Change Hydraulic Oil - Hitachi ZW180 Operator's Manual

2
Change Hydraulic Oil --- every 4000 hours
WARNING: Hydraulic oil becomes hot and pressur-
ized during operation. Severe burns may result if skin
comes in contact with escaping hydraulic oil imme-
diately after operation. Wait for the oil to cool before
starting any maintenance work.
IMPORTANT: Do not use hydraulic oils other than listed in
the "Brand Names of Recommended Hydrau-
lic Oil".
1. Park the machine on solid level surface. Lower the bucket
to the ground. Stop the engine.
2. Turn the parking brake switch (1) ON. Press the neutral
lever lock (2) to the LOCK position.
3. Lock the front and rear frames with the articulation lock
bar (3).
4. Before changing the hydraulic oil, be sure to relieve the
air pressure from the hydraulic oil tank by pressing air
bleed valve (4). Remove cover (5).
5. Arrange a container of approx 150 liters. Remove hydrau-
lic oil using an oil supply pump.
MAINTENANCE
2
7-42
3
4
1
M4GB-01-004
M4GB-01-136
5
M4GB-07-044