Maeda D3001, Руководство по эксплуатации

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Section 4 – REMOTE CONTROL OPERATION Mini-Crawler Crane M A E D A
4-112 3/2019 MC305C-3
Stop Telescoping
Release the Accelerator lever slowly, then next
release the Boom telescoping/No.2 outrigger
operation lever to return it to the neutral position.
The boom stops telescoping.
Hook Raising and Lowering Operation
WARNING!
• In the event of "Over-hoist alarming" or
"Automatic cut out" during the hook
raising operation, immediately suspend
winding. Otherwise, it may cause a damage
to the Crane, or the wire-cable is broken
which result dropping off the hook or load;
a serious accident may happen.
• Continuing the hook lowering in the
condition that the load already reached the
ground, the random wind of the wire-cable
will happen. This may damage the wire
cable or shorten its life badly. Further,
there is some risk that the wire-cable may
bite itself which prevents any more
winching. During the hook lowering,
always take good care not to cause such
random wind.
• The hook is raised or lowered by the boom
telescoping or boom lift, as well.
The same attention must be paid as the
hook raising and lowering by the winch
operation.
Fig. 4-337
Hook Raising
Push the Hook raising and lowering/No.2
outrigger operation lever to "Raise (lower)", then
pull the Accelerator lever slowly.
The hook starts to be raised.
Hook Lowering
Push the Hook raising and lowering/No.2
outrigger operation lever to "Lower (lower)", then
pull the Accelerator lever slowly.
The hook starts to be lowered.
Stop Raising or Lowering
Release the Accelerator lever slowly, then
release Hook raising and lowering/No.2
outrigger operation lever to return it to the
neutral position.
The hook stops raising or lowering.
Boom Derricking Operation
Fig. 4-338
Boom Raising
Push the Boom lift/No.4 outrigger operation
lever to "Raise (lower)", then pull the Accelerator
lever slowly.
The boom is raised.
Boom Lowering
Push the Boom lift/No.4 outrigger operation
lever to "Lower (upper)", then pull the
Accelerator lever slowly.
The boom is lowered.
Stop Boom Derricking
Release the Accelerator lever slowly, then
release the Boom lift/No.4 outrigger operation
lever to return it to the neutral position.
The boom stops derricking.