4 - 14
Genie Z-45/25 & Genie Z-45/25J
Part No. 52709
First Edition • Second Printing
Section 4 • Scheduled Maintenance Procedures
A-14
Test the Limit Switches
Drive Limit Switches
Detecting limit switch malfunctions is essential to
safe machine operation. The drive limit switches
are used to restrict drive speed when the boom is
raised or extended. An improperly functioning drive
limit switch will allow the machine to operate at an
unsafe drive speed.
1 Remove the hose and cable cover from the rear
of the upper mid-pivot.
2 Locate the primary boom drive limit switch
located on the inside of the upper mid-pivot.
3 Visually inspect primary boom drive limit switch
for the following:
· Broken or missing roller or arm
· Missing fasteners
· Loose wiring
4 Manually activate the primary boom drive limit
switch.
Result: The primary boom drive limit switch arm
should move freely and spring return to center.
A distinct click should be felt and heard.
a
primary boom drive limit switch (LS2)
TABLE
A
PROCEDURES
5 Locate the secondary boom drive limit switch
located at the platform end of the lower
secondary boom.
a
secondary boom drive
limit switch (LS3)
6 Visually inspect secondary boom drive limit
switch for the following:
· Broken or missing roller or arm
· Missing fasteners
· Loose wiring
7 Manually activate the secondary boom drive
limit switch.
Result: The secondary boom drive limit switch
arm should move freely and spring return to
center. A distinct click should be felt and heard.
a
a
Содержание Z-45 XC
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