Chevrolet 30 Series 1967 Service Manual page 389

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Fig. 5 - Free Travel Adjustment
height to brake pedal.
3. Tighten lock nut.
4. Adjust pedal free travel.
CLUTCH PEDAL ADJUSTMENT (Hydraulic)
Two adjustments can be made; pedal total travel
(bumper adjustment) and pedal free travel.
NOTE: The m aster cylinder must be filled to
1/2" below the top of reservoir.
must be free of air.
Clutch Pedal Total Travel
Disconnect the clutch fork return spring.
Bottom slave cylinder push rod and piston by pushing
the slave cylinder push rod to the front of vehicle as
far as it will go (fig.
Pull clutch fork toward rear of vehicle until the
3.
throwout bearing touches the pressure plate release
levers.
Adjust clearance between the slave cylinder push rod
4.
fulcrum ("V" block) by adjusting nut behind it to
proper clearance between fulcrum pivot and clutch
fork (fig. ).
6
DIMENSION
5/32"
7/32"
3/16"
NOTE: This clearance can be checked with the
shank of appropriate diameter drill.
Clutch Pedal Free Travel Adjustment
Adjust clutch m aster cylinder adjustable push rod to
obtain free travel between the clutch m aster cylinder
CROSS SHAFT LEVER
The system
).
6
MODEL USAGE
CLMT-80 with Fuller transmission
E & U-80 only
All Hydraulic except above.
CLUTCHES AND TRANSMISSIONS 7-3
push rod, and the master cylinder piston. This will
amount to / " free pedal travel measured at the center
1 8
line of the pedal pad, just before the clutch push rod
touches the m aster cylinder piston (fig. 7).
NOTE:
This will insure the master cylinder
piston moving sufficiently to uncover the port in
the master cylinder reservoir.
CLUTCH PEDAL-ALL EXCEPT TILT CAB AND
STEP VAN (Refer to Figure 1)
Removal
1. Pull parking brake lever to applied position.
2. Remove bolt at cluch pedal push rod lever (1), then
remove lever from pedal shaft (5).
3. Hold pedal pad with one hand and slide pedal and
shaft assembly outboard enough to clear pedal stop,
then allow return spring (or overcenter spring) to
pull pedal up high enough to unhook spring from pedal
arm.
Fig. 6 - Adjusting Slave C ylin d er Push Rod
F ig . 7 - C lu tch Pedal Free Travel
CHEVROLET TRUCK SERVICE M ANUAL