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WARNING: Failure to follow these safety
precautions may lead to a serious accident.
PRECAUTIONS FOR ATTACHMENTS
• When installing and using an optional attachment, read the instruction manual for the attachment and the
information related to attachments in this manual.
• Do not use attachments that are not authorised by Komatsu or your Komatsu distributor. Use of unauthor-
ised attachments could create a safety problem and adversely affect the proper operation and useful life of
the machine.
• Any injuries, accidents, product failures resulting from the use of unauthorised attachments will not be the
responsibility of Komatsu.
MACHINES WITH ACCUMULATOR
On machines equipped with an accumulator, for a short time after the engine is stopped, the work equip-
ment will lower under its own weight when the work equipment control lever is shifted to LOWER. After the
engine is stopped, set the safety lock lever to the lock position (and also lock the attachment pedal with the
lock pin).
When releasing the pressure inside the work equipment circuit on machines equipped with an accumulator,
follow the procedure given in the inspection and maintenance section.
Method of releasing pressure
The accumulator is filled with high-pressure nitrogen gas, and it is extremely dangerous if it is handled in the
wrong way. Always observe the following precautions.
• Never make any hole in the accumulator or expose it to flame or fire.
• Do not weld anything to the accumulator.
• When carrying out disassembly or maintenance of the accumulator, or when disposing of the accumulator,
it is necessary to release the gas from the accumulator. A special air bleed valve is necessary for this
operation, so please contact your Komatsu distributor.
Gas in accumulator
EMERGENCY EXIT
• When exit by normal means is prevented in an emer-
gency you can get out through the emergency exit
(rear window).
• Pull the ring at the bottom of the window and remove
strip. This will allow you to push out glass.
ROTATING BEACON (OPTION)
• When the machine is operated on or beside a road, a rotating
beacon is required to avoid a traffic accident.
• Contact your Komatsu distributor to install beacon lamp.
ELECTROMAGNETIC INTERFERENCE
When this machine is operating close to a source of high electromagnetic interference, such as a radar station,
some abnormal phenomena may be observed.
• The display on the monitor panel may behave erratically.
• The warning buzzer may sound.
These effects do not signify a malfunction and the machine will return to normal as soon as the source of
interference is removed
See 11.19 "HANDLING THE ACCUMULATOR''.
See 11.19 "HANDLING THE ACCUMULATOR''.
6. GENERAL PRECAUTIONS
1-7
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