Chevrolet 10 Series 1968, Service Manual

Page: 105 / 713

BODY IB-38
RETAINER
HOLE
ROD (EN G IN E
HOOD PROP)
F ig . 91 - P20-30 Engine Access and Hood Prop.
Brake M ain Cylinder
Open door in instrument panel just back of windshield
glass in front of driver to gain access to main brake cyl­
inder (fig. 92).
Battery
Release catch and open the lid of the engine housing (H)
to service or remove the battery.
Radiator Fill C ap
On 6 cylinder models, open small door in the front end
outer cowl panel to gain access to radiator fill cap, Fig­
ure 92.
Gas Tank
1. Gas tank fille r spout is located in a recessed box in
left side at the rear.
2. To remove gas gauge disconnect gas line, gas tank
fille r spout, loosen gas tank hanger strap and drop
tank to ground.
V oltage Regulator & Headlam p Relay
Remove plate (G) on bulkhead panel at front side of
right hand sliding door to gain access to voltage regulator
and headlamp relay.
Heater
1. Hose wire connections are accessible through door in
outer cowl panel (fig. 92).
Horn
lo
Horn wire connections accessible through door in
outer cowl panel (fig. 92).
Engine Housing
1. Release catch, open engine box lid (H) and lock hinge
arm in open position.
2. Remove accelerator pedal by taking out 2 cap screws.
3„ Remove metal screws around bottom of box, on v e r­
tical sides at right rear corner and left front corner.
4. Remove box.
5. Reverse procedure to install.
W inshield Wipers
1. To service windshield wiper motor remove inspec­
tion plate (B) in center of front end header panel
above windshield.
2. Pivot assemblies service through openings on each
side of wiper motor.
3. Wiper switch (C) is mounted in front end header ac­
cessible through left side opening (A).
4. Circuit breaker for wiper motor is located on fir e ­
wall directly above clutch pedal.
W indshield W ipers Adjustment
1. To adjust position of windshield wiper arms have
them in park position. Mark this position on glass
with grease pencil.
2. Remove the holding nut and lock washer from the end
of drive shaft.
3. Lift off wiper arm and knurled driver. In most
cases the knurled driver remains inside the wiper
arm. Tap on arm lightly to remove the driver and
place it back on wiper drive shaft.
4. Position the arm above or below the mark on wind­
shield as desired, replace lock washer and tighten
holding nut.
DOORS
ADJUSTMENTS
Bottom of Doors
1. The in and out adjustment for the bottom of sliding
doors is controlled by two nylon rollers in the bot­
tom of the door. One at the front and one at the rear
of door, each operating in a separate track.
2. Note the 7/8 inch diameter hole in the bottom of the
stepwell at the front of the rear track. Also note the
plug button in bottom of stepwell at the front of the
front track. With this plug button removed and the
door in closed position the slot head of each bolt in
center of the roller can be reached from underneath
through these holes.
3. To adjust these rollers use screw driver to hold the
bolt and with a thin open end wrench inserted be­
tween bottom of door and top of stepwell loosen the
hex jam nut on bolt at bottom of door. This frees the
rollers and they can be adjusted in and out as de­
sired.
4. Push the rollers in to move the door out and vice
versa. When rollers are adjusted properly tighten
the jam nut securely. Open door and replace plug
button in front track.
CHEVROLET TRUCK SERVICE MANUAL