TM 5-3810-300-24 & P2
3. A further check can be made to determine whether the piston primary cup has cleared the bypass port. After cycling
the clutch several times, release the clutch pedal and remove the cover from the master cylinder fluid reservoir.
Apply the clutch again and upon release the fluid should spurt through the bypass port and be visible within the fluid
reservoir.
4. Retract the slave cylinder until the piston bottoms and the shortest cylinder length is obtained. Set the crank so that
it is approximately 1/2" behind the vertical centerline. Adjust the yoke so that the yoke pin can be inserted into the
crank without changing the slave cylinder piston position. Turn the yoke locking nut into the yoke so that the yoke is
locked to the piston rod and the length is fixed.
5. Position the clutch pedal adjusting lever on clutch shaft so that the adjusting screw can be located with approximately
equal adjustment in either direction. Set the adjusting screw to obtain 1/8" clearance with the crank as shown.
NOTE
THE RELEASE YOKE MUST BE IN CONTACT WITH THE BEARING CARRIER WEAR PAD AND
THE RELEASE BEARING MUST BE IN CONTACT WITH THE RELEASE LEVER WHEN MAKING
THE 1/8" CLEARANCE ADJUSTMENT.
INSPECTION - CLUTCH ADJUSTMENT. (Illus. 4-44).
1. Remove the inspection plate from the bottom of the clutch housing. With the proper clearance set, depress and
release the clutch several times and check the travel of the release bearing. Then position the release bearing to
obtain exactly 1/8 in. clearance. When the clutch linkage is properly adjusted the clearance will be zero and the
slave cylinder will be adjusted per Step 4. If readjustment is required, refer to Steps 4 and 5. Install inspection plate on
bottom of clutch housing and road test carrier for proper clutch operation.
IN-SERVICE. (Illus. 4-44).
1. The 1/8" clearance between the adjusting screw and crank and the clutch pedal free travel will diminish as the clutch
linings wear. If the clutch pedal free travel reduces to 1", the 1/8" clearance must be reestablished to avoid clutch
slippage and short clutch life. Adjustment of the clutch pedal linkage should be done as indicated in Steps 4 and 5.
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