Hydraulic Circuit Pressure Release Procedure - Hitachi ZW 100-G Workshop Manual

GENERAL / Hydraulic Circuit Pressure Release Procedure
HYDRAULIC CIRCUIT
RELEASE PROCEDURE
Release the remaining pressure in hydraulic circuit as
follows when front attachment etc. have been removed
/ installed.
1. Set front control lever lock (1) to the UN LOCK
position.
2. Run the engine at low idle speed for 5 minutes to
cool the engine.
3. Turn key switch OFF.
4. Move front control lever (2) to 4 or 5 turn of
pressure release circuit.
5. Set front control lever lock (1) to the LOCK
position.
PRESSURE
Lock
1
W1-5-1
2
UnLock
M4FJ-01-004