Operation and maintenance manual

Operator's Compartment - Driver Seat and Mounting
Section 260-0090
SM 1981 4-00
2
8. Set fore/aft isolator (C) position to suit driving
conditions, (forward position - unlocked, rearmost
position - locked).
9. Engage seat belt (D).
REMOVAL
Numbers in parentheses refer to Fig. 1.
WARNINGS
To prevent personal injury and property
damage, be sure wheel chocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the
job safely.
1. Position the vehicle in a level work area, apply the
parking brake and switch off the engine.
2. Block all road wheels and place the battery master
switch in the 'Off' position.
3. Disconnect harness connector at the rear of
the seat.
4. Push down height and weight adjustment (A) handle
to release the air from the seat air suspension system.
6. Using suitable lifting equipment, support seat and
remove bolts (35) and washers (36) securing complete
seat assembly to the cab wall. Remove seat assembly
from vehicle.
DISASSEMBLY
Numbers in parentheses refer to Fig. 1.
Note: The disassembly and assembly procedures will
cover only basic subassemblies due to the multitude of
parts. If a subassembly must be disassembled, use
the exploded view in Fig. 1 for reference.
1. Remove bolts (37), washers (39), lockwashers (39)
and nuts (40) securing seat base (34) to seat
assembly. Remove seat base (34) from seat
assembly.
2. Remove covers (7 & 8) from seat assembly.
Remove nuts and spacers securing lap belt (9) to seat
assembly. Remove lap belt (9).
3. Pull up and remove backrest (6) from seat frame (1).
A retractable lap belt (9) is secured to the seat
assembly using nuts and spacers. A push button
allows quick release of lap belt (9).
The following is the list of controls to adjust the seat:
A. Height and weight adjustment.
B. Horizontal adjustment (sliderails).
C. Fore/aft isolator (forward position - unlocked,
rearmost position - locked).
D. Seat belt.
E. Backrest angle adjustment.
F. Backrest height adjustment.
G. Damper adjustment (4 positions; forward position -
hardest setting, rearmost position - softest setting).
WARNING
Do not attempt to adjust the seat or seat belt
while the machine is moving. Loss of control
may result. Stop the machine; apply the brakes;
then adjust.
OPERATION
To achieve the most comfortable driving position,
adjust the seat as follows;
1. Sit in seat.
2. Pull up and release height and weight adjustment (A)
handle - this will reset the seat to the predetermined
height setting - 'bounce' lightly until a 'click' is heard,
the seat position in now engaged properly.
3. Pull up horizontal adjustment handle (B) and move
seat forwards or backwards, release handle when
required position is achieved.
4. Pull up (or push down) height and weight adjustment
(A) handle and hold until the require height position is
achieved, release handle - 'bounce' lightly until a 'click'
is heard, the seat position in now engaged properly.
5. Pull up handle (E) and adjust backrest to the required
angle, release handle when required position is
achieved.
6. Pull up (or push down) backrest (F) to the required
height.
7. Set damper adjustment (G) position to suit driving
conditions, (4 positions; forward position - hardest
setting, rearmost position - softest setting).