Check Oil Level In Hydraulic Tank, Add Oil - Komatsu WA320-5H Operation & Maintenance Manual

MAINTENANCE

CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL

q The parts and oil are at high temperature 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. Lower the bucket horizontally to the ground and stop the
engine. Wait for 5 minutes, then check sight gauge (G).
The oil level should be between the H and L marks.
NOTICE
Do not add oil above the H line. This will damage the
hydraulic circuit or cause the oil to spurt out. If oil has
been added to above the H level, stop the engine and wait
for the hydraulic oil to cool down. Then place a container
under the drain valve (3) to catch the oil, remove drain
plug (P) and loosen drain valve (3) to drain the excess oil
into the container.
2. If the oil is below the L level, add oil to the hydraulic tank as
follows.
1. Remove cover (1).
2. Keep lock pin (2) pulled, then turn oil filler cap (F) coun-
terclockwise and remove it.
3. Refill the specified quantity of oil through oil filler (F).
4. After adding oil, install oil filler cap (F) and cover (1).
WARNING
SERVICE PROCEDURE
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