Komatsu PC118MR-8 Operation And Maintenance Manual page 401

OPTIONAL EQUIPMENT
3. Turn the starter key to ON and take the locking lever to
FREE.
4. Within 15 seconds after the engine stops, fully move, in all
directions, each control lever (working tools and travel) and
the accessories control button to release internal pressure.
5. Take the locking lever to LOCK and turn the starter key to
OFF.
6. Open the side cover (1).
7. Open the lock (2).
8. Slowly loosen the filling cap (3) to release the remaining
pressure of the tank.
WEAM014802
EQUIPMENT USE GUIDE
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