Komatsu D61EX-24 Operation & Maintenance Manual page 228

OPERATION MACHINE OPERATIONS AND CONTROLS
METHOD FOR ADJUSTING LUMBER SUPPORT
Turn the adjustment knob to the right or left, and give proper
tension to the waist part.
The back cushion tension is increased by turning the adjust-
ment knob to the right.
The tension of the back cushion can be adjusted to 5 steps. If
the adjustment knob is turned to right further after the 5th step,
the tension returns to the 1st step.
METHOD FOR HEATING SEAT
Turn on the seat heater switch.
(a): OFF position
(b): ON position
The backrest and seat surface are heated.
When the seat heater switch is turned on, the heater in the seat operates. When the seat surface temperature
exceeds approximately 20 °C {68 °F} , the heater is turned off automatically. When the temperature decreases
below approximately 10 °C {50 °F} , the heater is turned on automatically.
REMARK
When the seat surface temperature is above approximately 20 °C {68 °F} , the heater does not operate even if
the switch is turned on.
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