Chevrolet 10 Series 1968, Service Manual

Page: 90 / 713

BODY IB-23
6. Repeat brushing operation.
7. If a cleaning ring should form, the entire area of the
assembly which is being cleaned should be thoroughly
brushed and gone over lightly with the solvent.
CONVENTIONAL CAB
Seat Replacement
NOTE:
Seat with slide adjusters and seat back
can be removed as a unit.
1. Remove four cap screws and washers which attach
each seat to cab floor.
2. Tilt seat back forward; then lift seat assembly from
cab.
3. Seat adjuster can be removed from seat after disen­
gaging end of seat return spring and locking remove
rod and four cap screws and washers attaching ad­
justers to seat.
4. Install seat adjusters to seat finger tight with eight
attaching cap screws and washers.
Adjustment
Seat is provided with two adjustments. A lever at left
of cab for positioning seat "F o re” or "A ft." Push down
on lever to disengage seat position lock. The release
action of right hand adjuster lock may be adjusted by
kinking the locking rod.
NOTE: A minimum clearance of 7/16" should
exist between the seat back and gas tank.
LEVEL RIDE
Adjustment
To get full benefit from the optional level ride seat,
proper adjustment is of primary importance.
Back Rest Adjustment
To adjust back rest angle depress top of seat back and
move to desired position.
Fore and Aft Adjustment
Any point within the 4" travel may be selected by mov­
ing lever B, Figure 58, toward right hand side of truck to
disengage seat lock.
Torsion Bar Adjustment
The ratcheting adjuster lever (C, figure 58) regulates
the amount of weight the seat will support. Proper ad­
justment places the up and down travel of the seat sus­
pension of the midpoint, limiting the occurrence of bot­
toming or topping of the suspension.
Proper adjustment is indicated by the ride level indica­
tor, Figure 59, which is located behind left frame up­
right. Position 3 in Figure 59 indicates correct adjust­
ment (tip just flush with forward edge of upright). If seat
is too stiff, the indicator will be in position 1; if too soft,
in position 2. Adjust for position 3 by moving lever C,
Figure 58. Direction of ratcheting action may be changed
by moving control at base of lever. Turning lever clock­
wise increases the amount of weight the seat will support.
Service
Numbers in following procedures refer to Figure 60.
F ig . 58 - Level Ride Adjustments F ig . 5 9 - Ride Level Indicator
CHEVROLET TRUCK SERVICE MANUAL