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CHECK HYDRAULIC OIL LEVEL
IMPORTANT: If the machine is operated without sufficient
supplying of hydraulic oil, air can become
mixed into the pump, possibly causing dam-
age to the pump.
Be sure to check the oil level by following the procedures be-
low:
• Park the machine on solid and level ground with the at-
tachment contacted on the ground as illustrated to the
right. Stop the engine.
• Fully retract the arm cylinder.
• Open the grapple. (Fully retract the open/close cylinder.)
• Open the front pump cover. Check oil level with level
gauge (1) on the side surface of the hydraulic oil tank. The
oil level should be between the high and low marks on
level gauge (1) when normal.
IMPORTANT: When replacing the front attachment or hos-
es, a large volume of air may become mixed
into the hydraulic line. After replacing the
front attachment or hoses, check the oil level
and add oil as required. Be sure to correctly
follow the procedures mentioned above.
(Refer to the Hydraulic Excavator Operator's
Manual.)
MAINTENANCE
8-9
1
ZX210LC-
, 250LC-
3
ZX470LCH-
1
SA-1782
, 350LC-
3
3
M1U1-07-048
3
M1J1-07-010
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