Komatsu PC308USLC-3E0 Operation & Maintenance Manual page 303

ATTACHMENTS AND OPTIONS
Accumulator
The accumulator is charged with high-pressure nitrogen gas, so mistaken operation may cause an explosion, which will lead to
serious injury or damage. When handling the accumulator, always do as follows.
The pressure in the hydraulic circuit cannot be completely removed. When removing the hydraulic equipment, do not stand
in the direction that the oil spurts out when carrying out the operation. In addition, loosen the bolts slowly when carrying out
the operation.
Do not disassemble the accumulator.
Do not bring it near flame or dispose of it in fire.
Do not make holes in it or weld it.
Do not hit it, roll it, 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
carried out.
This accumulator (6) is installed to reduce the peak pressure in the
hydraulic circuit when a breaker is used. Normally, do not touch it.
NOTICE
For machines equipped with a breaker, when connecting to the breaker piping, it is necessary to install the accumulator specified
by the breaker manufacturer for that breaker model. If the breaker is operated without an accumulator being installed, the
life of the machine will be reduced. Please contact your Komatsu distributor if you have questions about the applicable breaker.
For details, see "CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (for breaker) (PAGE 4-63)".
WARNING
MACHINE READY FOR ATTACHMENT
6 - 7