Komatsu Utility 69001, Operation & Maintenance Manual

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SERVICE PROCEDURE
MAINTENANCE
4-66
REPLACE HYDRAULIC TANK BREATHER ELEMENT 4
WARNING
q
The parts and oil are at high temperature immediately after the engine is stopped, and may cause
burns. Wait for the temperature to go down before starting the work.
q
When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
1. Remove the cap of oil filler (F) at the top of the hydraulic
tank.
2. Replace element (1) inside the cap.
CHECKING CHARGE PRESSURE OF NITROGEN GAS IN ACCUMULATOR (FOR CON-
TROL CIRCUIT)
4
WARNING
The accumulator is charged with high-pressure nitrogen gas, so mistaken operation may cause an explo-
sion, 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 equip-
ment, 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.