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PRECAUTIONS FOR MAINTENENCE
On machines equipped with an accumulator, for a short time after the engine is stopped, if the blade control lever
is moved to the LOWER position, the work equipment will move down under its own weight.
After stopping the engine, always place the safety lock lever and Parking lever in the LOCK position.
When releasing the pressure inside the work equipment circuit on machines equipped with an accumulator, follow
the procedure given in the following section.
Method of releasing pressure : See "ACCUMULATOR, HANDLING (PAGE 3-68)".
The accumulator is charged with high-pressure nitrogen gas.
When handling the accumulator, careless procedure may cause
an explosion which could lead to serious injury or property
damage. For this reason, always observe the following
precautions.
Do not disassemble the accumulator.
Do not bring it near flame or dispose of it in fire.
Do not make holes in it, weld it, or use a cutting torch.
Do not hit or roll the accumulator, or subject it to any impact.
When disposing of the accumulator, the gas must be released.
Please contact your Komatsu distributor to have this work
performed.
Only authorized personnel can service and repair the machine. Do not allow unauthorized personnel into the area.
If necessary, employ an observer.
Appoint a leader before starting removal or installation
operations for attachments.
Place attachments that have been removed from the machine in
a stable condition so that they do not fall. And take steps to
prevent unauthorized persons from entering the storage area.
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