Front Wheel Bearing - Toro Workman 3000 Series Service Manual

Front Wheel Bearing

Disassembly (Fig. 2)
1. Park machine on a level surface. Make sure engine
is off. Set parking brake and block rear wheels.
2. Partially loosen lug nuts (1). Jack up and secure
front wheel off the ground (see Jacking Vehicle in Chap­
ter 1 – Safety). Remove lug nuts and wheel from the
brake drum (32).
3. Remove brake drum (32) from the cap screws (3)
and stub axle (31).
4. Remove flange lock nut (36) and flat washer (35)
from the threaded shaft of the CV joint (15) and stub axle
(31).
5. Pull stub axle (31) and bearing (14) cone from the
axle housing (28). Remove large spacer (30) and small
spacer from the axle housing. Remove remaining bear ­
ing (14) cone from the housing.
6. Remove cap screw (9) and flat washer (10) securing
the brake hose bracket (12) to the axle housing (28).
7. Remove four cap screws (6) and lock washers (7)
securing the brake assembly (5) to the axle housing
(28). Secure assembly clear of the housing.
8. Remove cotter pin (16) and slotted hex nut (17) from
the tie rod end assembly (20). Disconnect end assembly
from the axle housing (28).
9. Remove axle housing (28) from the suspension as
follows (Fig. 3):
A. Remove cotter pin and slotted hex nut from the
upper ball joint. Separate upper ball joint from the
axle housing.
B. Remove lock nut and cap screw from the axle
housing. Separate lower ball joint from the axle
housing. Separate axle housing from the CV joint.
C. Remove remaining bearing cone from the hous­
ing.
Inspection (Fig. 2)
IMPORTANT:If any part of a bearing (14) needs re-
placement, replace bearings as a matched set.
1. If foreign material is in the bearing, clean bearing
and determine cause of the material. Replace bearings
(14) if any of the following conditions occur (Fig. 4):
A. Spalling or pitting on roller or cone contact sur-
faces. Corrosion that can not be cleaned up with
light polishing.
Workman 4000 Series
4
9
1
2
6
9
7
1. Axle housing
2. Cotter pin
3. Slotted hex nut
4. Upper ball joint
5. Lock nut
CUP
CAGE
B. The rib face on the cone is worn back, or roller
ends are worn or scored. The roller cage is cracked
or broken.
C. Peeling, gouges, or nicks inside the cup or on
rollers. Scalloping, high spots, brinelling, or burrs in
the cups.
D. The seal attached to the bearing cone is
cracked, torn, or damaged.
Rev. B
Page 10 – 5
3
5
10
Figure 3
6. Cap screw
7. Lower ball joint
8. CV joint
9. Ball joint seal
10. Bearing cone
SEAL
ROLLER
CONE
Figure 4
Front Wheel Drive Section (4WD)
8