JLG M450 ANSI Service Manual - Manual (Page 59)

SECTION 3 - CHASSIS & TURNTABLE
3121127 – JLG Lift – 3-19
3.6 POSITRAC/TILT MODULE
When installing a new positrac/tilt module, always ensure
that it is calibrated using the JLG Control System analyzer
before operating the machine. Refer to Section 6, JLG
Control System Analyzer Kit Instructions. Use a standard
bubble level in two different directions to ensure that the
machine’s frame is level prior to installing the new posi-
trac/tilt module.
1. Place the machine on a flat, level surface. Check for
level by placing a bubble level on the frame in both
directions.
2. Plug in the analyzer (Analyzer - p/n 1600244, Cable -
p/n 1600633) into port J9 on the power module or
port J1 on the platform module.
3. Use the right arrow key to curse over to "ACCESS
LEVEL 2". Depress Enter.
4. Use Up/Down arrow keys to enter the following
password "33271". Depress Enter.
5. Use the right arrow key to curse over to "LEVEL
VEHICLE". Depress Enter. Depress Enter again.
6. Verify that the tilt reading is now "0.0; 0.0".
TO ASSURE PROPER OPERATION, THE MACHINE MUST BE LEVEL
WHEN INSTALLING AND CALIBRATING A NEW POSITRAC/TILT
MODULE.
TIRE AND WHEEL ASSEMBLY
DRIVE HUB
DRIVE
MOTOR
DRIVE
BRAKE
Apply Loctite #242
Torque to
165 foot-pounds
(224 Nm)
NOTE: Torque Wheel Lugs to
170 ft. lbs. (230 Nm)
Figure 3-8. Drive Components