Operator's Seat; Seat Belts; Adjustment - Komatsu 930E-4SE Operation & Maintenance Manual

Operator Cab And Controls - Section 32
Page 32-10

OPERATOR'S SEAT

The operator's seat provides a fully adjustable
cushioned ride for driver comfort and easy operation.

Seat Belts

• On both driver and passenger seats, check the
seat belt fabric, buckle, all belt retractors and
hardware for damage or wear. Replace any worn
or damaged parts immediately.
• Even if there are no signs of damage, replace
both driver and passenger seat belts 5 years after
seat belt manufacture, or every 3 years after start
of use, whichever comes first. The passenger
seat belt date of manufacture label is sewn into
the seat belt near the buckle. The driver seat belt
date of manufacture label is sewn into the
shoulder harness belt, near the retractor end.

Adjustment

The following adjustments must be made while sitting
in the seat. Refer to Figure 32-5.
1. Headrest - Move headrest (1) up or down to the
desired position. It can also be tilted forward by
pulling on the top of the headrest. There are
four positions. Pulling the headrest completely
forward will release the ratchet mechanism and
return the headrest to the furthest back position.
2. Seat Height - Push and hold switch (2) to
adjust the height of the seat. Release the switch
when the desired height is reached.
Optimum ride height is obtained when the
suspension is at the middle of its stroke. To
properly adjust, raise the seat to its highest
level. Then, lower the seat approximately 51
mm (2 in.) to the middle of the suspension
stroke.
3. Lumbar Support - Move dial (3) to adjust the
lumbar support to the desired position.
4. Armrest Tilt - Rotate adjusting knob (4) until
the armrest is in desired position.
5. Seat Belt - The operator must always have seat
belt (5) buckled and properly adjusted when-
ever the truck is being operated.
6. Backrest Recline - Lift handle (6) to select the
desired backrest recline. Release the handle to
set the position.
7. Fore/Aft Location of Seat Cushion (if
equipped) - Lift and hold lever (7) and move
the seat cushion to a comfortable position.
Release the lever to lock the position adjust-
ment.
8. Suspension Dampener - Adjust suspension
dampener (8) to obtain the desired stiffness of
the adjustable shock absorber. Move the lever
upward to stiffen the absorbency of the shock.
Move the lever downward to soften the ride.
Five detented settings are available.
NOTE: This seat contains a fixed rate shock
absorber in addition to the adjustable shock
absorber that is controlled by the suspension
dampener.
9. Seat Cushion Tilt (if equipped) - Lift and hold
lever (9) and tilt the seat cushion to a comfort-
able position. Release the lever to lock the posi-
tion adjustment.
10. Fore/Aft Location of Seat - Lift and hold lever
(10) and move the seat to a comfortable posi-
tion. Release the lever to lock the adjustment.
NOTE: The seat compressor must be allowed to cool
down for ten minutes for every one minute of
continuous operation. The compressor must not be
operated continuously for more than three minutes.
FIGURE 32-5. OPERATOR'S SEAT CONTROLS
1. Headrest
2. Seat Height
3. Lumbar Support
4. Armrest Tilt
5. Seat Belt
6. Backrest Recline
8/11 OM3245
7. Seat Cushion Fore
and Aft
8. Suspension
Dampener
9. Seat Tilt
10. Fore and Aft