PRECAUTIONS FOR MAINTENANCE SAFETY
2-42
PRECAUTIONS WITH HIGH-PRESSURE GREASE WHEN ADJUSTING TRACK TENSION
q Grease is pumped into the track tension adjustment sys-
tem under high pressure.
If the specified procedure for maintenance is not followed
when making adjustment, grease drain plug (1) may fly out
and cause serious injury or property damage.
q When loosening grease drain plug (1) to loosen the track
tension, never loosen it more than one turn. Loosen the
grease drain plug slowly.
q Never put your face, hands, feet, or any other part of your
body close to grease drain plug (1).
HANDLING ACCUMULATOR AND GAS SPRING
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 is handled mis-
takenly, it may cause an explosion that could lead to serious personal injury or death. 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.
HANDLING OPG TOP GUARD
q If any modification is applied to OPG, it may affect the
strength and may not comply with the standard. Consult
Komatsu distributor before altering.
q OPG may provide less protection if it has been structually
damaged. Consult Komatsu distributor in this case
09620-A3000
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