Toro Groundsmaster 7210 Service Manual page 282

Disassembling the Front Castor Wheels (continued)
Assembling the Front Castor Wheels
Chassis: Service and Repairs
6. Support the castor fork to prevent it from falling. Remove the locknut (item 18
in Figure 196) from the castor fork and slide the castor fork from the machine.
7. Remove the 3 belleville washers and upper bearing cone from the carrier
frame. Note the orientation of the washers while removing them
Note: The belleville washer orientation is critical for proper movement of
the castor wheel.
8. Remove and discard the seal (item 15 in
9. Remove the lower bearing cone from the frame.
10. Inspect the bearing cups in the carrier frame for wear or damage. If the
bearing cups are damaged, remove the bearing cups from the frame and
replace them.
11. If necessary, remove the spacers, seals, and bearings from the castor wheel
(Figure 198).
12. Inspect the wheel components and replace all the components that are worn
or damaged.
1. If the components were removed from the castor wheel, assemble the castor
wheel (Figure 198) as follows:
A. Press the bearing cups into the castor wheel until they are flush with
the shoulder in the wheel
B. Install the grease packed bearing cone into the wheel.
C. Install the seals into the wheel.
D. Carefully install the bearing spacers and then the castor spacer into the
wheel.
2. If the bearing cups were removed from the carrier frame, press new cups into
the carrier frame until they are flush with shoulder in the frame.
3. Pack the 2 bearing cones with new grease. Place the grease packed bearing
cone into the lower bearing cup of the carrier frame.
Note: Ensure that you do not damage the seal.
4. Install new seal. Slide the castor fork up through the carrier frame.
5. Position the grease packed bearing cone onto the castor fork. Place the 3
belleville washers onto the castor fork and note the orientation as shown in
Figure 197.
After you correctly tighten the locknut that secures the castor fork
to the carrier frame, it should take 7.3 to 8.5 N∙m (65 to 75 in-lb) to
rotate the castor fork.
6. Install the locknut onto the castor fork and tighten the locknut until the castor
fork requires 7.3 to 8.5 N∙m (65 to 75 in-lb) to rotate.
7. Remove the plug (item 8 in
grease gun through the plug hole in the frame, fill the area surrounding the
castor fork shaft with grease. Allow grease to fill the cavities below the lower
bearing, between the bearings, and above the upper bearing. Install the plug
again into the frame.
Figure
IMPORTANT
Figure 196) from the carrier frame. Use the
Page 6–20
(Figure
196) from the carrier frame
Groundsmaster 7210
16222SL Rev C
197).