Maeda LC1385M-8BF - Operations before Crane Operation

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3.16 OPERATIONS BEFORE CRANE OPERATION
Boom extending or raising while the hook block is secured to the wire rope for stowage may
damage the wire rope or the regular hook block stowage section in the front of the upper
structure. Always lower the hook block at the same time, to avoid excessive tension to the
stowage wire rope.
CAUTION
• Be careful not to lower the hook block in to the ground,
which may result in irregular winding of the wire rope to
the drum.
• When the hook block is released from the stowage
position before the boom is sufficiently raised to correct
position, the hook block may swing badly and cause
machine damage or serious injury to persons.
Perform the following operations before crane operation.
1. Set lock lever (1) to the FREE position.
2. Turn fuel control dial (2) to low idling position (MIN).
3.Swing the upper strucure 90 degrees so that it comes
perpendicular to tracks.
NOTES
If the upper structure is not slewed 90 degrees, the blade may
disturb required operations.
4. Operate the right work equipment control lever to HOOK
LOWERING position (push forward) so that the hook block (4) is
lowered and the stowage wire rope (5) (of the regular stowage
position) is loosened.
NOTES
During this operation, over lowering the hook block (4) should be
avoided. Otherwise, the loosened hook block (4) may damage
other components around.
5. Operate right working control lever (3) to BOOM RAISING side
(pull toward you), raise the boom.
NOTES
During this operation, excessive tension between the hook block
and the stowage wire rope (5) should be avoided. In such event
of excessive tension, properly lower the hook block (4).