JLG X20JP - X600AJ Service Manual - Manual (Page 32)

SECTION 3 - CHASSIS & TURNTABLE
3-8 – JLG Lift – 3121623
3.2 UNDERCARRIGE COMPONENTS
a. Fully extend the undercarriage.
b. Remove the tracks (see paragraph 3.1).
c. Remove the key ignition, and a tag with warning
do not start the machine.
Figure 3-12.
Replacement roller lower wheel and tracks
adjuster
Figure 3-13.
Disassembly
1. Remove the nuts 2 on the lower roller.
2. Remove the lower roller 3.
3. Remove the front idler 5.
4. Remove the tracks adjuster 4.
ASSEMBLY
1. Fit the tracks adjuster 4.
2. Instal the front idler 5.
3. Instal the lower roller 3.
4. Apply loctite 243 and torque the nuts 2 on the lower
roller at 125Nm.
Replacement sprocket and Gear Motor
Figure 3-14.
Sprocket remove
1. Fully extend the undercarriage.
2. Remove the tracks (see paragraph 3.1).
3. Remove the key ignition, and a tag with warning do
not start the machine.
4. Remove screws 6.
5. Remove the sprocket 7.
Gear motor remove
1. Remove cover 9.
2. Disconnect and tag the hydraulic hoses from the
gearmotor.
3. Remove the valve 10 to access all the screws 11 (on
single speed versions only).
4. Remove the screws 11.
5. Remove the gearmotor 12.
1
4
5
3
2
1
6
7
11
9
8
12
10
12
11