Komatsu PC45MR-30403, Operation And Maintenance Manual

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OPEN LOCK FOR CAB DOOR
Use this to fix the cab door in position after opening it or when getting in and out the machine.
1.
Push the cab door against the catch part (1) to lock it in
position.
Fix the cab door against the catch part (1) securely.
When getting on or off the machine, hold the inside hand-
rail.
2.
To close the cab door, push down the release knob (2).
Catch (1) is released.
OPERATION EXPLANATION OF COMPONENTS
3-99