Komatsu PC2000-8 BACKHOE, Operation & Maintenance Manual

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ATTACHMENTS AND OPTIONS
HANDLING SERVICE CENTER
6-17
When Lowering Service Arm (Setting to Position for Use) 6
1. Check the lock lever (1) is at the LOCK position (L). When
lock lever (1) is in FREE position (F), the service arm can-
not be operated.
2. Turn the starting switch key to the ON (B) position.
3. Set service center switch (2) to the FREE position (F).
4. Keep pulling service arm LOWER switch (3)(Yellow) at the
rear of the swing circle until the service arm automatically
stops.
REMARK
When the lock lever is in the FREE position, the service arm
cannot be operated.
It is possible to lower the service arm even when the engine is
running. In this case, the movement of the service arm will be
faster than when the engine is stopped.
When the service arm is lowered with the engine running, the
service arm will automatically be reset to the stowing position if
the service arm is not lowered to the range where the auto-
matic stowing mechanism is actuated (when the height of the
tip of the service arm from the ground is less than 2.0 m).