JLG 600SC_660SJC Service Manual - Manual (Page 106)

SECTION 6 - UNDERCARRIAGE
6-2 – JLG Lift – 3120898
after opening the relief valve, move the machine for-
ward and backward until the tension is released.
3. Loosen bolt (2) that holds track carrier roller (3) to
the mounting bracket to the undercarriage frame.
4. Put wood blocks and tooling (A) under the track
assembly as shown. Lift the track assembly off the
track carrier roller. Remove track carrier roller (3).
The weight of the track carrier roller is 26 lb. (12 kg).
Installation
1. Be sure the shaft of the track carrier roller and the
bore in the mounting bracket on the undercarriage
frame are clean and free of dirt.
2. Put the track carrier roller in position in the mounting
bracket. Adjust the carrier roller until distance B, the
distance between the outside face of the mounting
bracket and the carrier roller is (0.28 ± 0.02 inch)
(7.0 ± 0.5 mm).
3. After adjusting the position of the carrier roller in the
mounting bracket, tighten bolt (2).
4. Be sure that the carrier roller rotates smoothly by
hand. Slowly lower the track assembly to the carrier
roller with tooling (A).
5. Tighten the tension of the track.
Disassembly
1. Thoroughly clean the outside of the track carrier
roller prior to disassembly.
NOTE: Care must be taken to ensure that fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting, and repair of the machine.
Be prepared to collect the fluid with suitable contain-
ers before opening any compartment or disassem-
bling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.