Operator Seat; Seat Belts; Adjustment - Komatsu 730E Operation & Maintenance Manual

Operation - Section 32
Page 32-10

OPERATOR SEAT

The operator's seat provides a fully adjustable cush-
ioned ride for the driver's comfort and ease of opera-
tion.

Adjustment

The following adjustments must be made while sitting
in the seat.
1. Headrest: Move up, down, fore, or aft by mov-
ing headrest (1, Figure 32-10) to desired posi-
tion.
2. Armrests: Rotate adjusting knob until armrest
is in desired position.
3. Backrest: Lift handle (3) to release and select
backrest angle; release control handle to set.
4. Seat Belt: Operator should always have seat
belt (4) buckled in place and properly adjusted
whenever vehicle is in motion.
5. Seat Slope: Lift lever (5) and hold to adjust the
slope of seat. Release lever to lock adjust-
ment.
6. & 7 Air Lumbar Support: Each rocker switch (6
or 7) controls an air pillow. Switch (7) controls
the lower air pillow and switch (6) controls the
upper air pillow. To inflate, press on the top of
the rocker switch and hold for desired support,
then release. To deflate, press on the bottom of
the rocker switch and hold for desired support,
then release. Adjust each pillow for desired
support.
8. Seat Suspension: Move rocker switch (8) up to
increase ride stiffness and down to decrease
ride stiffness.
9. Horizontal Adjustment: Lift control lever (9) and
hold. Bend knees to move the seat to a com-
fortable position. Release the control lever to
lock the adjustment
10. Seat Height: Lift lever (12) and hold to adjust
the height of the seat. Release the lever to the
lock adjustment.
Seat Removal
1. Remove cap screws (10, Figure 32-10) and
hardware that secure the seat base to the riser.
Remove cap screws (11) that secure tether to
floor.
2. Remove the seat assembly from the cab to a
clean work area for disassembly.
Operator Cab and Controls
FIGURE 32-10. OPERATOR SEAT
ADJUSTMENT CONTROLS
1. Headrest
2. Armrest Adjustment
3. Backrest Adjustment
4. Seat Belt
5. Seat Slope Adjustment
6. Upper Air Pillow Lumbar Support
7. Lower Air Pillow Lumbar Support
8. Suspension Adjustment
9. Horizontal Adjustment
10. Mounting Capscrews and Hardware
11.Seat Tether Capscrew
12. Seat Height Adjustment
Seat Installation
1. Mount the seat assembly to the seat riser.
Install cap screws (10, Figure 32-10), lock
washers, flat washers and nuts. Tighten the cap
screws to standard torque.
2. Fasten tether straps to floor with cap screws
(11), flat washers and lock washers. Tighten the
cap screws to standard torque.
OM3223