Genie Industries Z-30/20, Руководство по обслуживанию

Страница: 26 / 150

4 - 6 Genie Z-30/20 Part No. 43063
Service Manual - Third Edition Section 4 - Scheduled Maintenance Procedures
A-10
Test the Drive Limit Switch
Detecting a drive limit switch malfunction is
essential to safe machine operation. The drive
limit switches are used to restrict drive speed
when the boom is raised. An improperly
functioning limit switch will allow the boom to drive
into an unsafe position.
1 With the boom in the stowed position, visually
inspect the drive limit switches for the
following:
· Broken or missing arms or rollers
· Missing fasteners
· Loose wiring
2 Turn the key switch to ground control and lift
the red Emergency Stop switch cover and
move the toggle switch to the
ON
position.
3 Activate the function enable switch and raise
the primary boom above the drive limit switch
and turn the machine off.
4 Manually activate the drive limit switch.
a secondary boom drive limit
switch location
b primary boom drive limit
switch location
Result: The drive limit switch arm should move
freely and spring return to center. A distinct
click should be felt and heard.
5 Turn the key switch to ground control and lift
the red Emergency Stop switch cover and
move the toggle switch to the
ON
position.
TABLE A PROCEDURES
a
6 Activate the function enable switch and lower
the primary boom into the stowed position.
7 Raise the secondary boom above the drive limit
switch and turn the machine off.
8 Manually activate the drive limit switch.
Result: The drive limit switch arm should move
freely and spring return to center. A distinct
click should be felt and heard.
9 Turn the key switch to ground control and lift
the red Emergency Stop switch cover and
move the toggle switch to the
ON
position.
10 Activate the function enable switch and lower
the secondary boom into the stowed position.
11 Turn the key switch to platform control and pull
out the Emergency Stop button to the
ON
position at the platform controls.
12 Slowly move the drive control handle off center.
Result: The machine should move at normal
drive speeds.
13 Raise the primary boom above the drive limit
switch.
14 Slowly move the drive control handle off center.
Result: The machine should move at a reduced
drive speed.
15 Lower the primary boom to the stowed position.
16 Raise the secondary boom above the drive limit
switch.
17 Slowly move the drive control handle off center.
Result: The machine should move at a reduced
drive speed.
Drive speed, 40 feet/40 seconds
maximum, raised 12.2 meters/40 seconds
b