Komatsu WA470-5H Operation & Maintenance Manual page 131

Wheel loader
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OPERATION
OPERATION
(E) Seat height adjustment
Move lever (2) up/down, then move the seat up or down as desired. Since lever (2) is also used for adjusting seat
angle, set the seat to the desired height while adjusting the angle.
Adjustment range: 60 mm (2.4 in)
(F) Adjusting height of headrest
Move the headrest up and down to the desired height.
Adjustment range: 50 mm (2.0 in)
(G) Adjusting headrest angle
Rotate the headrest to the front or rear.
(H) Angle of armrest
Adjust angle of armrest by rotating knob (5) (left side only).
Adjustment range: 30 degrees ((forward tilt: 25 degrees, backward tilt:5 degrees)
Also, when armrest is turned, it will spring up. (Both left and right sides)
(I) Lumbar support
Turn grip (6) to adjust the tension applied to the lower back.
Turn grip (6) in the direction of the arrow.
The tension can be adjusted to 5 stages. If the grip is turned beyond the 5th stage, the tension will return to the 1st
stage.
Lumbar support type
0.
Adjustments (E), (J), and (K) use the air compressor built into the seat, so turn the engine starting switch to the ON
position when carrying out the adjustment.
(A) Fore-and-aft adjustment
Pull lever (1) up, set the seat to the desired position, then
release the lever.
Amount of adjustment: 180 mm (7.1 in)
(10 mm (0.4 in) x 18 stages)
(B) Adjusting seat angle
Move lever (2) up and apply your weight to the rear of the seat.
The seat will tilt to the rear.
Move lever (3) up and apply your weight to the front of the seat.
The seat will tilt to the front.
Amount of adjustment: 24 degrees (front and rear tilt: 3 stages
each)
(C) Adjusting height of seat
Move levers (2) and (3) up and move the seat up or down to
the desired position.
These levers are also used for adjusting the seat angle, so
adjust the seat angle to set the seat to the desired height.
Amount of adjustment: 65 mm (2.6 in)
(D) Adjusting fore-and-aft position of seat cushion
Push in lever (4), set the seat cushion to the desired position, then release the lever.
Amount of adjustment: 60 mm (2.4 in)
3-75

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