1. Ride Level Adjustment. While seated, pull up on the ratchet trip lever and
operate the ratchet up and down to increase preload. Push ratchet trip lever
down and operate ratchet to decrease preload. The seat will adjust to weights
from 130 to 275 pounds. When properly adjusted, the preload indicator will
be as shown in the figure, with the tip of the indicator flush with the seat frame.
2. Backrest Angle Adjustment. Lift up on backrest and tilt forward or backward.
Lower the backrest so that it engages one of three notched positions.
3. Forward and Backward Seat Adjustment. Pull out on lever (towards door) and
move seat forward or backward to adjust for your leg length. Seat may be
moved forward or back 6 inches.
4. Fasten seat belt and adjust for proper fit. Make sure companion seat belt is used if sameone is
2-10. Starting and Warmup (at temperatures of +32°F and above).
a. MAKE SURE YOU APPLY THE PARKING BRAKE. Pull out to set brake. Push
in to release brake.
This truck has a neutral safety switch which prevents the
engine from being started if the transmission is in gear,
b. PLACE THE TRANSMISSION RANGE SELECTOR IN THE NEUTRAL (N)
c. TURN THE ENGINE RUN SWITCH TO THE ON POSITION. The low air pressure
buzzer should sound and the following warning lamps should illuminate:
ENG OIL (low Oil Pressure)
LOW AIR PRESSURE
d. Make sure the cab controlled sliding fifth wheel valve lever is in the LOCK posi-
tion and the differential lock/unlock control is set to UNLOCK. The DIFF LOCK
OUT lamp will be lit if the differential control is in the LOCK position,
e. Make sure that all accessories are turned off and that the engine retarder system
is disengaged (foot off pedal).
The companion seat belt has nonlocking retractors. For proper use webbing must first
be completely extended from the nonlocking retractor device. All excess webbing must
then be adjusted at the buckle.