Maeda MC815C, Operation Manual, Page: 179 / 426

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2.24 OUTRIGGER STOWAGE OPERATION
• Do not let people approach the machine when stowing the outriggers.
Close proximity to the machine may cause serious accidents such as getting caught
between the outrigger and the machine main unit.
• Before stowing the outriggers, check that there are no obstacles under the crawler
belts.
If there is any object under the rubber tracks, the machine may overturn and cause
serious accidents when stowing the outriggers.
• During operations except those for extending/setting the outrigger cylinders, the
engine must be kept shut down.
A person touching an outrigger switch may result in sudden movement of the
outrigger cylinder, which may lead to serious accidents.
• If a positioning pin is removed, the corresponding outrigger loses its support,
resulting in slewing. Be sure to hold an outrigger with one hand when removing its
positioning pins.
• Do not put hands or fingers around the gaps of movable areas when stowing the
outriggers.
Otherwise, they may get caught, leading to serious accidents.
• When stowing outriggers, insert each position pin completely to lock.
• There are 4 outriggers. Each outrigger has its own switch. Be careful not to confuse
the outrigger switches when setting the outriggers.
Check both the outrigger numbers indicated in the “control panel” of the switch and
“number labels” attached to each outrigger. A serious accident may result if the
outrigger numbers are confused.
• When you operate two outrigger switches at one time, only the two switches for the
front outriggers ([(1)] and [(4)]), or the two for the rear outriggers ([(2)] and [(3)]) can
be operated simultaneously. If two switches on either left or right side are operated at
the same time, two outriggers on one side may be abruptly activated, causing the
machine to overturn.
• During outrigger switching operation, always keep the engine at lower speed.
When the engine is controlled to high speed, outriggers move too quickly which may
result in serious accidents including tipping of the machine.
• When lowering the floating machine to make it rest on the ground, operate the four
outriggers so that they are retracted equally in a step-by-step manner by using the
eight outrigger switches. If the 2 outriggers on either the left or right side are suddenly
retracted, the machine becomes unstable which may cause the machine to overturn.
• After the outriggers have been grounded, do not attempt to “extend” them. Doing so
may cause damage to outriggers due to the excessive force that is applied to them.
• Before operating the outriggers, be sure to shift the travel lock lever into the free
position.
CAUTION
• Before operating an outrigger, be sure to move the boom to the “lowest, fully retracted
and slewing stowage” position. The outriggers cannot be operated unless the boom is
completely retracted. (Make sure that the crane stowage lamp on the monitor is lit in
yellow.)
• Set the mode selector switch on the outrigger operation panel to the “Outrigger”
position.
[1] TASKS TO BE PERFORMED AFTER STARTING
THE ENGINE
The following explains the setting procedure for only one
outrigger (4). Repeat the same procedure for the other
three outriggers.