Service Manual Instruction Manual

SECTION 4 - BOOM & PLATFORM
3121171 – JLG Lift – 4-71
17. Press the ENTER key to acknowledge the stability control
is turned off. The analyzer should read:
18. The control system will allow only tower lift (without
auto tower telescope) using the tower lift switch on the
ground console.
19. Activate tower lift enough to gain access to the tower lift
cylinder.
20. Use a crane or other suitable supporting device to sup-
port the weight of the tower and main boom assem-
blies.
NOTE: The tower and main boom assemblies weigh approxi-
mately 14000 lbs. (6350 kg).
21. Put a nylon strap capable of supporting the weight of
the lift cylinder around the cylinder.
NOTE: The tower lift cylinder weighs approximately 644 lbs. (292
kg).
22. At the rod end of the cylinder, remove the retaining bolt
and pivot pin that secures that end of the cylinder to the
tower boom.
23. At the barrel end of the cylinder, remove the sensor
cover to gain access to the sensor. Remove the angle
sensor, sensor arm, and sensor pin.
24. Loosen and remove the bolt that secures the retaining
pin and remove the retaining pin.