edge.
• No linear indications in pressure sealing areas, the root area of rotary
threads, and stress relief features of thread joints.
Missing nut lock device Visual Replace with genuine Crosby McKissick® parts.
80 - 5
Inspection
Wear Visual Reduction of the center pin diameter due to wear, scoring, etc. is cause
for removal from service. 5% of original dimension wear allowable for
other bolts. Refer to page 14 for original dimensions.
Cracks MPI Magnetic Particle Inspection per ASTM E 709. Acceptance criteria:
Rod Hook Bolt,
Lower Bolt • No relevent indications.
Assembly & • No more than three relevant indications in a line separated by less than
Center Pin 1/16" edge to edge.
• No relevent indications in pressure sealing areas, the root area of
rotary threads, and stress relief features of thread joints.
80-6
Inspection
Wear Visual Removal from service, worn sheave bearings, detected by noticeable
side play of sheave, or noticeable excessive wear of rollers or race when
disassembled.
Sheave
Corrosion Visual Remove from service, any bearing with corrosion on rollers or race that
Bearing
cannot be removed with crocus cloth.
Missing or damaged Visual Remove from service any bearing with displaced, missing, or damaged
rollers.
80-7
Inspection
Groove Wear Dimensional Remove from service, any sheave with groove radius measurement that
is outside allowable minimum and maximum dimension as defined by API
RP 9B. See Table 2 on page 22.
Cracks in web MPI Magnetic Particle Inspection per ASTM E 709.
• No relevant indications with a major dimension equal to or greater than
3/16".
Sheave • No more than ten relevant indications in any continous six square-inch
area.
• No more than three relevant indications in a line separated by less than
1/16" edge to edge.
• No relevant indications in pressure sealing areas, the root area of rotary
threads, and stress relief features of thread joints.
Cracks in weld MPI Magnetic Particle Inspection per ASTM E 709.
• No rounded indications greater than 1/8". For weld 5/8" or less, and
3/16" for welds greater than 5/8".
• Surface porosity and exposed slag is not permitted on or within 1/8" of
sealing surfaces.

All Rights Reserved
Groove Radius Dimensions per API RP 9B Tenth Edition

Table 4
Wire Rope Nominal Diameter (inch) 5/8” 3/4” 7/8” 1” 1-1/8” 1-1/4”
Groove Radius Minimum Worn (inch) .320 .384 .448 .513 .577 .641
Groove Radius Maximum (inch) .344 .413 .481 .550 .619 .688
80 - 8
Inspection
Wear at bolt and center pin bearing area Dimensional Remove from service, any plate with wear
exceeding 5% of original dimension. Refer to
page 24 for original dimensions.
Load Plate equal to or greater than 3/16".
& • No more than ten relevant indications in any
Center Plate continous six square-inch area.
• No more than three relevant indications in line
service.
80 - 9
Inspection
Wear Visual Remove from service, any bearing with visible wear
of roller elements and races.
Hook
Thrust Missing or damaged rollers Visual Remove from service, any bearing with displaced,
Bearing missing, or damaged rollers.
crocus cloth.
80 - 10
Inspection
Case Wear Dimensional Remove from service, case bushings with worn
Bushing inside diameter exceeding the mating shank
diameter by .03".

All Rights Reserved
McKissick® 80 Series Tubing Block Inspection Points
Figure 6

All Rights Reserved
McKissick® 80 Series Tubing Block
Original Reference Dimensions
Hook Nut Swivel Case Rod Clevis
Rod Hook Bolt
Lower Bolt Assembly Center Plate Load Center Plate
Size A B C D E F G H J K L M
14” 82 2.00 3.15 1.25 .66 .72 — — 1.25 1.00 1.00 .48 1.16
14” 83 2.50 3.31 .97 .47 .97 .59 .59 1.81 1.25 1.00 .48 1.16
17” 82 2.50 3.31 .97 .59 .97 .59 .59 1.81 1.25 1.25 .97 1.84
17” 83 3.00 3.81 1.47 .59 1.19 .59 .59 1.81 1.50 1.25 .97 1.84
20” 82 3.00 3.81 1.47 .72 1.19 .59 .59 1.81 1.50 1.25 1.09 1.84
20” 83 4.00 4.12 1.94 .53 1.56 .72 .72 2.38 2.00 1.25 1.09 1.84
24” 82 4.00 4.12 1.94 .91 1.56 .72 .72 2.38 2.00 2.12 1.03 2.84
24” 83 4.00 4.75 1.75 .91 1.69 .97 .97 3.00 2.50 2.12 1.03 2.84
30” 82 4.00 4.75 1.75 .91 1.69 .97 .97 3.00 2.50 2.12 1.41 2.78
30” 83 5.00 6.88 2.94 1.59 1.94 1.09 1.09 3.00 3.50 2.25 1.59 2.34
30” 84 5.00 6.88 2.94 .91 1.94 1.09 1.09 3.00 3.50 2.12 1.28 2.97

All Rights Reserved
Series 80 Part List
Description Ref. No.

Side Plate Assy. 01
Arm Bolt Assy. 02
Pivot Pin 03
Center Plate 04
Swivel Case 06
Center Pin Assy. TB 07
Sheave w/TB 08
Rod Hook Latch Bolt 09
Taper Brg. Assy. 10
Sheave Grease Seal 11
Guard Bolt Assy. 14
Upper Bolt Assy. 15 API Working Minimum “A”
Lower Bolt Assy. 17 Block Load Limit Dimension
Series (tons) (in.)
Hook with Nut with Arms 21
Hook Nut Key 28 17” 83 / 20” 82 50 1.82
Case Bushing 29 20” 83 / 24” 82 75 1.94
Retaining Ring 30
24” 83 / 24” 84 100 2.82
Hook Thrust Brg. 32
Hook Grease Seal 33 30” 83 / 30” 84 150 2.44
Hook Locking Assy. 35
Hook and Case Assy. 90
Rod Hook Clevis Assy. 96
Rod Hook Bolt Assy. 97

All Rights Reserved
Ref. 14” 82, 82A 14” 83, 83A 17” 83, 83A 17” 83, 83A 20” 82, 82A 20” 83, 83A
Description No. Stock No.* Stock No.* Stock No.* Stock No.* Stock No.* Stock No.*
Side Plate Assy. 01 572561 572561 1401619 1401619 572605 572605
Arm Bolt Assy. 02 2019376 2019380 2019380 2019381 2019381 100740
Pivot Pin 03 2019377 2019379 2019379 100811 100811 100802
Center Plate 04 65663 65663 1401600 1401600 65690 65690
Swivel Case 06 1405562 1405606 1405786 1405795 1405250 1405802
Center Pin Assy. TB 07 575461 575470 1401575 1401593 574337 574346
Sheave w/TB (WL) 08 4303738 (5/8) 4303738 (5/8) 4303765 (3/4) 4303765 (3/4) 4301491 (7/8) 4301491 (7/8)
Sheave w/TB (WL) 08 4303747 (3/4) 4303747 (3/4) 4303774 (7/8) 4303774 (7/8) 4301543 (1) 4301543 (1)
Rod Hook Latch Bolt 09 — 100919 100919 572516 572516 100900
Tapered Brg. Assy. 10 124412 124412 124412 124412 143865 143865
Sheave Grease Seal 11 77712 77712 77712 77712 58537 58537
Guard Bolt Assy. 14 134562 134571 122352 122361 100152 100143
Upper Bolt Assy. 15 573374 573347 573294 573267 573221 573212
Lower Bolt Assy. 17 573365 573338 573301 573258 573221 573212
Hook w/Nut w/Arms 21 131173 131182 131182 131191 131191 131333
Hook Nut Key 28 55889 55718 55718 69437 69437 55870
Case Bushing 29 17305 17350 17350 17403 17403 17458
Retaining Ring 30 19526 19385 19385 19250 19250 19269
Hook Thrust Brg. 32 18046 18055 18055 18064 18064 18082
Hook Grease Seal 33 19955 19704 19704 19722 19722 19919
Hook Locking Assy. 35 100991 100982 100982 100982 100982 100982
Hook and Case Assy. 90 11612 111621 111630 111649 111658 111667
Rod Hook Clevis Assy. 96 105585 101302 101302 101295 226286 226302
Rod Hook Bolt Assy. 97 105594 100964 100964 100955 100955 100946
Ref. 24” 82, 82A 24” 83, 83A 24” 84, 84A 30” 83, 83A 30” 84, 84A
Description No. Stock No. Stock No. Stock No. Stock No. Stock No.
Side Plate Assy. 01 572623 572623 124047 572641 120292
Arm Bolt Assy. 02 100740 2019373 2019373 2019382 2019382
Pivot Pin 03 100802 100795 100795 2019382 2019382
Center Plate 04 70559 101963 79925 65725 75046
Swivel Case 06 1405429 1405811 1405820 1405839 1405848
Center Pin Assy TB 07 125983 125974 336121 574113 336121
Sheave w/TB 08 430032 (1) 430032 (1) 4300321 (1) 4300535(1-1/8) 4300508(1-1/8)
Sheave w/TB 08 4300330 (1-1/8) 4300330 (1-1/8) 4300330 (1-1/8) 4300704(1-1/4) 4301712(1-1/4)
Rod Hook Latch Bolt 09 100900 100893 100893 100884 100884
Tapered Beg. Assy. 10 600335 600335 600335 600326 600335
Sheave Grease Seal 11 20042 20042 20042 20042 20042
Guard Bolt Assy. 14 573169 573105 120283 573052 120283
Upper Bolt Assy. 15 573178 573123 120265 573061 120265
Lower Bolt Assy. 17 573150 573098 120327 573034 120327
Hook w/Nut w/Arms 21 131333 131351 131351 131388 131388
Hook Nut Key 28 55870 55843 55843 55727 55727
Case Bushing 29 17458 17458 17458 55585 55585
Retaining Ring 30 19269 19278 19278 — —
Hook Thrust Brg. 32 18082 18091 18091 18117 18117
Hook Grease Seal 33 19919 19875 19875 19624 19624
Hook Locking Assy. 35 100982 100982 100982 100982 100982
Hook and Case Assy. 90 111676 237595 124109 111694 120318
Rod Hook Clevis Assy. 96 226302 226366 226366 226393 226393
Rod Hook Bolt Assy. 97 100946 100937 100937 100928 100928

All Rights Reserved
Maintenance Alert
McKissick® 14” through 24” Oilfield Tubing Blocks
The Crosby Group, Inc. is aware of improper use and

maintenance of McKissick® 14” through 24” Tubing
Blocks. Some crew members are removing the hook
latch pivot pin, to load the links. Repeated removal and
installation of the pivot pin retaining rings may damage
the rings and prevent proper seating in pin grooves.
The hook latch assembly consists of a lower pivot pin

and an upper arm bolt assembly. The lower pivot pin
assembly consists of a pin with grooves at each end and
two retaining rings. The upper arm bolt assembly
consists of a bolt, castellated nut, and cotter pin. This
design allows the latch to pivot open after the arm bolt is
removed. Repeated removal and re-installation of the
pivot pin retaining ring is not recommended.
• Crosby recommends at your next frequent

inspection to visually inspect the pivot pin retaining
rings for damage and verify they are securely seated
in pin grooves.
• Proper installation of an undamaged genuine
Crosby retaining ring is the responsibility of the end
user. HOOK
• Damaged retaining rings or rings not properly
seated and secured, may allow the pivot pin to
disengage and fall to the rig floor during operation.
• Use only genuine Crosby replacement parts.
• A falling pin may cause serious injury or death.
To accommodate end users who prefer removing the

lower bolt the latch on the upper arm bolt assembly,
Crosby offers a lower bolt assembly with a castellated
nut and cotter pin to replace the lower pivot pin.
If you should have any questions regarding this
Maintenance Alert, please contact our Technical
Support staff at 1-800-777-1555.

All Rights Reserved
Maintenance Alert
Series 80 Standard Series 90 Standard Series 21 and 31 Double & Triple

Tubing Blocks Tubing Blocks Dividing Standard Tubing Blocks
The Crosby Group, Inc. is aware of

instances where blocks have been
improperly maintenanced. The
above listed blocks, if improperly
maintenanced may result in severe
corrosion of the threads that
connect the hook shank to the
round nut.
If, by inspection, it is found that the

threads are badly deformed and/or
corroded, and the sum of the
effected thread length exceeds 20%
of the total length, the block should
Figure 1 Figure 3
be removed from service. If you
should have any questions
regarding this inspection procedure, Cover entire surface with about
call 1-800-777-1555. 1/16” thickness of sealant.
Reassembly of inspected parts, or Apply rubber cap to the top surface

replacement parts, should of the nut/hook shank. Press rubber
incorporate the use of a thread cap downward causing sealant to
sealing compound applied to the flow inward and outward from
threads of the hook shank and the rubber cap edge. Wipe away excess
round nut. creating a fillet around each edge
(See Figure 3).
Recommended Thread Sealants:
Figure 2 Then, with degreasing solvent,
clean either end of spring pin that
TFE - Thread Sealer #C-648F In preparation for applying the has been inserted through the
(Mfg. Fel-Pro, Inc.; Skokie, IL) rubber cap, clean the top surface of round nut and shank. Apply silicone
Never-Seez (Mfg. never-Seez the nut/hook shank and one side of sealant to the ends of the spring
Corp.) the rubber cap with a degreasing pin.
solvent (See figures 1 and 2).
To complete the assembly, a rubber
gasket ring cap (Buna-N material Apply a silicone rubber sealant Subsequent annual inspections
1/16” thick) that covers the threaded (Mfg. - General Electric or Dow should be made in accordance with
joint should be applied to the top Corning) to the cleaned side of the intervals established by OSHA or
surface of the nut/hook shank. rubber cap. API.
(The rubber gasket ring cap may be
purchased from Crosby / McKissick®.

All Rights Reserved
Maintenance Alert
The Crosby Group, Inc. has recently been made aware of conditions of inadequate maintenance, inspection, and
unauthorized modification of McKissick® oilfield tubing blocks.
The Crosby Group, Inc. does not recommend the use of equipment that has been modified or repaired beyond the
given allowables, and recommends the use of only genuine Crosby® McKissick® replacement parts. Age, severity of
service and obsolescence of design may preclude repair, and should result in block assembly being removed from
service.
As defined in API RP8B and AESC (formerly AOSC) Recommended Safe Procedures and Guidelines for Oil and Gas
Well Servicing, maintenance and inspection must be performed on sheave blocks to ensure they are in proper
working condition. Visual and magnetic particle inspection must be performed on all primary load carrying
components to detect service related defects such as wear and fatigue cracks. Fatigue cracks left undetected will
progress to ultimate component failure at load less than the predicted ultimate load of the block due to reduced cross
section of the material at crack location. The Crosby Group warnings has general guidelines for inspection and
removal from service criteria for tackle blocks and can be found in the Crosby general catalog.
For McKissick® tubing maintenance, refer to sections of Tackle Block Maintenance and/or Fitting Maintenance
sections of Tackle Block Warning, Use and Maintenance Information located in the latest edition of Crosby’s general
catalog. Other guidelines for inspection and maintenance can be found in API RP8B and RP9B, in addition to AESC
(formerly AOSC) Recommended Safe Procedures and Guidelines for Oil and Gas Well Servicing.
Inspection of primary load carrying components, as shown in this document, must be performed in addition to the
above requirements. Frequency of the inspection should be based on the environment, load cycles, and operation
time. Annual inspection is recommended. However, the maximum inspection interval should not exceed five (5) years.
Shown below are representative blocks covered by this inspection plan.
If you should have any question regarding this Maintenance Alert or the inspection and acceptance criteria of the
subject equipment, please contact our Technical Support staff at 1-800-777-1555.
20 Series Double Dividing 70 Series Spring Loaded 100 Series 120 Series
30 Series Triple Dividing 80 Series Duplex Hooks
90 Series Auto Latching

All Rights Reserved
Crosby Testing
Glossary of Terms for Testing and Third Party Certification
American Bureau of Shipping - (ABS)
American Bureau of Shipping is a third party certification agency. ABS publishes several guidelines for various lifting applications.
Some of the most common “lifting” guidelines include the following.
• Guide for Certification of Cranes
• Requirements for Certification of Construction and Survey of Cargo Gear on Merchant Vessels
• Guide for the Certification of Drilling Systems
(This is not intended to be a complete list of guidelines published by ABS.)
A common request is for ABS third party witness of proof test and magnetic particle inspection after proof test.
Depending on the type of certification, requirements may include design review, materials testing, nondestructivetesting, proof load
and special packaging.
When specifying ABS certification, it is necessary to know to which guideline the product is to be certified (i.e., Guide for
Certification of Cranes, etc.).
Det Norske Veritas - (DNV)

Det Norske Veritas is an independent foundation established in 1864 for safeguarding life, property and the environment. Along
with inspection and advisory services, DNV provides the following three types of certification services.
Classification - Certification based on DNV Rules or Certification Notes.
Statutory Certification - Certification under authority granted by National Authorities (i.e., NPD,UK-HSE, Canada, Australia, etc.)
according to acts, regulations, statutory instruments given by Statutory Authorities.
Conformity Certification - Certification to client specifications, National Standards or recognized codes. Some of the most common
DNV certification rules for lifting are:
• Rules for Certification of Lifting Appliances
• Certification Notes No. 2.7-1 Offshore Containers
• Rules for Classification of Mobile Offshore Units Part 6, Chapter 5.
(This is not intended to be a complete list of DNV Rules.)
Lifting products may require design review, materials testing, nondestructive testing, DNV issued Proof Test Certificate (CG3) and
DNV issued Certificate of Conformity (C of C).
Type approved products with a Manufacturer’s Survey Agreement (MSA), require all the above except: Design Review, DNV issued
Proof Test Certificate (CG3) and DNV issued Certificate of Conformity (C of C). For products certified to 2.7-1 Specification (Off-
shore Containers), DNV witnesses proof test and issues their Proof Test Certificate (CG3) and Certificate of Conformity (C of C) to
the distributor responsible for building the container set. It is the distributor’s responsibility and cost to contact DNV.
When specifying DNV certification, always specify one of the three types of services, and if it is a DNV Rule, which Rule is
applicable (i.e., Rules for Certification of Lifting Appliances, etc.).
American Petroleum Institute - (API)

Established in 1919, API writes specifications that are published as aids for the procurement of standardized equipment and mate-
rials, as well as instructions to manufacturers of equipment or materials covered by an API specification. Some of the common
specifications written by API for “Lifting” are:
• Specification for Drilling and Production Hoisting Equipment (API Spec 8A)
• Specification for Drilling and Production Hoisting Equipment (API Spec 8C)
• Specification for Offshore Cranes (API Spec 2C)
• Specification for Wire Rope (API 9 Spec A)
• Specification for Quality Programs (API Spec Q1)
A standard to which a manufacturer’s quality system must comply in order to state that products are manufactured to API require-
ments, resulting in permission to apply the API monogram.
When specifying API, it is necessary to know to which API Specifications the product is to be certified (i.e., Specification
for Drilling and Production Hoisting Equipment (API Spec 8A), etc.).
Lloyd’s Register of Shipping

A society established in 1760 and recognized under UK laws and to provide third party assurance of compliance to plans, specifi-
cations, rules, codes and fitness of use by approving designs, surveys and reports. Lloyd’s Register acts on behalf of clients and
governments to verify products conform to statutory requirements and provides inspection and advisory services to clients.
Some of the most commonly used Lloyd’s Register certification types include the following.
• Code for Lifting Appliances in a Marine Environment
• Rules and Regulations for the Classification of Ships
• Rules and Regulations for the Classification of Mobile Offshore Units
• Container Certification Scheme

All Rights Reserved
Glossary of Terms for Testing and Third Party Certification
Cont’d
A common request is for Lloyd’s Register Witness Proof Test and Magnetic Particle Inspection with Certification. However,
certification may require design review, material tests or product verification to statutory or customer requirements.
When specifying Lloyd’s Register of Shipping certification, know the code, standard, statute or customer requirement
(i.e., Code for Lifting Appliances in a Marine Environment, etc.).
Federal Specifications & Military Standards

The Federal Specifications & Military Standards’ documents specify dimensional, performance and test requirements for products.
Some specifications define particular testing that is not normally performed on standard items. Crosby products, when identified in
the latest Crosby General Catalog, will meet the requirements when tested by the party awarded the government contract. Certifi-
cation is usually covered by a Crosby Standard Certificate of Conformance.
ISO 9001
A standard defining a manufacturer’s or service organization’s Quality Management System requiring third party certification. ISO
9001, the most comprehensive ISO certification level, involves the design, development, production and shipping of products. ISO
9001 requires that all procedures, work instructions, processes and additional activities be documented.
Attainment of ISO 9001 forms the basis for meeting other world standards and provides customers with documented proof of
Crosby’s ability to consistently provide product quality and performance.
National Association of Chain Manufacturers (NACM)

A U.S. Standard specifying dimensional and performance criteria for graded chain.
American Society for Testing and Materials (ASTM)

American Society for Testing and Materials, established in 1898, is the largest voluntary standards development system in the
world. ASTM Standards cover:
Inspection Methods (Certificates Required) — i.e., Magnetic Particle, Ultrasonic, Dye Penetrant, X-Ray, Hardness, etc.
Processes (Standard Certificate of Conformance) — i.e., Hot Dip Galvanizing, Electroplate, Mechanical Galvanizing, etc.
Material Properties (Tensile Test Report Required) — i.e., Specification for Steel Forging, Carbon and Alloy for General Industrial
Use (A668), Specification for Steel, Closed-Impression Die Forgings for General Industrial Use (A521), etc.
Material Test Methods — Covers Tensile and Charpy impact test specimens and test methods. i.e., Test Methods of Tension Test-
ing of Metallic Materials (E8), A370 Test Methods and Definitions for Mechanical Testing of Steel Products (A370), etc.
American National Standards Institute (ANSI)

American National Standards Institute established in 1916 develops product specific performance standards for items such as
cranes, hooks, slings, screw threads, etc., usually covered with a standard Certificate of Conformance.
Crosby Standard Testing Upon Request

*Crosby Proof Test with Third Party Witness — Receive load test certification signed, documented and serial number
traceable to these agencies: ABS, DNV, Lloyd’s, B.V., RINA, Germanischer Lloyd, etc.
*Crosby Proof Test with I.L.O. Certificates — Standard load test performed and documented on International Labor
Organization Form 4 (I.L.O. Form 4). Certified and traceable by serial number. The certificates are maintained at Crosby.
Crosby Standard Certificate of Conformance — Part number, description, date and statement of conformity to Crosby
literature available at time of manufacture.
*Crosby Magnetic Particle Inspection with Certification — ASTM E-709 wet or dry method standard at Crosby. Customer
can require other types.Certified and traceable to serial number.
*Crosby Ultrasonic Inspection with Certification — ASTM A-609 for castings, ASTM A-388 for forging standard at Crosby
Customer can require other types. Certified and traceable to serial number.
*Crosby X-Ray with Certification — Customer provides x-ray technique and level of acceptance.
*Crosby Dye Penetrant Inspection with Certification — A liquid penetrant examination to ASTM E-165. Other types of Dye
Penetrant certification is available at time of order. Certified and traceable to serial number.
*Crosby Material Tensile Test with Certification — Tensile test performed per ASTM A370. Test report documents
Tensile strength, Yield Strength, Elongation, and Reduction of Area.
Crosby Material Chemical with Certification — Chemical certification provided by steel mill or foundry Traceable to
heat number, heat letters and PIC code.
*Crosby Charpy Impact Test with Certification — Impact Test per ASTM A370 or ASTM E8 at temperature, location,
and energy absorbed requirement as defined by customer or applicable specification.
*A charge will be applied. Crosby certification is available when requested at time of order.
The items listed above are for standard certification. Additional certification is available and must be requested at time of order.

All Rights Reserved
P.O. Box 3128
Tulsa, OK 74101
(918) 834-4611
Fax (918) 832-0940
www.thecrosbygroup.com
Stk# 9999207 PPG 7/2006

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General Cautions and Warnings . . . . . . . . . . . . . . . . 1 McKissick® 80 Series Tubing Blocks

PLANTS AND FACILITIES

ARKANSAS / NATIONAL SWAGE

Copyright © 2006 The Crosby Group, Inc.

Copyright © 2006 The Crosby Group, Inc. 1

Fig. 72A Fig. 73

2 Copyright © 2006 The Crosby Group, Inc.

Fig. 82A Fig. 83 *patented

Copyright © 2006 The Crosby Group, Inc. 3

72,180 lbs. (load to be lifted) 9.02

4 Copyright © 2006 The Crosby Group, Inc.

Sheave Bearings Hook Bearings

On the following pages are general disassembly and

There are two versions of spring retention devices that

The instructions consider both methods. Disassembly

6 Copyright © 2006 The Crosby Group, Inc.

Copyright © 2006 The Crosby Group, Inc. 7

8 Copyright © 2006 The Crosby Group, Inc.

Category I - Observation of equipment during operation for indications of inadequate performance.

Copyright © 2006 The Crosby Group, Inc. 9

ASTM E 125 Casting Acceptance Criteria:

10 Copyright © 2006 The Crosby Group, Inc.

Copyright © 2006 The Crosby Group, Inc. 11

Groove Radius Dimensions per API RP 9 B Tenth Edition

12 Copyright © 2006 The Crosby Group, Inc.

McKissick® 70 Series Tubing Block Inspection Points

Copyright © 2006 The Crosby Group, Inc. 13

Hook Swivel Case Rod Clevis

Rod Hook Bolt

Lower Bolt Assembly Center Plate Load Plate

14 Copyright © 2006 The Crosby Group, Inc.

Description Ref. No. Description Ref. No.

Copyright © 2006 The Crosby Group, Inc. 15

18 Copyright © 2006 The Crosby Group, Inc.

Category I - Observation of equipment during operation for indications of inadequate performance.

Periodic Inspection and Frequencies Chart for 80 Series Tubing Block

Copyright © 2006 The Crosby Group, Inc.

ASTM E 125 Casting Acceptance Criteria:

20 Copyright © 2006 The Crosby Group, Inc.

Copyright © 2006 The Crosby Group, Inc. 21

Groove Radius Dimensions per API RP 9B Tenth Edition

22 Copyright © 2006 The Crosby Group, Inc.

Copyright © 2006 The Crosby Group, Inc. 23

Hook Nut Swivel Case Rod Clevis

Rod Hook Bolt

Lower Bolt Assembly Center Plate Load Center Plate

24 Copyright © 2006 The Crosby Group, Inc.

Description Ref. No.

Copyright © 2006 The Crosby Group, Inc. 25

26 Copyright © 2006 The Crosby Group, Inc.

The Crosby Group, Inc. is aware of improper use and

The hook latch assembly consists of a lower pivot pin

• Crosby recommends at your next frequent

To accommodate end users who prefer removing the

Copyright © 2006 The Crosby Group, Inc. 27

Series 80 Standard Series 90 Standard Series 21 and 31 Double & Triple

The Crosby Group, Inc. is aware of