Toro TX 427 Series Operator's Manual page 36

Adjusting the Track Tension
There should be 7 cm (2-3/4 inches) between the tension nut
and the back of the tension tube
the track tension using the following procedure:
Figure 46
1. 7 cm (2-3/4 inches)
1. Lower the loader arms, shut off the engine, and remove
the key.
2. Lift/support the side of the unit to be worked on so
that the track is off the ground.
3. Remove the locking bolt and nut
Figure 47
1. Locking bolt
2. Tensioning screw
4. Using a 1/2 inch drive socket wrench, turn the
tensioning screw counter-clockwise until the distance
between the tension nut and the back of the tension
tube (Figure 46) is 7 cm (2-3/4 inches).
5. Align the closest notch in the tension screw to the
locking bolt hole and secure the screw with the locking
bolt and nut (Figure
6. Lower the traction unit to the ground.
(Figure 46). If not, adjust
(Figure 47).
3. Tension tube
4. Tension wheel
47).
Replacing the Tracks
When the tracks are badly worn, replace them.
1. Lower the loader arms, shut off the engine, and remove
the key.
2. Lift/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.
3. Remove the locking bolt and nut
4. Using a drive socket wrench (1/2 inch), release the
drive tension by turning the tensioning screw clockwise
(Figure 47 and Figure
1. Track
2. Socket wrench (1/2 inch)
3. Tension wheel
4. Tension tube
5. Push the tension wheel toward the rear of the unit to
move the tension tube against the frame
(If it does not touch the frame, continue turning the
tensioning screw until it does.)
6. Begin removing the track at the top of the tension
wheel, peeling it off the wheel while rotating the track
forward.
7. When the track is off the tension wheel, remove it from
the drive sprocket and road wheels
8. Beginning at the drive sprocket, coil the new track
around the sprocket, ensuring that the lugs on the track
fit between the cogs on the sprocket
9. Push the track under and between the road wheels
(Figure 48).
10. Starting at the bottom of the tension wheel, install the
track around the wheel by rotating the track rearward
while pushing the lugs into the wheel.
36
(Figure 47).
48).
Figure 48
5. Track lug
6. Drive sprocket
7. Sprocket cog
8. Road wheels
(Figure
(Figure 48).
(Figure
48).
48).