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Replace Rubber Track
1. Thoroughly wash entire chassis and all components.
Note: Rubber track assemblies weigh 263 kg (580 lb) each.
2. Position machine on a firm level surface near an over-
head lifting device. Ensure boom is in the lowered and
stowed position.
3. Rotate turntable as needed for unrestricted access to
side of chassis having track replaced.
DO NOT REMOVE GREASE FITTING COMPLETELY UNTIL TRACK TENSION IS
RELEASED. GREASE IS UNDER PRESSURE. FITTING COULD FLY OFF AND CAUSE
INJURY.
4. Remove track tensioner coverplate. Unscrew grease
valve until grease starts to come out of slot, then
unscrew three more turns.
Figure 3-4. Grease Valve
5. Place a hydraulic floor jack beneath front chassis exten-
sion nearest idler wheel.
Figure 3-5. Floor Jack Location
31215019
Grease
Discharge Slot
SECTION 3 - CHASSIS & TURNTABLE
6. Jack up chassis to remove weight from lower rollers.
7. Attach a sling through top of the track and lift. This will
compress the idler cylinder assembly.
Figure 3-6. Lift Track and Compress Idler Cylinder
8. With idler cylinder compressed, lower track.
9. Remove rubber track starting at idler using large pry bar.
Move forward to drive sprocket until entire track is
removed.
Figure 3-7. Remove Rubber Track
10. Position new rubber track in correct direction of travel.
Figure 3-8. Rubber Track Direction of Travel
3-3
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