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Replacing the Tracks
When the tracks are badly worn, replace them.
1. Lower the boom and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Lift/support the side of the unit to be worked on
so that the track is 3 to 4 inches (7.6 to 10 cm) off
of the ground.
4. Back out the tensioning bolt and jam nut (Figure 48).
5. Loosen the clamp bolts (Figure 48).
6. Push the front road wheel rearward as far as it will
go (Figure 49).
Figure 49
7. Begin removing the track at the top of the front road
wheel, peeling it off of the wheel while rotating the
track forwards.
Note: You may need to remove the front, outside
road wheel. To remove this wheel, remove the snap
ring and cap from the center of the road wheel
(Figure 50). Next remove the bolt and gasket from
the center of the wheel and pull the wheel off of the
machine.
1. Snap ring
2. Cap
3. Bolt
8. When the track is off of the road wheel, remove it
from the machine (Figure 49).
9. Beginning at the drive sprocket, coil the new track
around the sprocket, ensuring that the lugs on
the track fit between the spacers on the sprocket
(Figure 49).
10. Push the track under and between the rear and center
road wheels (Figure 49).
11. Starting at the bottom of the front road wheel, install
the track around the wheel by rotating the track
rearward while pushing the lugs into the wheel.
12. If you removed the front, outside road wheel, install
it at this time using the bolt and gasket removed
previously. Torque the bolt to 75 ft-lb (102 N-m)
and then clean, grease, and install the cap and snap
ring as instruction in the Checking and Greasing the
Road Wheels section.
13. Install the tensioning bolt and jam nut.
14. Torque the tensioning bolt to 24 to 30 ft-lb (32.5 to
40 N-m) to tighten the track.
15. Ensure that the track deflects less than 1/4 to 3/8
inch (0.6 to 1 cm) when 45 lb (20.6 kg) of force is
applied to the track span. Adjust the torque on the
tensioning bolt as needed.
16. Tighten the jam nut.
17. Tighten the clamp bolts and torque to 75 ft-lb (102
N-m).
18. Lower the machine to the ground.
19. Repeat steps 3 through 18 to replace the other track.
35
Figure 50
4. Gasket
5. Wheel with bearings
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