Komatsu D31EX-21, Operation & Maintenance Manual, Page: 48 / 256

PRECAUTIONS FOR MAINTENANCE
SAFETY
2-30
PROPER TOOLS
Use only tools suited to the task and be sure to use the tools
correctly. Using damaged, low quality, faulty, makeshift tools or
improper use of the tools could cause serious personal injury.
ACCUMULATOR
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 prop-
erty damage. For this reason, always observe the following
precautions.
q
Do not disassemble the accumulator.
q
Do not bring it near flame or dispose of it in fire.
q
Do not make holes in it, weld it, or use a cutting torch.
q
Do not hit or roll the accumulator, or subject it to any
impact.
q
When disposing of the accumulator, the gas must be
released. Please contact your Komatsu distributor to have
this work performed.
NO UNAUTHORIZED PERSONNEL INTO AREA
Only authorized personnel can service and repair the machine. Do not allow unauthorized personnel into the
area. If necessary, employ an observer.
ATTACHMENTS
q
Appoint a leader before starting removal or installation
operations for attachments.
q
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.