Komatsu GD555-5 Operation & Maintenance Manual page 148

OPERATION
ADJUSTMENTS
ADJUST OPERATOR'S SEAT
Park the machine in a safe place and stop the engine when carrying out adjustment of the operator's seat.
Adjust the seat position at the beginning of each shift or when operators change.
Adjust the seat so that the brake pedal can be depressed all the way down with the operator's back against the backrest.
(A) Fore-and-aft adjustment
Pull lever (1) up, move the seat to the desired position, then
release the lever.
Fore-and-aft adjustment: 110 mm (4.3 in) (11 stages)
(B) Adjusting reclining angle
Pull lever (2) up, set the seat back to a position where it is easy to
carry out operations, then release the lever.
When doing this, keep your back pressed against the seat back.
If your back is not against the seat back, the seat back may spring
back suddenly.
(C) Adjusting seat tilt
Front tilt
Push lever (3) down and adjust the angle of the front of seat.
To raise the angle of the front of seat, keep the lever pushed
down and apply your weight to the rear of seat.
To lower the angle of the front of seat, keep the lever pushed
down and apply your weight to the front of seat.
Rear tilt
Pull lever (3) up and adjust the angle of the rear of the seat.
To raise the rear of the seat, keep the lever pulled up and raise yourself slightly from the rear of the seat.
To lower the rear of the seat, keep the lever pulled up and apply your weight to the rear of the seat.
Amount of tilt: Up 13 deg., down 13 deg.
Adjusting seat height
It is possible to raise or lower the seat by combining the front tilt and rear tilt.
Use the front (rear) tilt operation to set the seat to the desired height, then use the rear (front) tilt to make the seat
horizontal.
Height adjustment: 60 mm (2.4 in)
WARNING
OPERATION
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