Genie Industries Z-30/20, Руководство по обслуживанию

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4 - 14 Genie Z-30/20 Part No. 43063
Service Manual - Third Edition Section 4 - Scheduled Maintenance Procedures
TABLE B PROCEDURES
6 Press down the foot switch. Move the drive
control handle off center, hold for a moment
and then release it. Move the drive control
handle off center in the opposite direction, hold
for a moment and then release it.
Result: The travel alarm should sound when
the drive control handle is moved off center in
either direction.
B-15
Perform Hydraulic Oil Analysis
See D-1, Test or Replace the Hydraulic Oil.
B-16
Test the Turntable Rotation Stop
The turntable is capable of rotating the boom 355
degrees and is stopped midpoint between the
steering wheels by the rotation stop. Detecting a
rotation stop malfunction is essential to safe
operation and good machine performance. If the
turntable rotates past the rotation stop, component
damage may result.
1 Turn the key switch to platform control and lift
the red Emergency Stop switch cover and
move the toggle switch to the
ON
position at the
ground controls. Pull out the Emergency Stop
Button to the
ON
position at the platform
controls.
2 Rotate the turntable to the left full circle as far
as it will go.
Result: Movement should stop when the
primary boom reaches mid-point between the
steer tires.
3 Rotate the turntable to the right full circle as far
as it will go.
Result: Movement should stop when the
primary boom reaches mid-point between the
steer tires.
B-17
Check the Electrical Contactors
Maintaining the electrical contactors in good
condition is essential to safe machine operation.
Failure to locate a worn or damaged contactor
could result in an unsafe working condition and
component damage.
1 Remove the drive chassis cover at the non-
steer end and locate the electrical component
compartment.
2 Remove the cover on the electrical component
compartment and locate the electrical
contactors.
3 Visually inspect the contact points of each
contactor for the following items:
· Excessive burns
· Excessive arcs
· Excessive pitting
Replace the contactors if any
damage is found.