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Replacing the Tracks
When the tracks are badly worn, replace them.
1.
Park the machine on a level surface, engage the
parking brake, and lower the boom.
2.
Shut off the engine and remove the key.
3.
Lift and support the side of the unit to be worked
on so that the track is 7.6 to 10 cm (3 to 4
inches) off the ground.
4.
Back out the tensioning bolt and jam nut
56).
5.
Loosen the clamp bolts
6.
Push the front road wheel rearward as far as it
can goes
(Figure
Figure 57
1. Front road wheel
7.
Begin removing the track at the top of the front
road wheel, peeling it off the wheel while rotating
the track forward.
Note:
You may need to remove the front,
outside road wheel. To remove it, remove the
snap ring and cap from the center of the road
wheel
(Figure
58). Next remove the bolt and
gasket from the center of the wheel and pull the
wheel off the machine.
(Figure
56).
57).
(Figure
1. Snap ring
2. Cap
3. Bolt
8.
When the track is off the road wheel, remove it
from the machine
9.
Beginning at the drive wheel, coil the new track
around the wheel, ensuring that the lugs on
the track fit between the spacers on the wheel
(Figure
10.
Push the track under and between the rear and
center road wheels
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
g007835
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 102 N∙m
(75 ft-lb) and then clean, grease, and install the
cap and snap ring as instructed in the
and Greasing the Road Wheels (page
13.
Install the tensioning bolt and jam nut.
14.
Torque the tensioning bolt to 32.5 to 40 N∙m (24
to 30 ft-lb) to tighten the track.
15.
Ensure that the track deflects less than 0.6 to 1
cm (1/4 to 3/8 inch) when 20.6 kg (45 lb) 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 102 N∙m
(75 ft-lb).
18.
Lower the machine to the ground.
19.
Repeat the procedure to replace the other track.
41
Figure 58
4. Gasket
5. Wheel with bearings
(Figure
57).
57).
(Figure
57).
g242269
Checking
42).
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