_~ ~ "Ytl A /2.

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(J, ISO .l( /3 ~ 3i~YS 111 Iv] !

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,1"1 A 4(., J ~V
CA C. GO 1"'1 VLt COJJt LrG"1\)

INSTRUCTIONS
for operating' and maintaining the

JONES - SHIPMAN
Model 540
6" x 18"
HYDRAULIC SURFACE
GRINDING MACHINE

A. A. JONES & SHIPMAN, LTD.

Head Office. and Works:
NARBOROUGH ROAD SOUTH, LEICESTER, ENG.
 l
1
I
: .~ "", :.~, f' Page
Specification ',;; ",' 3

I
"-., "

Capacity Chart 4
Equipment 4
Installation and Maintenance 5
Wiring Diagram .. 5
Constructional Features
Control Chart
Table Traverse Arrangement c:. ,

Cross Feed Arrangement .

'!'
"
l
.. 8-9
'.
Wheel head Drive and Belt Tension '";'.
10
Wheel Spindle (Plain and· Ball Bearing) 11
Hydraulic System 12-13
Vertical Wheel Feed (Hand) 14
Power Rise an.d Fall to Wheelhead 14
Wheelhead Automatic Downfeed 15
Lubrication 16-17
Automatic Lubrication 18
Base Plan 19
Wheel head Service Scheme 19
Wheel Balancing 20
Lifting Arrangement inside rear cover

,.l:
The object ill producing this handbook is to jji'i>~the,
.
operator concise
',.~

details of the method in zvhich the machine jUllctiolis, together with full
instructions for the care and attention which is necessary to ensure
maxilllulIl efficiency with trouble free running.

Ollr endeavour is to supply machines that embody the latest

developments in machine design and therefore whilst the details given
in this booklet were correct at the time of printing, modifications and
improvements may since have been made.

Should this boohlet be destroyed or lost, a further copy will be

Working surface of table 18x6/1
Longitudinal traverse of table, hand and hydraulic (maximum) 19/1
Cross-traverse of table, hand and hydraulic (maximum) 6!"
Vertical traverse of wheelhead (maximum) 11/1
Table traverse speed range per minute 5 to 40 ft.
Cross-feed range per stroke at each reversal .01/1 to .07/1
Size of grinding wheel 7/1 xt/l X lt"
Speed of wheel .. 2,800 r.p.m.
 Standard Equi"pment
Plain bearing wheelhead
Two grinding wheels 7/1 Xt/l X 1t/l bore (one for general use and one for grinding
cast iron).
Two sets of grinding wheel flanges.
Nut for easy withdrawal of wheel flanges from spindle.
Mandrel for balancing complete wheel flange assembly.
Table mounted wheel truing attachment, without diamond.
Table and wheel guards.
Oil gun, spanners and wrenches.
Two special 'Polystrene' packs for dispatch and retention of grinding wheel
assemblies and all standard equipment.
Motors and electrical control gear suitable for operating on 220/250 and
380/440 standard voltages, 3 phase, 50 cycles supply.

Extra Equipment (to order)

Motor-driven dust control unit, standard voltage
Radius and angular wheel truing attachment.
Permanent magnet chuck, size 14/1 X 6/1 (other sizes to order).
Plain vice admits work 2£", width of jaws 4/1.
Swivel vice, admits work 2 fo /I, width of jaws 4/1.
Universal three way vice, admits work 2 fo /I, width of jaws 4/1.
Sine vice admits work 5r', width of jaws 4/1, maximum swivelling angle 55°.
Precision static balancing unit for wheel balancing (with or without stand).
Self-contained motor__driven
,"'!_I"______ , ___ 1___ 1
l."_~ ! __
~.LL __
coolant
f _____
~L
supply.
 . :,1, »:~;~:':,
ft-·'5!/: ,
Iri~tallatiQti;:~:~and. :ttaintenance
.n'
'''-3 ,.
Installation {). ":: ~,~ ~ ",
Although this machine will tur~~o~1t' r!;las~nable work on inferior foundations, the
stiffer th~ foun?ation, the bette~~I.I.~be the de~ree of finis~ obtained. ~he stabil!ty
of the dlmenslOnal accuracy gf ~H.e .work will also be Improved with supenor
foundations. J~;:~;u:::;:,.~::. ";' ;' ,..'
~;';,; "" ,
It is recommended that the ~h¢rHefbund~ti6fi.:'block sh," '~xtend'it'least 6"
beyond the base of machine (;-ee; p~g.y. 19 for base plan) an, 6\ild' be 2ft. deep if
possible. Machine should be 1f?v,~";C~c:i.)rr.!bo:1:h longitudiI\,al and transverse directions
by means of iron w~dges plac'e4:~~rl'd.~r.t~~ two pads~afthe front corne~sand the
pad at rear of ma~cWlpe,; A~jlE~crS,lqpj§mtl:tf)ey~1 p~.abe.d upon the table should be
used for checking'!t1i~;Iev.eJillt~!t.. :,../i" ". ,.,. J', ' '
Iron wedges sho~i.~;~~~~~~~~~&.~;X~1~i;h;'i;f.'P;ds betwee~ the front and rear
pads. The wedg~~'\n'd ~<Sh!~~, ~~~~shoul~'tfteh be grouted III to prevent move-
ment of the wedges and glve~m£lf~li:sed sl!PP}'Jtt.

Wi<ing ;W:'}:l~:~it
Care should be taken to see 'th~~,tlie' motors are wired to rotate in the correct
directions. Th~'wheel should ~1~~y~;'i9ta:te in a clockwise direction when looking
from front oftnachine and the':.B1\rnr,fuq,tor:as indicated by arrow (See page 13).
, .,M~)rl.'" . .
• : '~!fF.:f;,:,-:::,';':':' .
Startmg L?'·.:.;.:i I'd.;" '.';'.:

When starting up the machine in the morning, see that the table speed lever (A) on
page 8 is nearly closed to givei a sIpw lrate of travel until the oil has circulated
thoroughly.

UHI( REMOVED
FQ~ REMOTE
~

lI1'HVOLT1oGE lIGlfTIHi

l:mQU~~f'~
[:::.:..............]
 General,I'nfo'rm'ation and
l
I
I

Instructional Features
The Worktable
has a working surface of r:s±'~~r':'jThree tee slots with 2t" centres for til bolts
are providea for clamping fi~tupes.'" '~,
t .~ ,1.. " , '..'

~I
Table Traverse '" ,)" '
....... ;tcf"'''''! Ii it "f • \: .. /1 !J\

is arrangedi4'C?r hydrauli~,~" ""9~t;a:tion :illld I'eitner can be operated at will,

Adjustable dogs dete(mine·th~~ik:&f stroke, '
. '. '~" :\1. "", ~:'~l~;. ":, '~"~'1,' .. ,',

The table travels Oil'fdne vee and one.:flat; slideways are automatically lubricated
from the hydraulic system, . ',;,
:\ . :~';4~~,-.< . . . l" ••

The table speed is variable ~rom 5 to 40 ft. 'per minute, aIfd is controlled by a
lever which also provides an ~~ergency stop to :the table in any position.
\, . ..:

The Cross Saddle

or carriage, carries the complete worktable 'uni~ and is mounted on two vee slide-
ways. The automatic cross-feed is applied by means of a ratchet and pawl
hydraulically operated. The cross-feed and table traverse may be stopped at
any predetermined position by trip dogs or hand b,uttons. Hand traverse is also
provided and a fine cross feed knob enables feeds of :0001" to be applied.
:':~~>\t" . "

The Wheelhead
The spindle runs in plain journal and thrust bearinl5'l' and is hardened, ground
and tapered at the front end to receive grinding wheel flange plates. The bearings
are diamond bored. ' ,;""
~~\., .
't~, "a, j.:
A constant flow of oil through wick feed ensures a"Clean supply. The wheel is
mounted on an adaptor sleeve which can be readily withdrawn and mounted on
the balancing mandrel supplied as standard, and adjusted for balancing by means
of weights provided with flange plates. "',
The drive to the spindle is from a one h.p. constant speed motor, fitted on vibration-
proof rubber mounting and mounted inside the column on the wheel headslide,
and is thus protected from dust. A wide endless flat belt is the driving medium,
with provision for adjustment when necessary. The wheelhead assembly unit
is carried on long vertical slides on which are mounted accurately ground
rods running on pre-loaded ball bearing rollers which are eccentrically mounted.'
The control handwheel has an adjustable dial graduated in .0001" divisions, and
~hP finp fppcl ~diustments are in increments of ·0001",
 Control Chart I
I,
I
'i
,
I
8
Iii
I
9

15

l. Dwell control and cross-feed 8. Table traverse speed control

cut-out. lever.
9. Table reversing lever.
2. Table traverse handwheel.
10. Micro cross-feed knob.
3. Cross-feed traverse handwheel. 1l. Table s.top button.
4. Fine cross-feed engaging knob. 12. Table start lever.
5. Auto cross-feed reversing 13. Cross-feed stop dogs.
thumb lever. 14. Fine vertical wheel-feed knob. I
 II a
:,;~~}.'
, ·,1 .... ·:'

Table Traverse. Arrangemehf"

The table is arranged for both hydraulic and hand 9peration. The t~ble speed 1
I
when hydraulically operated is variable froinS ft. to 40 'ft. per minute. This is
controlled by lever (A). When in position shewn in dotted outline on illustration I
this is closed and the table can be traversed by hand, usii}g handwheel (P). This
handwheel must be pushed inwards for hand traversing arid pulled outwards for
automatic traverse. . . , ' , . ..
·i'
I
On turning lever (A) in direction of arrow, the t'abk willtr~,:erse an.d'reverse at
any speed up to the maximum, depending upon'the, pOS~ti6il of the ·lever. The
table can be stopped at any point by the use;:of thisflever. Trip dogs determine
the: length of travel which knock over reversing lever at the end of each stroke.

If required, the tabkcan be traversed past the dogs by means of lever (B) on the
table reversing lever (C), see illustration below. To trav,erse table past the dogs
in the opposite direction, press the other' 'lever outwards oh the table reversing
lever. .

Lubrication. The vee and flat slideways "to the tabletraver~eare'I:Ubricated

automatically from the hydraulic system. It is essential to note that if the hydraulic
pump is not switched on when traversing the table by hand, rio oil will reach the
table slide. Consequently the table hand ,motion becomes. sluggish, and serious
damage may be caused to the table slideways. '

'\\.: , CROSS FEED ARRANG~MENT,

"\",

H~lnd Operation. The Cros,sfeed can be operated by haridl,lsing handwheel (D)

which is graduated in .001" divisions. Thumb lever (E) should be in, neutral
position. For grinding',stepped work, where accurate ·cro.s~~etting is re<;luired, a
fine. cross feed adjustment
is fitted; the control knob
having divisions represen-
ting .0001".

To engage:~ First turn'

,knob (E) to neutral P08-
l);fW\. Turn the fine feed
'C'o~t~ol knob (T) to zero
and engage the clutch by
screwing up the star knob
(8) on the inside of cross-
feed handwheel. To apply
fine cross feed, turn knob
(T) the amount required.
 Automatic cross-feed.
First see that star knob (8) is slackened. The amount of automatic cross feed
"~\~ft can. be applied ranges .from .01" to ..07". To. adjus~ this, open cover (F)
oy pressIng button (G): ThiS reveals the ltnk motion which can be set to give
the amount of feed required. Unscrew knob (H) and move in slot. If the
maximum feed of .07" at each stroke be required move knob to extremity of slot
(in direction of arrow).·To decrease feed, move towards centre.

The cro;s '!feed will be completely shut off when lever (J) is in position (as shewn
in dotted outline in illustration) and the crank disc will not rotate. As lever is
opened in opposite direction to arrow as shewn in illustration, the crank disc will
be allowed to rotate and apply feed.

The movement of the lever (J) also introduces a short dwell period to the longi-
tudinal traverse movement of the table to allow time for the cross feed to operate.
The lever (J) should be set so that the cross feed is applied as smoothly as possible
without undue dwell.

When the table is required to feed forwards to the front of the machine, turn
knob (E) clockwise and to feed towards back of machine turn anti-clockwise.
\
The automatic cross feed may be stopped at any predetermined position, when
feed is either backwards or forwards by means of trip dogs (K). It can also be
stoDDed bv ores sin!! knob (L). In both cases the machine will sto both cross
 l
1
Wheelhead 11

Ball Bearing Backslide Adjustment and Belt Tension

The wheelhead assembly unit is carried on long vertical slides on which are mounted
accurately ground bars running on ball bearing rollers which are eccentriqally
mounted. These rollers are carefully adjusted before leaving our Works and
under normal circumstances no further attention need be given. If eventually
it does become necessary to make adjustments, this should only be carried out
by a skilled operator as this is a delicate operation.

To adjust the rollers, slacken the two locknuts (V) in anti-clockwise direction
and turn the square headed bolt (W) clockwise until contact is made by the rollers
on to the ground bars. Care must be taken to ensure that no excessive pressure
is applied as this may cause serious trouble and upset the sensitivity of the vertical
traverse. When adjusted, tighten locknuts (V).

Belt Tension.
The drive to the wheelhead is by means of an endless flat belt. To adjust the
tension, remove the lower panel and raise or lower the wheelhead until access
can be made to the two
nuts (X). Slacken these
and also the two nuts (Y).
After slackening these nuts
the motor frame can be
adjusted by the two nuts
(Z). Tighten all nuts when
correct belt tension is
applied.

Feed SC1:ew.
Feed Screw lubrication
must not be neglected
otherwise rapid wear will
occur.

If allowed to wear right

through, the wheelhead
will drop.

Check nut for axial play

periodically, every six
months at least, and if
play exceeds .060" send
for a replacement nut.
 Plain .Wheel Spindle
The Plain Wheel Spindle is of hardened steel, ground and tapered at the front end II;
to receive grinding wheel flanges. An oil bath ensures a constant flow of oil I '
to the bearings. An Oil Level Glass is provided and the oil must always be between
levels marked when spindle is stationary.
Oil should be topped up when necessary by removing the knurled screw on top
of the cover. It is recommended that the oil bath be drained, cleaned out and
filled with oil at least every six months. Remove draining plug underneath the
wheelhead to drain.
On leaving the works, the thrust is correctly adjusted. If however it becomes
necessary to re-adjust due to wear, remove pulley (B) with the extractor provided,
adjust thrust by slackening grub screw (C) and rotating thrust ring (D) clockwise.
The correct clearance is .0004", with the wheelhead cold, and can be checked by
placing the base of a .0001" dial indicator on the table with the probe touching
the front spindle end and moving the spindle endways.
L~ck the grub screw (C) lightly to avoid damage to threads of (D) a'nd replace
pulley (B).
N.B.-There are 3 grub screws (C), only the accessible ones should be locked,
the others are alternatives in case locking ring (E) is rotated when main bearings
are adjusted.
For recommended lubricants, see page 17.

A i I
lji
'i
1,1

j,
C

Ball Bearing Wheel Spindle (to order)

 Hydraulic System
l
Patent 549936

The hydraulic pump unit is self-contained and is mounted on flexible mounts

to insulate the unit from rest of the machine. The pump is connected to the
valve and cylinder blocks by means of two pipes only. No attention is necessary
to the valve and cylinder blocks and apart from chain tension and oil, no other
adjustments are required.

The oil pressure operates at a maximum of 120 lbs. and is maintained by a spring
loaded plunger (Q). It is unlikely that this will require any adjustment, but if
necessary this should not be carried out without the use of a pressure gauge.
Increase above the maximum may result in serious damage to the pump.

If the table over-runs the dogs excessively and causes a slight thump or stickiness
at the end of each stroke, adjustment should be made to the screw beneath cover (Z)
on page 9. Dnder normal circumstances, no adjustment should be necessary as
this is set before leaving our Works. The adjustment should be carried out very
carefully as incorrect setting may affect the automatic cross feed arrangement.
When correctly adjusted, see that the screw is locked in position by the locking nut.
Extraction of air from the hydraulic system is accomplished automatically during
running of machine. In case of an obvious accumulation of air, giving jerky
running at initial starting, automatic clearance of air may be expedited by
allowing the table to traverse completely its full stroke once or twice each way.

Changing Oil.
The hydraulic oil should be changed at least every twelve months. To change
oil, remove 'front cover on base of machine. The tank unit should then be with-
drawn completely from the machine base. To do this, remove the flexible piping
from the inlet and outlet valve connections (D). The tank ,is then free to slide
out and drain. The lid bf the tank can then be lifted and the residue in the tank
cleaned out.

The tank should be perfectly clean before replacing. Screw flexible pipes securely.
Careful attention must be given to see that the pipes are replaced correctly.

The tank should then be filled (approximately 4 gallons) in flap (T). Dse 'only
the oil recommended on page 17. The oil should not be lower than the oil level
mark at (S) on the gauge tank, and it is recommended that this be checked each
week, and if necessary topped up with oil. For this purpose the front cover need
 ·!

Hydraulic System

II
I

The correct positions for the hydraulic pipes are as illustrated.

Pressure. Connect from pump connection (P) nearest the motor to saddle
connection (P) at rear of machine.
 1
I
I
Vertical Wheel Feed (Hand) !
Is operated by a hand wheel (S) which has an adjustable dial graduated in .0001/1
divisions. There is no necessity to calculate the final reading, simply slacken the
locking screw (Z), turn dial to zero and lock dial in position. A fine feed knob (T)
I
is fitted which applies a feed in steps of .0001/1. To engage the fine feed, press knob
down; to disengage, pull out. ',
To raise wheelhead, turn either the handwheel or fine feed knob in a clockwise
direction. '
I
POWER RISE AND FALL TO WHEELHEAD
(Optional Feature)
This mechanism is operated
by an electric motor coupled
into the bottom feed shaft.

To engage the power traverse,

place the selector lever (U)
into its appropriate gate and
hold there until the desired
position of the wheelhead is
reached. The lever can now
be released, whereupon it will
spring back to the centre, or
off, position. To feed the
wheel head by hand, the lever
must be moved sideways and
downwards into the gate
marked "Hand."

For safety purposes, a limit

switch is fitted inside the
Column to prevent over-run
only in the upward direction;
therefore, when power tra-
versing downwards the Stop
(V) must be set on its slide in
such a position that it contacts
the trip detent (W) in the side
box just prior to the lowest
safe clearance position of the
wheel relative to the compon-
ent. This detent (W) will then
switch out the power feed and
thus prevent over-run damage
 WHEELHEAD AU,TOMATIC DOWN-FEED
(Optional Feature) l
!
When power rise and fall to wheelhead is
also supplied' ~peration of this feature is
effected by placing ~he Selector Lever (D)
in the "Hand" gate of the Control Box. Next,
snap the pawl located under cover (Y) into
the feed ratchet whrL The Engaging Lever
(E) should then b'e 'lifted to its full extent
upwards and the wheelhead will now feed
down at each R.H. reversal of the table
stroke. The amount of ratchet feed on the
pawl can be adjusted by the Screw (D)
adjacent to the pawl (under Cover 'Y').
There are six feed steps of .00005" each, with a range from .00005" to .0003"
A micrometer head is attached to the Stop (V) in the wheelhead, and this should
be set to contact Trip Lever (A) which in turn knocks out the engaging Lever (E)
and so stops the auto Feed.
NOTE: the Trip Lever (A) can be snapped down clear of the micrometer head
when power traversing alone, and without the auto feed being in use.

There are several methods for 1

setting the depth of cut, etc., on I
I
I

J
the work, one example of which
is as follows:- Feed the grind-
ing wheel down un;til its peri-
phery just touchesj~the compon- :/
ent to be ground, and then adjust
the micrometer head to trip out
the auto feed at this point. Note Ii
I
thimble reading on the head and
unscrew to the amount of depth
of grind minus .002" and proceed
to operate machine with feed
lever (E) engaged.
Accuracy of trip out of Lever (A) is 0 to plus the amount of feed set on ratchet
pawl by the Screw (D) under Cover (Y):
e.g .. 00005" feed set on pawl =0 to+.00005" on trip lever (A).
e.g .. 0003" feed set on pawl =0 to+.0003" on trip lever (A).
Altho~gh it is not usual for the ~utomatic do:vn feed to be fitted without power
 MOTORS: BEARINGS ARE PACKED WITH GREASE AND ARE
DELIBERATELY LEFT WITHOUT GREASE NIPPLES
TO AVOID OVER LUBRICATION. BEARINGS.SHOULD /OIL FILLER FOR
BE INSPECTED BY MAINTENANCE ENGINEER'S WHEEL SPINDLE
AFTER 2,500 HOURS. REPACK WITH GREASE
IF NECESSARY. FINE FEED KNOB REMOVE
SCREW (OIL WEEKLY)

OILER FOR REAR END

OF FEED SCREW BEHIND VISIBLE OIL GAUGE FOUR OIL NIPPLES FOR
CROSS SADDLE (OIL BALL BEARING ROLLERS
WEEKLY) (OIL WEEKLY)

·9
OIL NIPPLE FOR
HANDWHEEL SHAFT~.
(OIL WEEKLY) ~ OIL NIPPLE FOR CROSS
SCREW NUT (OIL DAILY)

OIL HOLE ON EACH

APPLY OIL TO LEAD
END OF CRANK LINK
SCREW OCCASIONALLY
OPEN COVER FOR-
ACCESS (OIL DAILY) OIL NIPPLE/
(WEEKLY)

TWO OIL NIPPLES ON ,,-PLUG FOR DRAINING

HANDWHEEL FOR CROSS OIL IN TROUGH
SCREW THRUST BEARING
& HANDWHEEL BEARING _____ TWO OIL NIPPLES
(OIL DAILY) (On:"WE,EKLY)

.COVER FOR ACCESS

TO PUMP TANK
FILLER

TWO OIL NIPPLES AT 7777/"7// //77~/ / / . "/ ' / ~

REAR OF M/C. (OIL
WEEKL-Q WORM BOX FILLING ORIFICE
RLL TO LEVEL OF PLUG AT \ '.
REAR OF M/C (OIL WEEKLY)

,.,.~... --~~.,.. -,----,-----------

 , '
Lubricants
These machines are run in our work.s on the following types of lubricant:-

Supplier Grade

Hydraulic Propulsion Systems Mobil Oil Co. Ltd. Vacuoline,. ,

1405 Je-dl.f ) 2t
. Oil Nipples Mobil Oil Co. Ltd. Vacuoline .
1409 Vtfrc.ct 3 S
------------------------~----------------------~--------~» .>.

Wheel head Spindle Lubrication

These Spindles are adjusted to run in our Works on Mobil Company's D.T.E .
0
.Light Oil at a temperature of 140 Fahrenheit as measured by a thermometer
inserted through the oil filler in the top of the Wheelhead.
Due to the original new state of the Wheelhead and possible changes in ambient
temperature, it may be found that during the first few months of service, the
temperature tends to exceed 1400 Fahrenheit. Should this be the case, sufficient
Kerosene should be added to bring the temperature down to approximately 1400
Fahrenheit, subject to a limiting mixture of 75% Kerosene and 25% D.T.E.
light oil.
As the period of usage progresses, the Wheelhead temperature may tend to fall,
in which case it should be restored to as near 1400 Fahrenheit as possible, by using vj'
less Kerosene.
-
-r: /) t(;;>
I C,
c'"
01
/1/ Dl' J? '
/ /(11)1 VUif'i11
. --- - -- . - --7
LUBRICATING INSTRUCTIONS for machines fitted with Power Operated
Rise and Fall of Wheelhead Slide and Automatic Down Feed

Points "A" 3 shots of oil

every 100 hours.

Points"B" 3 shots of oil

every 50 hours.

Maintain level of worm

housing to plug "F,"
check monthly, and reple-
nish if necessary through
filler "C."
(Use Vacuoline 1409).

Maintain level of clutch

box to plug "E" and reple-
nish if necessary through
filler "D," check monthly.
(Use Vacuoline 1409).
 JOHd-cfltipman~ ELECTROMATIC
MULTI·STATION AUTOMATIC LUBRICATORS
':.r

The Model 540 Surface Grinder can be fitted with the Jones-Shipman "Electro-
made" Lubricator which requires practically no attention; working on a simple
mechanical basis, its moving parts being constantly submerged in oil are subjected
to very little wear.
The oil container is of adequate dimensions, holding sufficient oil for about 100
working hours under normal factory conditions. When fitted to the standard
machine, 4 points receive automatic lubrication:- Vertical wheel-feed handwheel
bearing; Crossfeed nut; Vertical lead-screw and Vertical lead-screw bearing.
rnl - ---- -~ --~ . . ~ .. "f ;"11 ;" rlp1h,,,,.prl "t thp. rorrp.rt time. and the onlv attention
 Service Scheme
on Model 540 Grinding Wheel head Spindle Bracket Units
(Plain and Ball Bearing Types)
".'

In order to ensure that a customer's pro9.u~tion is not retarded, we have inaugurated

a Service Scheme whereby we can supply a fully reconditioned (as new) wheel
spindle bracket unit from our Service Pool in exchange for a customer's existing
Grinding Wheel Spindle bracket unit which is in need of overhaul. Delivery
of a Service Wheelhead can be effededjn 2-3 days whereas, under prevailing
conditions, it may take 2-3 months to completely overhaul a wheelhead of either type .
. In connection with the Scheme there are three points we wish to make clear;-

1. We reserve the right to refuse to accept any wheelhead returned under this
Scheme should it be too seriously damaged or worn to warrant exchange.
2. It should be specially noted that the wheel. spindle bracket unit ONLY should
be returned for exchange, i.e. existing guards, flanges, etc. (which are inter-
changeable) must be retained, as these are not supplied with the replacement
unit.
3. Important. This Scheme does not apply to the older type wheelheads
carrying split thrust collars.

We feel sure our customers will readily appreciate the advant~es of this Scheme
imd we are able to offer this service for a nominal sum, which is the average figure
for reconditioning a wheel head of the appropriate type. .'
SERVICE DEPARTMENT,
A. A. JONES & SHIPMAN LTD.
NARBOROUGH ROAD SOUTH,
LEICESTER.

Base Plan

=",
N

46\ENGT nF TAR"
"
I

" - - - r - - - r - - - - - - t - - - - - - - - r - - i - - - ' -..•.................J

i

'---'-.,-L-----;:-3/4-:-·"---1
'-Lb
' / I ,,'
-~~")
3," 11".' ,,"
---'--;;~ L74. _ _ _ _......u
1?OLQ. . _ _ _7_'4-1-1-f.-E-
'7-'-.11----
3
YI6DIA.HOLE'

~ CR05SFEED
 c •

Wheel Balanc:i ng
The external grinding wheels are mounted on flanges which can be
readily withdrawn from the wheel spindle. Balance weights or wedges are fitted to the
wheel flange, and it is essential that the wheel is properly balanced by means
of these wedges· before the sleeve carrying the wheel is fitted to the wheel spindle.
To fit a new wheel on to the sleeve, unscrew locknut which has a left-hand thread
and withdraw flange. Remove existing wheel and fit new wheel on to the fixed
flange. Refit flange and screw locknut tightly.
The ensemble should then be fitted on the taper of the balancing mandrel
supplied and placed upon a balancing tool for preference or parallel blocks. The
wedges should then be loosened and moved until the wheel is perfectly balanced.

To Balance the Wheel

Proceed in the Following Manner

A. Securely lock wheel on to flanges-fix

balance weights diametrically opposite.
(See Fig. 1).

B. Dress wheel.

C. Remove assembly from wheelhead and.

mount on Balancing Mandrel-·place, on
Balancing Unit, and allow to turn until
it stops, then mark top centre of wheel.
(See Fig. 2).

D. Move Balance weights to 90° from Mark

and diametrically opposite. (See Fig. 3).

E. Move weights equally towards mark

approx. t in. at a time llntil assembly
remains static in any position.
(See Fig. 4).

'F. Remount assembly on to wheelhead and

redress wheel before putting into opera-
tion.
Lifti ng\Arrangem ent

If this Machine {s lifted OTHER

THAN AS SH~WN ABOVE, no
responsi~ility wm· be accepted by