Hitachi ZW 180-6, Operator'S Manual

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7-8
MAINTENANCE
Preparations for Inspection and Maintenance
d
WARNING: If ride control switch (3) is in the AUTO
position, the lift arm may unexpectedly rise. To
avoid an accident due to unexpected movement
of the lift arm, always turn ride control switch
(3) OFF before beginning the inspection and/or
maintenance of the machine.
d
CAUTION: If the machine moves unexpectedly,
a serious accident may result. Be sure to apply the
parking brake when parking the machine.
Unless specified otherwise, park the machine by following
the procedures below before beginning the inspection
and/or maintenance work.
1. Park the machine on a solid level surface.
2. Lower the working tools such as the bucket to the
ground.
3. Turn ride control switch (3) OFF.
4. Place forward / reverse lever (4) and forward / reverse
switch to neutral and place neutral lever lock (6) to
lock ( ) position.
5. Apply the parking brake (Turn parking brake (5) ON.)
6. Wedge the tires.
7. Run the engine at low idle speed for 5 minutes to
cool the engine. Turn key switch (7) OFF to stop
the engine. Again, turn key switch (7) ON and
place control lever lock switch (2) to the unlock (
) position. Fully operate the lift arm control lever
(1) 3 to 4 strokes to release residual pressure in the
hydraulic system. If inspection and/or maintenance
must be performed with the engine kept running,
use a signal person.
8. Be sure to place control lever lock switch (2) to the
lock ( ) position.
9. Turn key switch (7) OFF and remove the key.
10. Start working only after putting an "UNDER
INSPECTION/MAINTENANCE" tag in a highly visible
place such as on the cab door or the control lever.
MNEC-01-036
MNEC-07-001
MNEC-01-058
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