Service Manual Instruction Manual

SECTION 4 - BOOM & PLATFORM
3121171 – JLG Lift – 4-77
10. Scroll through the analyzer menu until SERVICE MODE is
displayed. Press the ENTER key.
11. Scroll through the menu until the "MAIN LIFT?" is dis-
played as shown below.
12. Press the ENTER key. The control system will perform
several tests to make sure the machine is in the proper
position. If the axles are not extended or the turntable is
not centered between the rear wheels, the screen will
read:
If the tower boom angle sensors are calibrated and
operating properly, the control system will verify the
tower boom angle readings are less than +5°. If the
tower boom angle is outside the limit, the screen will
read: