2.15 OPERATIONS BEFORE CRANE OPERATIONS CAUTION

• For manipulation of each cranes operation levers and outrigger setting switches, set the travelling lever stand in the Travelling Operation Unit to the "Crane Operation Position". When the travelling lever stand is in "Travelling" position, each lever or outrigger setting switch is not availble for its operation.

• When the hook block is released from its holder, be careful not to loosen the wire rope too much to let the hook lie on the ground. Such a condition may result in an irregular winding of the wire rope to the winch.

Perform the following operations before crane operation.

1. Pull up the lock lever (6) before pressing the whole lever stand (7) down to the "Crane Operation Position", then release the lock lever (6).

2 Move forward to the Crane Operation Unit.

3. Push the winch lever (3) forward to the "Lowering" position to slacken the wire rope which fixes the hook block.

4. Remove the hook block (10) from the hook hanger (9).

Notes

Be careful to avoid the hook stopper (13) hitting the hook holder (9). That may damage the hook stopper (13).

5. Push the winch lever (3) forward to the "Lowering" position until the hook block is lowered and the lever (12) of the over hoist detector (11) is released to "Lower" position.

Notes

During this operation, pay attention not to unwind excessively to prevent the hook block from touching the ground surface.

2.16 CRANE OPERATION POSITION

Take the crane operation position by following the procedure below when switching to the operation from the state described in “Operation 2.15 Operations before Crane Operations” in the Operation.

1. Turn the winch lever (3) to the "Lowering" position until the hook block is lowered and the lever (12) of the over hoist detector (11) is released to "Lower" position.

Notes

During this operation, pay attention not to unwind excessively to prevent the hook block from touching the ground surface.

2. Hold the hook block with one hand and move the boom derricking lever to the "Raise" position (pull toward you) with another, so that the boom is slightly raised to the extent that the hook block does not cause over hoisting alarm.