Komatsu GD555-5 Operation & Maintenance Manual page 149

OPERATION
(D) Adjusting armrest angle
Armrest (4) can be made to spring up by hand approximately 90 deg.
In addition, by turning the bottom (5) of the armrest by hand it is possible to make fine vertical adjustments of the
armrest angle.
Armrest adjustment angle: 25 deg.
REMARK
Armrest (4) is designed so that it will automatically go up if the seat back is tipped forward without the armrest being
raised.
(E) Adjusting suspension
To select the optimum suspension, turn knob (6) to adjust the dial for the suspension to the operator's weight as
follows.
Turn CLOCKWISE to make HARDER
Turn COUNTERCLOCKWISE to make SOFTER
REMARK
To adjust to the optimum setting, turn knob (6) so that the indicator in the transparent portion inside the knob
indicates the same as the operator's weight (kg).
ADJUST SEAT BELT
Before fitting the seat belt, check that there is no problem in the belt mount bracket or mounting belt. If it is worn or damaged,
replace the seat belt.
Even if there are no signs of damage, replace belts in accordance with the following schedule:
5 years after the date of seat belt manufacture, or every 3 years after the start of actual usage, whichever date comes first.
Always wear the seat belt during operations.
Fit the seat belt so that it is not twisted.
REMARK
The date of seat belt manufacture attached to the seat belt is the start of the 5-year period. It is not the start of the
3-year period of actual usage.
FASTENING AND REMOVING BELT
Fasten the belt so that it is tight without being too tight.
1. Sit on the seat, depress the brake pedal fully, and adjust the
seat so that your back is pressed against the backrest.
2. Sit in the seat, pull the right side of the belt, then insert tongue
(1) into buckle (2) until a click is heard.
3. When removing the belt, press the red button in buckle (2) to
free the belt.
Fit the belt so that it follows your body and is not twisted.
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WARNING
OPERATION