jcb JS300 Service Manual page 209

Tracked excavators - tier 4i isuzu engine

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If an emergency occurs:

1. Turn the ignition key to the on position.

2. Enable the controls.

Refer to: Operation > Locks > Control Lock (Page 59).

3. Use the right and left control levers to move the dipper and lower the boom.

4. Vent the hydraulics.

Refer to: Maintenance > Hydraulic System > General > Discharge (Page 221).

5. Turn the ignition key to the off position.

Moving a Disabled Machine

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