QBH Ram BOP's

4-1/16" 15,000 psi WP

Operation and Maintenance Manual

TC1589

Cameron, P.O. Box 1212, Houston, Tx 77251-1212, 713-939-2211, http://www.coopercameron.com

 All the information in this manual is the exclusive property of Cooper
Cameron Corporation, Cameron Division. Any reproduction or use of
the calculations, drawings, photographs, procedures, or instructions, ei-
ther expressed or implied, is forbidden without the expressed written
permission of Cameron or its authorized agent.

Initial Release 01
January 2006

Copyright © 2006 all rights reserved

by
Cooper Cameron Corporation, Cameron Division

TC1589 ii
PREFACE
The procedures included in this book are to be performed in conjunction
with the requirements and recommendations outlined in API Specifica-
tions. Any repairs to the equipment covered by this book should be done
by an authorized Cameron service representative. Cameron will not be
responsible for loss or expense resulting from any failure of equipment or
any damage to any property or death or injury to any person resulting in
whole or in part from repairs performed by other than authorized
Cameron personnel. Such unauthorized repairs shall also serve to termi-
nate any contractual or other warranty, if any, on the equipment and
may also result in equipment no longer meeting applicable require-
ments.

File copies of this manual are maintained. Revisions and/or additions will
be made as deemed necessary by Cameron. The drawings in this book are
not drawn to scale, but the dimensions shown are accurate.

This book covers Cameron products, which are products of Cooper

Cameron Corporation.

Cooper Cameron Corporation

Cameron Division
P.O. Box 1212
Houston, Texas 77251-1212
713-939-2211
http://www.coopercameron.com

TC1589 iii
TC1589 iv
Table Of Contents

Chapter 1 - Introduction

Chapter 2 - Operation

Chapter 3 - Maintenance

Chapter 4 - Parts Listings and Specifications

TC1589 v
TC1589 vi
Chapter 1 - Introduction

QBH ram blowout preventers have been designed to provide many years of
trouble free and reliable service. The ram preventer was designed to close the
annular space outside tubing thus controlling the annulus pressure. The QBH
preventers have the following special features:

Compact Size

To minimize space and handling requirements the BOP was designed with
low height and weight.

Easy Maintenance

The low weight and design of the bonnets allow for the operating system
seals to be changed easily.

TC1589 1-1
TC1589 1-2
Chapter 2 - Operation

I. Installation of a New Unit . . . . . . . . . . . . . . . . . . . . . . . . 2-3

II. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

III. Fluid Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

IV. Operating Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

V. Lock Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

TC1589 2-1
TC1589 2-2
I. INSTALLATION OF A NEW UNIT
1. Remove all the flange protective covers. Ensure all ring grooves are
clean.

2. Position the BOP assembly with the flange end down so the "Open" &
“Close” port signs are right side up. Caution: The QBH preventer is de-
signed to have well bore pressure assist in sealing off the annulus. The
preventer will not seal properly if the preventer is installed upside
down.

3. Install a new ring gasket on the stack connector. Place the preventer
on top of the stack connector. Lubricate all threads with silicone or
modified thread compound. Torque all flanges or studs per the torque
sequencing chart and to the recommended torque values. Please ref-
erence Section 4 of this manual for these values.

4. Install the choke and kill valves and spools. Install new ring gaskets on
all outlets.

5. Connect all of the hydraulic lines from the control system.

6. Open all door assemblies to ensure ram assemblies are in the correct
location in relationship to the clients stack configuration.

7. Perform an open and close hydraulic test on all door assemblies. Refer
to the test procedure referenced in Section 3 of this manual. Ensure
there are no leaks.

8. Close all of the door assemblies. Open all of the choke and kill valves.
Fill the BOP stack with water. Function all of the valves and rams sev-
eral times to remove possible trapped air.

9. Perform a well bore pressure test on all cavities.

10. Bleed test pressure to zero prior to performing any other operation.

II. OPERATION
Hydraulic fluid is the medium used to operate the preventer. When 1,500 psi
regulated hydraulic pressure is applied to the closing side of the preventer the
piston assemblies will close.

TC1589 2-3
III. FLUID REQUIREMENTS
The fluid should:

1. Be compatible with the rubber goods (Nitrile, Viton, & Molythane) of

blowout preventer.

2. Prevent damage caused by corrosion to metal parts.

3. Provide lubricity to prevent wear to metal surfaces.

IV. OPERATING PRESSURE

The standard operating pressure of the preventer is 1,500 psi for both the
open and close functions. Under emergency conditions the preventer can be
operated with 3,000 psi operating pressure.

Note: The service life of the ram packers will be decreased with extended opera-
tion at fluid pressures above 1,500 psi.

V. LOCK MECHANISM
The lock screw is designed to maintain closing pressure to the rams in the oc-
currence of a hydraulic leak. The lock screw should be tightened against the
operating piston when the rams are closed.

TC1589 2-4
Chapter 3 - Maintenance

I. Disassembly Procedure, Bonnet Assemblies . . . . . . . . . . . . . . . 3-3

II. Assembly procedure, Bonnet Assemblies . . . . . . . . . . . . . . . . 3-3

III. Ram Installation (Hydraulic BOP's) . . . . . . . . . . . . . . . . . . . 3-5

IV. Hydraulic Function Pressure Test . . . . . . . . . . . . . . . . . . . . 3-5

V. Opening Side Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

VI. Closing Side Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

VII. Low & High Pressure Well Bore Test . . . . . . . . . . . . . . . . . . 3-6

VIII. Monthly Preventative Maintenance . . . . . . . . . . . . . . . . . 3-7

IX. Three Month Preventative Maintenance. . . . . . . . . . . . . . . . 3-7

X. Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

XI. Disassembly, Boosters . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

XII. Assembly, Boosters . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

TC1589 3-1
TC1589 3-2
I. DISASSEMBLY PROCEDURE, BONNET ASSEMBLIES
The following are the complete disassembly procedures for a QBH Ram BOP
assembly. Refer to Figure 4-1 and Bill of Material for item numbers in paren-
theses.

1. Secure the BOP body flange to a mating flange or test stump.

Caution: Care should be taken to ensure that when the bonnets are being re-
moved, the BOP does not fall over.

2. Loosen the bonnet bolts. Unscrew the bonnet bolts until the threads
are no longer engaged in the body.

3. Apply closing pressure to open bonnets.

4. Secure bonnet assembly so the ram change pistons (9, 10) can be re-
moved by using a wrench on the flats of the pistons.

5. Remove bonnet assembly.

6. Remove the six operating cylinder bolts (16).

7. Slide Cylinder Head (3) off of Hydraulic Shell (11, 45) and remove.

NOTE: Do not use hammer to take apart any components or damage will occur.
8. Hydraulic Shells (11, 45), Ram Change Cylinders (8), Operating Cylinder
(6), Ram change pistons (9, 10), and Operating Piston (7) can be re-
moved from the assembly.

9. Remove Ram Guide Pin (13) from Bonnet (2).

10. Remove Retainer Ring (22), washer (14), and all packing from Bonnet.

II. ASSEMBLY PROCEDURE, BONNET ASSEMBLIES

All seals and parts should be lubricated with light weight mineral oil after
cleaning. Do not use grease on seals or seal areas as it may cause seals to leak.

1. Refer to Figure 4-1 and Bill of Material for item numbers in parenthe-
ses.

2. Set bonnet on a pallet or stand with the side towards the BOP body
facing up.

TC1589 3-3
 3. Install the following parts in the connecting rod bore:

• Lip Seal (29) with lip facing towards the face of the bonnet
• Washer (14)
• Retaining Ring (22) spiral locking ring
• Plastic Packing Seal (35)
• O ring seal (25)

4. Install O ring (23) on front male groove of bonnet

5. Install Check Valve (38), Set Screw (37), and Pipe Plug (36) in Bonnet
side. Do not install plastic packing (39). This is used if the primary seal
or the operating cylinder seal is leaking.

6. Install a O ring seal (30) in each of the ram change piston holes in the
body and bonnet.

7. Install Ram Guide Pin (13) in lower threaded hole of Bonnet.

8. Install Wiper Ring (26) in back groove of Cylinder Head (3).

9. Install O ring (27) in front groove of Cylinder Head (3).

10. Install two O rings (31) in Cylinder Head (3) per side for Hydraulic
Shell.

11. Install O ring (32) in the two Hydraulic Shells (11, 45) and insert Hy-
draulic Shell into Cylinder Head.

12. Install O ring (34) on Ram Change Pistons (9, 10).

13. Install O ring (33) on Ram Change Cylinders (8).

14. Install O rings (28) into two grooves in Operating Cylinder (6).

15. Install Lip Seal (24) on Operating Piston (7). Install lip towards backside
of bonnet.

Before installing any of the BOP components all surfaces should be clean of
foreign debris, sharp edges, and nicks. Use flapper wheel to remove nicks and
edges.

16. Apply 1,500 psi Opening pressure to BOP and secure Bonnets to Body
with four 1 3/8" dia. Cap Screws.

17. Follow above steps to install each Bonnet assembly.

TC1589 3-4
III. RAM INSTALLATION (Hydraulic BOP's)
1. Bonnet bolts should be completely unthreaded from body.

2. Apply closing pressure to extend the bonnets and provide access to

the operating piston.

3. Slide ram into place on button of operating piston.

4. Apply opening pressure to close the bonnets.

5. With 1,500 psi opening pressure applied, screw the bonnet bolts in
place.

IV. HYDRAULIC FUNCTION PRESSURE TEST

1. The hydraulic system test shall be conducted on each BOP cavity on
both the open and close side.

2. The test pressure shall be at working pressure of the system(1,500 psi).

3. The duration of the test is a minimum of 15 minutes.

4. If the BOP door assemblies are closed, install the BOP test tool prior to
beginning the following tests, with the exception of the blind cavity.
Performing the following tests with the door assemblies closed on
pipe rams without a test tool installed may cause premature failure of
the ram face seals.

V. OPENING SIDE TEST

1. Connect a test line with an isolation valve, a chart recorder, 0 to 3,000
psi gauge to the open side of the BOP. Function the BOP several times
to remove any possible trapped air in the hydraulic system. Apply
1,500 psi opening pressure and hold. Ensure that the ram assemblies
are in the full open position.

2. Close the isolation valve from the test pump.

3. Bleed off the pressure from the close side. Remove hydraulic line from
the close side of the BOP. Ensure the close side is open to the atmo-
sphere.

4. Record the test pressure and hold the test pressure for 15 minutes. Vi-
sually inspect that there is no fluid leaking from the closed port.

TC1589 3-5
 5. For the successful completion of the test there should be 0-psi pres-
sure drop recorded on the chart recorder.

6. Bleed off test pressure from the close side.

VI. CLOSING SIDE TEST

1. Remove the test setup from the open side and connect to the close
side. Function the BOP several times to closed position. Close the isola-
tion valve from the test pump.

2. Bleed off the pressure from the open side. Remove hydraulic line from
the open side of the BOP. Ensure the open side is open to the atmo-
sphere.

3. Record the test pressure and hold the test pressure for 15 minutes. Vi-
sually inspect that there is no fluid leaking from the open port.

4. For the successful completion of the test there should be 0-psi pres-
sure drop recorded on the chart recorder.

5. Bleed off test pressure from the close side.

VII. LOW & HIGH WELL BORE TEST

1. Install a test pump, isolation valve, chart recorder and pressure gauge
to the test stump. Fill the BOP stack with water. Close all choke and
kill valves.

2. Close the pipe rams with 1,500 psi closing pressure.

3. Applied 200 psi test pressure. Close the isolation valve from the test
pump.

4. Hold the test pressure for 10 minutes while observing for visible leaks.
No leaks or drop in pressure is acceptable during test period.

5. After successful completion of the low pressure test, bleed test pres-
sure to zero.

6. Apply the BOP’S maximum working pressure 15,000 psi to the well
bore.

TC1589 3-6
 7. Hold the test pressure for 10 minutes while observing for visible leaks.
No leaks or drop in pressure is acceptable during test period.

8. After successful completion of the high-pressure test; bleed test pres-

sure to zero.

9. Open the pipe ram assemblies. Install test tool. Close the desired pipe
ram assemblies around test tool.

10. Repeat test procedure as in Steps 3 and 8 for each pipe ram.

VIII. MONTHLY PREVENTATIVE MAINTENANCE

1. Perform the following before starting a new well and at least once a
month if BOP is accessible. Ensure all the bonnet bolts are torque
properly.

2. With the doors closed perform a hydraulic pressure test on all cavities
as described above. Do a visible check to ensure there are no external
leaks.

3. Perform a well bore pressure test as described above. Do a visible

check to ensure there are no external leaks.

IX. THREE MONTH PREVENTATIVE MAINTENANCE

1. With the doors closed perform a bore pressure test on all cavities as
described above. Do a visible check to ensure there are no external
leaks.

2. Open the bonnet assemblies and remove the ram assemblies, as de-
scribed above.

3. Clean and visually inspect all of the ram assemblies, bonnet sealing
surfaces, I.D. bore body sealing surfaces, door seals, bonnet bolts, and
bonnet bolt holes for possible damage.

4. Repair the threaded area on both the bonnet bolts and the bonnet
bolt holes located in the BOP body if necessary.

5. Remove any minor pits from the I.D. bore body sealing surfaces that
could damage the top seal with emery cloth.

6. Inspect the O.D. O-rings of the bonnet seal. Replace the O-rings if re-
quired.

TC1589 3-7
 7. Inspect the bore of the BOP for key seating caused by drill pipe
rotating in the bore. I f any radius of the bore is an 1/8" or greater,
contact Cameron Engineering Department before re-assembly of the
BOP.

8. Inspect the ram assemblies rubber goods for damage. Replace the rub-
ber goods if required.

9. Apply 500 psi closing pressure. Inspect the O.D. operating piston rod
for pitting and scratches. The rod should be replaced if the scratches
or pitting could cause damage to the seals in the connected rod-bore.

10. Re-install the bonnet O-rings.

11. Re-install the ram assemblies per the instructions provided previously.

12. Apply opening pressure to close the bonnets.

13. With 1,500 psi opening pressure applied, screw the bonnet bolts in
place. Torque appropriately.

X. LONG TERM STORAGE

1. Place stainless steel plugs in ports to retain fluid , keep foreign matter
out of unit, and for protecting seals and maintaining their flexibility .

2. Brush rust preventive material on all bores and ring grooves. The rust
preventative material should have a minimum service range of -20°F
to 150°F.

3. Place flange protectors over all flanges and secure in place with plastic
plugs provided with unit or substitute fastener.

XI. DISASSEMBLY, BOOSTERS

1. Remove tubing and fittings.

2. Remove socket head cap screws, lock screw housing, and lock screw.

3. Remove four set screws and pressure relief fitting.

4. Remove cylinder head, piston, and piston ring.

TC1589 3-8
 5. Remove cylinder.

6. Remove socket head cap screws and adapter.

XII. ASSEMBLY, BOOSTERS

1. Install adapter to cylinder head with 5/8" socket head cap screws using
the appropriate lubrication and torque.

2. Thread cylinder into adapter and secure with two set screws.

3. Install o-ring (14) to female groove of piston ring.

4. Install o-ring (13) to male groove of piston ring.

5. Install piston inside piston ring.

6. Install piston and piston ring inside cylinder.

7. Install o-ring (12) to cylinder.

8. Install wiper ring (15) inside booster cylinder head.

9. Thread booster cylinder head to cylinder and secure with two set
screws.

10. Install pressure relief fitting to cylinder.

11. Install lock screw and lock screw housing to cylinder head using 5/8"
socket head cap screws and appropriate lubrication and torque.

12. Install tubing and fittings to hydraulic ports in hydraulic shell and cyl-
inder head.

TC1589 3-9
TC1589 3-10
Chapter 4 - Parts Listings and Specifications

Recommended Spare Parts Usage . . . . . . . . . . . . . . . . . . . . . 4-3

API Ring Sizes and Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Recommended Torque Requirements for Flanges . . . . . . . . . . . . 4-3

Recommended Torque Requirements for Bolts . . . . . . . . . . . . . . 4-3

Single Body QBH BOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

(Illustrations)

4-1/16" 10M QBH Single BOP . . . . . . . . . . . . . . . . . . . . . . . 4-7

(Parts List)

4-1/16" 10M Double BOP . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

(Parts List)

4-1/16" QBH Booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

(Parts List)

TC1589 4-1
TC1589 4-2
Two Years Recommended Spare Parts Listing For Usage for
3-1/16" & 4-1/16" psi QBH Ram Preventers
Part No. Description Single Double Quad
3A-906-200-385 Bonnet Bolt, Hydraulic BOP 8 16 32
3A-906-200-093 Washer, Bonnet 2 4 8
3A-979-035-004 Complete Seal Kit, Hydraulic BOP 2 4 8
3A-906-200-092 Ram Guide Pin 2 4 8
3A-981-192-303 Operating Cylinder Bolt 12 24 48

Table 4-1

API Ring Sizes & Gaskets

Size Pressure Gasket No.
2-1/16" 10,000 and 15,000 psi BX-152
3-1/16" 10,000 and 15,000 psi BX-154
4-1/16" 10,000 and 15,000 psi BX-155

Table 4-4

Recommended Torque Requirements For API 6A Type 6BX Flanges

Using Thread Compound Using #503 Molybdenum

Bolt Size per API Bul. 5A2 Disulfide
Thread Compound
7/8" -9UN 319 188
1-1/8" -8UN 686 401
1-3/8" -8UN 1,281 739

Table 4-5

Recommended Torque Requirements for Bonnet Bolts and

Operating Cylinder Bolts

Bolt Size Using #503 Molybdenum Compound

(f=.07) Ft-Lbs
5-8/" -11UN 68
3/4" -10UN 188
1-3/8" -8UN 739

Table 4-6

TC1589 4-3
TC1589 4-4
 Dimensions in Parentheses are in Millimeters

Single Body QBH BOP

3-1/16” 15,000 psi WP
SD 035299

TC1589 4-5
 36 29 14
42
37
2
38 30

25

22
34 13
33 23
8 42

32 35
11

10

34
33
8 6

32 28

45 31 7
42
46
24
27
28
16

31
42
3

26

16

12

Figure 4-1
QBH Bonnet Assembly

P/N
SK- SD 035317

TC1589 4-6
Parts List: 4-1/16" 10M QBH Single Flanged Top and Bottom BX-155, Two 2-1/16" 10M
Flanged Outlets BX-152, Bonnet Seal Area ST/STL Inlay. API 16A T-20 Nace
P/N 3A-906-101-031
Rev. 01

Item Part Number Qty Description

1 3A-906-200-429 1 Body
2 3A-906-200-426 2 Bonnet
3 3A-906-200-347 2 Cylinder Head
4 3A-906-200-348 2 Housing, Locking Screw
5 3A-981-033-303 12 Cap Screw
6 3A-906-200-053 2 Operating Cylinder
7 3A-906-200-052 2 Operating Piston
8 3A-906-200-054 4 Ram Change Cylinder
9 3A-906-200-055 2 Ram Change Piston, Close
10 3A-906-200-079 2 Ram Change Piston, Open
11 3A-906-200-082 2 Hydraulic Shell, Ram Change Cylinder
12 3A-906-200-083 2 Locking Screw
13 3A-906-200-092 2 Guide Pin, Ram
14 3A-906-200-093 2 Washer
15 3A-906-200-385 8 Bonnet Bolt
16 3A-981-192-303 12 Cap Screw
21 3A-979-035-004 2 Seal Kit
*22 3A-972-343-001 1 Retaining Ring
*23 702645-34-81 1 O-Ring
*24 3A-969-257-070 1 Polypak
*25 702645-32-72 1 O-Ring
*26 3A-969-258-070 1 Wiper Ring
*27 702645-21-82 1 O-Ring
*28 702645-35-82 2 O-Ring
*29 3A-969-259-090 1 Polypak
*30 702645-21-42 4 O-Ring
*31 702645-23-02 4 O-Ring
*32 702645-22-52 2 O-Ring
*33 702645-22-82 2 O-Ring
*34 702645-21-82 2 O-Ring
*35 3A-969-249-001 1 Seal, Plastic Packing
*36 3A-969-503-19 1 Pipe Plug
*37 3A-969-232-46 1 Set Screw
*38 3A-960-002-06 1 Check Valve
*39 3A-960-035-06 1 Plastic Packing
40 211967-01 1 BOP Tag, Open
41 211967-02 1 BOP Tag, Close
42 200492 8 Pipe Plug
43 2231288-02 1 Nameplate
44 3A-313-619-02 2 Handle Assembly
45 3A-906-200-394 2 Hydraulic Shell, Booster
46 200352 2 Pipe Plug

*Item in Seal Kit

TC1589 4-7
Parts List: 4-1/16" 10M QBH Double Flanged Top and Bottom BX-155, Four 2-1/16" 10M
Flanged Outlets BX-152, Bonnet Seal Area ST/STL Inlay. API 16A T-20 Nace
P/N 3A-906-101-032
Rev. 01

Item Part Number Qty Description

1 3A-906-200-432 1 Body
2 3A-906-200-426 4 Bonnet
3 3A-906-200-347 2 Cylinder Head
4 3A-906-200-348 2 Housing, Locking Screw
5 3A-981-033-303 12 Cap Screw
6 3A-906-200-053 2 Operating Cylinder
7 3A-906-200-052 2 Operating Piston
8 3A-906-200-054 4 Ram Change Cylinder
9 3A-906-200-055 2 Ram Change Piston, Close
10 3A-906-200-079 2 Ram Change Piston, Open
11 3A-906-200-082 2 Hydraulic Shell, Ram Change Cylinder
12 3A-906-200-083 2 Locking Screw
13 3A-906-200-092 2 Guide Pin, Ram
14 3A-906-200-093 2 Washer
15 3A-906-200-385 8 Bonnet Bolt
16 3A-981-192-303 12 Cap Screw
21 3A-979-035-004 2 Seal Kit
*22 3A-972-343-001 1 Retaining Ring
*23 702645-34-81 1 O-Ring
*24 3A-969-257-070 1 Polypak
*25 702645-32-72 1 O-Ring
*26 3A-969-258-070 1 Wiper Ring
*27 702645-21-82 1 O-Ring
*28 702645-35-82 2 O-Ring
*29 3A-969-259-090 1 Polypak
*30 702645-21-42 4 O-Ring
*31 702645-23-02 4 O-Ring
*32 702645-22-52 2 O-Ring
*33 702645-22-82 2 O-Ring
*34 702645-21-82 2 O-Ring
*35 3A-969-249-001 1 Seal, Plastic Packing
*36 3A-969-503-19 1 Pipe Plug
*37 3A-969-232-46 1 Set Screw
*38 3A-960-002-06 1 Check Valve
*39 3A-960-035-06 1 Plastic Packing
40 211967-01 1 BOP Tag, Open
41 211967-02 1 BOP Tag, Close
42 200492 8 Pipe Plug
43 2231288-02 1 Nameplate
44 3A-313-619-02 2 Handle Assembly
45 3A-906-200-394 2 Hydraulic Shell, Booster
46 200352 2 Pipe Plug

*Item in Seal Kit

TC1589 4-8
Parts List: 3-1/16" and 4-1/16" Booster, QBH BOP's
P/N 3A-906-200-388
Rev. B
Item Part Number Qty Description
1 3A-906-200-389 1 Adapter
2 3A-906-200-390 1 Cylinder
3 3A-906-200-391 1 Cylinder Head
4 3A-906-200-392 1 Piston
5 3A-906-200-393 1 Piston Ring
6 SS-600-1-4 1 Connector, Male
7 3A-980-059-308 4 Set Screw
8 3A-995-116-173 20 Tubing
9 SS-600-2-4 1 Elbow, Male
10 3A-981-027-303 6 Cap Screw
11 3A-906-200-395 1 Pipe Plug
12 702645-24-22 1 O-Ring
13 702645-33-42 1 O-Ring
14 702645-21-82 2 O-Ring
15 3A-969-258-070 1 Wiper Ring

TC1589 4-9
TC1589 4-10