Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual, Page: 69 / 458

SAFETY PRECAUTIONS FOR MAINTENANCE
2–51
ACCUMULATOR AND GAS SPRING
ACCUMULATOR AND GAS SPRING:ALL-0000-2ASK00A
This machine is equipped with an accumulator. Even after the engine stops, the work equipment control levers
can be operated for a short time in the LOWER direction to allow the work equipment to go down under its own
weight.
After stopping the engine, set the lock lever to the LOCK position.
The accumulator and gas spring are charged with high-pressure nitrogen gas. If the accumulator or gas spring is
handled mistakenly, it may cause an explosion that could lead to serious personal injury or death. Always observe
the following.
q
Do not disassemble the accumulator or gas spring.
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 it, roll it, or subject it to any impact.
q
When disposing of the accumulator or gas spring, the gas
must be released. Ask your Komatsu distributor to perform
this work.
COMPRESSED AIR
COMPRESSED AIR:ALL-0000-2ATK00A
q
When carrying out cleaning with compressed air, there is a hazard of serious personal injury caused by flying
dust or particles.
q
When using compressed air to clean the filter element or radiator, wear protective eyeglasses, anti-dust mask,
gloves, and other protective equipment.
MAINTENANCE OF AIR CONDITIONER
MAINTENANCE OF AIR CONDITIONER:ALL-K500-2AHK00A
q
If air conditioner refrigerant gets into your eyes, it may cause loss of sight; if it contacts your skin, it may cause
frostbite. Never loosen any parts of the cooling circuit.
q
Never touch refrigerant.
CHEMICAL HAZARD
During maintenance or dismantling operations, where there is the risk of contact with hazardous chemical sub-
stances, relevant safety precautions should be taken.
If any doubt exists, contact your Komatsu distributor.
See also
See also "DISPOSE OF WASTE MATERIALS (2-51) and MAINTENANCE OF AIR CONDITIONER (2-51)"
DISPOSE OF WASTE MATERIALS
DISPOSE OF WASTE MATERIALS:ALL-0000-99AK00A
To prevent pollution, pay careful attention to the method of disposing of waste materials.
q
Always put oil drained from your machine in containers.
Never drain oil directly onto the ground or dump into the
sewage system, rivers, the sea, or lakes.
q
Obey appropriate laws and regulations when disposing of
harmful objects such as oil, fuel, coolant, solvent, filters,
and batteries.
q
If any doubt exists, contact your Komatsu distributor.
SELECT WINDOW WASHER FLUID
SELECT WINDOW WASHER FLUID:ALL-K7B3-171K00A
Use an ethyl alcohol base washer liquid.
Methyl alcohol base washer liquid may irritate your eyes, so do not use it.