Komatsu PC138US-11 Operation & Maintenance Manual page 215

OPERATION MACHINE OPERATIONS AND CONTROLS
METHOD FOR ADJUSTING SEAT UNIT IN FORE-AND-AFT DIRECTION
Pull fore-aft adjustment lever (7) to the right, adjust the seat to
the desired position, then release fore-aft adjustment lever (7).
The operator's seat, right and left control levers, and lock lever
all slide (move) together.
Fore-and-aft adjustment: 120 mm (12 stages)
METHOD FOR ADJUSTING SUSPENTION SEAT HARDNESS
(for suspension seat)
The figures of weight is indicated on adjustment dial (8). Turn it
so that the figure of your weight is at the top.
Adjustment range by the weight: 60 to 150 kg
To make the seat softer, turn the adjustment dial in the direction
for lighter weight. To make the seat harder, turn the adjustment
dial in the direction for heavier weight.
When traveling on rough road surfaces, make the seat harder
in advance.
METHOD FOR ADJUSTING MIRRORS
WARNING
k
Be sure to adjust the mirrors before starting work. If they are not adjusted properly, you cannot secure
the visibility and may be injured or may lead to serious personal injury or death.
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