Handling Accumulators - Komatsu PW160-7H Operation & Maintenance Manual

CONTROL LEVERS, PEDALS

HANDLING ACCUMULATORS

After stopping the engine, always raise the safety lock to the
LOCK position.
The accumulators are filled with high-pressure nitrogen gas,
and it is extremely dangerous if they are handled in the
wrong way.
Always observe the following precautions.
Never make any hole in the accumulators or expose them
●
to flame or fire.
● Do not weld any boss to the accumulators.
When disposing of accumulators, it is necessary to re-
●
lease the gas from the accumulators, so please contact
your Komatsu distributor.
Brake circuit accumulators (A) X 3
This machine is equipped with accumulators in the brake circuits.
The accumulator is a device to store the pressure in the circuit,
and when it is installed, the circuit can be operated for a short
time even after the engine is stopped.
The accumulators are installed to the position shown in the dia-
gram on the right.
Control circuit accumulator (B)
This machine is equipped with an accumulator in the control cir-
cuit. The accumulator is a device to store the pressure in the con-
trol circuit, and when it is installed, the control circuit can be
operated for a short time even after the engine is stopped. There-
fore, if the control lever is moved in the direction to lower the work
equipment, it is possible for the work equipment to move under its
own weight.
The accumulator is installed to the position shown in the diagram
on the right.
Clutch control accumulators (C)
This machine is equiped with an accumulator in the transmission
circuit.
The accumulator is installed to the position shown in the diagram.
144
WARNING
OPERATION
A
C
B
PW160-7H VEAM390100