Komatsu PC14R-3, Operation & Maintence Manual

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PRECAUTIONS FOR MAINTENANCE
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WEAM009300
2.8.18 PRECAUTIONS TO BE TAKEN WHEN
USING HIGH-PRESSURE GREASE
TO ADJUST THE TRACK TENSION
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The grease contained in the track tension adjustment device is
pressurized. If the adjustment is not carried out according to the
instructions given in the maintenance section, the grease valve
(1) may be ejected due to the high pressure and this may be
dangerous for the operator.
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When loosening the valve (1) to reduce the track tension, do not
give it more than one turn.
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Keep your face, hands and other body parts away from the
valve (1).
2.8.19 DO NOT REMOVE THE SHOCK ABSORBING SPRING FROM THE
SHOCK ABSORBER UNIT
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The shock absorber unit is provided with a shock absorbing spring with high preload, in order to absorb the
impacts of the front idler roller.
Do not attempt to remove the spring, since this may lead to serious accidents and even death.
For any operation on the shock absorber unit, contact your Komatsu Dealer.
2.8.20 HYDRAULIC ACCUMULATOR
The hydraulic accumulator contains pressurized nitrogen.
When carrying out any operation on the accumulator, do not
proceed carelessly, since this may cause an explosion and
consequently serious injury and even death. For this reason,
keep to the following instructions:
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do not remove the accumulator;
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do not bring the accumulator near sparks or naked flames;
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do not make holes in the accumulator, do not weld or use
oxyhydrogen flames;
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do not hit or press the accumulator;
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when disposing of the accumulator, take care to release the gas
it contains. Have this operation carried out only by a Komatsu
Dealer.
RYA00950
RKA12540