Hitachi ZW180 Operator's Manual page 243

6. Remove the right side cover from the base machine. Con-
nect attached drain hose (6) to drain valve (7) on the bot-
tom of the hydraulic oil tank to drain oil.
7. Supply hydraulic oil through cover (5) hole on the top of
the hydraulic oil tank while checking the oil level at level
gauge (8).
Capacity of hydraulic
ZW180 100 liters
ZW220 114 liters
ZW250 114 liters
ZW310 128 liters
8. Install cover (5) with bolts (6 used).
IMPORTANT: When changing hydraulic oil, take care not
to enter foreign matters such as dirt, water,
and /or sand into the hydraulic oil tank.
9. Start the engine. Slowly raise or lower the arm and tilt the
bucket forward and backward. Stop the engine. Check for
any oil leakage. Check the oil level using level gauge (8).
Total oil capacity in
oil tank the hydraulic system
150 liters
190 liters
210 liters
230 liters
MAINTENANCE
7-43
6
M4GB-07-046
7
M4GB-07-047
8
M4GB-07-045