Toro 22321 Operator's Manual page 34

inside the wheels, then fill this area on each side of
each wheel with grease.
11. Install the large washers on the wheels over the
grease.
12. Install the inner tension wheel and secure it with the
nut removed previously (Figure 43).
13. Torque the nut to 300 ft-lb (407 N-m).
14. Install the new track, ensuring that the lugs in the
track fit between the cogs in the middle of the drive
sprocket (Figure 43).
15. Install the outer tension wheel and secure it with the
nut removed previously (Figure 43).
16. Torque the nut to 300 ft-lb (407 N-m).
17. Turn the tensioning screw counter-clockwise until
the distance between the tension nut and the back of
the tension tube (Figure 40) is 2-3/4 inches (7 cm).
18. Align the closest notch in the tension screw to the
locking bolt hole and secure the screw with the
locking bolt and nut.
19. Repeat steps 2 through 18 to replace the other track.
20. Lower the traction unit to the ground.
Maintaining the Road Wheels
1. Remove the tracks; refer to Replacing the Tracks.
2. Remove the 4 bolts securing each lower track guide
which contains the road wheels, and remove them
(Figure 44).
1. Road wheels
2. Lower track guide
3. Remove the snap ring and cap from a road wheel
(Figure 45).
Figure 44
3. Track guide bolts (only two
shown)
1. Road wheel
2. Gasket
3. Bolt
4. Check the grease under the cap and around the
gasket (Figure 45). If it is dirty, gritty, or depleted,
clean out all of the grease, replace the gasket, and
add new grease.
5. Ensure that the road wheel turns smoothly on the
bearing. If it is frozen, replace the road wheel as
described in the Road Wheel Kit Installation Instructions
or contact your Authorized Service Dealer for repair.
6. Place the greased road wheel cap over the bolt head
(Figure 45).
7. Secure the road wheel cap with the snap ring
(Figure 45).
8. Repeat steps 3 through 7 for the other road wheels.
9. Install each track guide to the traction unit frame
using the fasteners you removed previously. Torque
the bolts to 67 to 83 ft-lb (91 to 112 N-m).
10. Install the tracks; refer to Replacing the Tracks.
34
Figure 45
4. Road wheel cap
5. Snap ring
6. Add grease under the cap