• Stop the machine on firm, level ground. Store the crane, and then
stop the engine.
• Turn the starter switch to the ON position. Operate the work
equipment control lever back and forth. Left and right at the full
stroke 2 to 3 times to eliminate the remaining internal pressure in the
hydraulic circuit, and then push up lock lever (1) to the LOCK
position (L) and turn starter switch to the OFF position.
• Check that the battery relay is off and main power is not conducted.
Wait for approx. one minute after turning off the engine starter
switch key and press the horn switch. If the horn does not sound,
it is not activated.
• Set the Disconnect Switch by the battery to " " position to cut the
power line, to prevent the engine from un-expected starting during
maintenance.
• Put blocks under the track to prevent the machine from moving.
To prevent injury, do not carry out maintenance with the engine
running. If maintenance must be carried out with the engine running,
carry out the operation with at least two workers and do as follows.
• One worker must always sit in the operator’s seat and be ready to
stop the engine at any time. All works must maintain contact with
the other workers.
• When carrying out operations near the fan, fan belt, winch drum, or
other rotating parts, there is a hazard of being caught in the parts,
so be careful not come close.
• Never drop or insert tools or other objects into the fan, or fan belt or
winch drum, or other rotating parts. Parts may break or be sent
flying.
• Do not touch any control levers or pedals. If any control levers or
pedals must be operated, always give a signal to the other workers
to warn them to move to a safe place.
• Release the pressure remaining in the hydraulic system and
operate the lock lever (1) to "Lock" position (L).
Refer to "Maintenance 12. Releasing the Internal Pressure from
the Hydraulic System".
• Do not touch any control levers or pedals. If any control levers or
pedals must be operated, always give a signal to the other workers
to warn them to move to a safe place.
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