Komatsu D61EX-24 Operation & Maintenance Manual page 230

OPERATION
METHOD FOR ADJUSTING WEIGHT ON SEAT
When adjusting the seat cushion, turn the starting switch to ON position since the air compressor built in the
seat is used for the adjustment.
NOTICE
Avoid using the height adjustment lever continuously for 1 minute or longer since such practice can
damage the air compressor.
The suspension should be adjusted in proportion to the operator's weight to protect the operator.
After a change of the operator, bleed the air and perform following operations.
Pull up the height adjustment lever fully, and then release it.
The seat cushion is adjusted automatically.
• The weight-based adjustment starts as soon as the height
adjustment lever is pulled lightly. Pull it up fully until it
clicks, and then release it.
• Operate the lever in the normal operating posture to en-
sure the correct weight-based adjustment at this time.
If you stand up from the seat or try to change the load ap-
plied to the seat during adjustment, the air in the suspen-
sion may be released.
After the automatic weight-based adjustment, the seat is the lowest position in the adjustment range.
Adjust the height of the seat.
METHOD FOR ADJUSTING SEAT HEIGHT
Turn the engine starting switch to ON position when performing adjustments of seat height since the air com-
pressor built in the seat is used for this adjustment.
NOTICE
Avoid using the height adjustment lever continuously for 1 minute or longer since such practice can
damage the air compressor.
The seat height is adjusted pneumatically and in stepless.
1.
When adjusting the seat height, pull up the height adjust-
ment lever fully or push it down fully.
Vertical adjustment range: 80 mm {3.1 in}
When raising it, pull up the height adjustment lever until it
clicks.
When the seat stops while you are pulling up the height
adjustment lever, it is at the maximum position.
If the seat is raised to the maximum height, the suspension
lowers a little automatically to secure some stroke.
Do not set the seat height below the adjustment range,
otherwise, suspension touches to the bottom.
2.
After adjusting, release the height adjustment lever.
MACHINE OPERATIONS AND CONTROLS
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