MAINTENANCE MAINTENANCE PROCEDURE
4-73
REPLACE HYDRAULIC TANK ADDITIONAL 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 nut (2) of breather assembly (1) at the top of the
hydraulic tank, then remove cover (3).
2. Replace filter element (4) with a new element.
3. Install cover (3) and nut (2).
CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (for breaker) 4
(If equipped)
A special tool is needed for inspecting and charging with nitrogen gas.
Have your Komatsu distributor inspect and charge the accumulator.
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