Komatsu WA470-5H Operation & Maintenance Manual page 132

Wheel loader
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OPERATION
OPERATION
(E) Adjusting weight setting for seat
Sit on the seat, raise your body slightly, then operate switch (5) to adjust the strength of the suspension.
Amount of adjustment: 50 - 130 kg (110 - 287 lb)(target)
When + is pressed: Suspension becomes stronger
When - is pressed: Suspension becomes weaker
(F) Adjusting reclining angle
Move lever (6) up and move the seat backrest to the front or rear.
Push your back against the backrest when carrying out this adjustment. If your back is not pressing against the
backrest, the backrest may suddenly spring forward.
Amount of adjustment: Front tilt: Free
Rear tilt: 40 degrees (2 degrees x 20 stages)
(G) Adjusting angle of head rest (if equipped)
Rotate the headrest to the front or rear.
Amount of adjustment:
Front tilt: 13 degrees
Rear tilt: 13 degrees
(H) Adjusting height of head rest (if equipped)
Move the head rest up or down.
Amount of adjustment: 80 mm (3.2 in)
(I) Adjusting angle of arm rest
Rotate the knob (7) and adjust the angle of the arm rest. (Left side only)
Amount of adjustment: 73 degrees (front: 54 degrees; rear: 19 degrees)
If the arm rest is turned, it will spring up. (Both left and right sides)
(J) Lumbar support
Operate switch (8) to give a suitable tension to the lower lumbar region.
Operate switch (9) to give a suitable tension to the upper lumbar region.
When + is pressed: Tension becomes stronger
When - is pressed: Tension becomes weaker
(K) Side support
Operate switch (10) to give a suitable tension to the left and right lumbar region.
When + is pressed: Tension becomes stronger
When - is pressed: Tension becomes weaker
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