JLG 600SC_660SJC Service Manual - Manual (Page 76)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
4-14 – JLG Lift – 3121157
4.6 FRONT IDLER AND RECOIL SPRING
Removal
1. Position the machine onto suitable cribbing in order
to raise the track idler off the ground.
2. Separate the track. Refer Section 4.5, Track.
3. Attach a suitable lifting device onto front idler (1).
Slide front idler (1) and the hydraulic track adjuster
out of the undercarriage frame. The combined
weight of front idler (1) and the hydraulic track
adjuster is approximately 136 kg (300 lb).
4. Position suitable cribbing under hydraulic track
adjuster (2). Remove bolts (3). Remove front idler
(1). The weight of front idler (1) is approximately 68
kg (150 lb).
5. Attach a suitable lifting device on hydraulic track
adjuster (2). The weight of hydraulic track adjuster
(2) is approximately 68 kg (150 lb). Remove hydrau-
lic track adjuster (2).
Table 4-8. Front Idler & Recoil Spring Required Tools -
Remove
Required Tools
Tool Part Number Part Description Qty.
A 180-3033 Jack Stand Gp 1