Clutch Adjustment; Washing Engine Clutch; Clutch Linkage Adjustment; Clutch Removal - Allis-Chalmers HD-5 Manual

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bottom of the hand grip on the clutch operating
lever.
Repeated adjustments at short intervals may be an
indication that the clutch adjusting ring locking
screw is not tightened securely and is allowing the
adjusting ring to turn out of adjustment during
operation. Frequent adjustments may also be an
indication that the facings on the driven plate are
worn out. A new driven plate assembly must be
installed because the facings are bonded to the
driven plate and are not serviced separately.
C. Clutch Adjustment.
1. Remove the clutch inspection cover from the
upper right side of the clutch housing.
2. With the clutch disengaged, revolve the
engine until the clutch adjusting ring locking
screw can be reached through the il)spection
hole.
3. Loosen the locking screw but DO NOT RE-
MOVE IT. DO NOT LOOSEN THE TWO
SLOTTED SCREWS.
4.
Tighten the clutch by turning the notched
adjusting ring clockwise with a large screw-
driver or short pry bar until the proper ad-
justment is obtained. Moving the adjusting
ring 2 or 3 notches is generally sufficient.
5.
Tighten the adjusting ring locking screw
securely. Attach a spring scale to the clutch
operating lever (attach scale just below the
lever hand grip) and weigh the pull required
to engage the clutch. When the clutch is
properly adjusted, a maximum pull of 50
pounds is required on the operating lever for
its engagement (engine running at high idle).
6. Replace the clutch inspection cover.
D. Clutch Linkage Adjustment.
The engine clutch operating rod should be ad-
justed to give a clearance of 1/4" between the
front of the clutch operating lever (lever in its dis-
engaged position) and the angle on the left rear
fender used for attaching the floor plates.
Adjust the clutch operating rod by turning the front
adjusting yoke to lengthen or shorten as required
to obtain the 1 / 4" clearance between the operat-
ing lever and angle.
E. Washing
Engine
Clutch.
Oil leaks or over-lubrication of the clutch shifting
sleeve bearing may cause the clutch facing to be-
come coated with oil or grease. This will cause
the clutch to slip even though
it
is properly adjusted.
In this event, the clutch must be washed.
1. If a drain plug is installed in the bottom
(front) of the engine flywheel housing, re-
move the plug and drain the clutch and fly-
wheel housings. If a drain plug has not been
installed in the housing, this step is unneces-
sary.
2. Re-install the drain plug in the bottom of the
flywheel housing. Remove the clutch inspec-
tion cover from the upper right side of the
clutch housing.
3. Pour cleaning solvent into the housing until
the level is 1
1
,4"
below the clutch shaft. Install
the inspection cover and operate the engine
at low idle speed for approximately
5
min-
utes with the clutch disengaged.
4. Stop the engine, remove the drain plug, and
~
drain the solvent. If the solvent is excessively _
dirty, refill the housing and repeat the wash-
ing process.
CAUTION, LUBRICATE THE
CLUTCH SHIFTING SLEEVE BEARING THOR-
OUGHL Y AFTER THE CLUTCH HAS BEEN
WASHED AND THE HOUSING DRAINED
AS THE LUBRICANT WILL BE WASHED OUT
OF THIS BEARING IN THE WASHING PROC-
131
ESS.
5. Operate the tractor with no load or with a
light load in low gear for a short period
(until the dutch dries) to prevent slippage
due to solvent on the clutch parts.
F. Clutch Removal.
1. Remove both brake pedal pads from the
brake pedals and remove the front and rear
floor plates.
2. Remove the yoke pin connecting the geor
shift locking plunger operating rod to the
locking plunger assembly.
3. Remove the yoke pin connecting the clutch
operating rod to the clutch shaft control lever.
4. Remove the four "U" bolts, connecting the

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