Toro Workman 3000 Series, Руководство по обслуживанию

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Rev. B
Workman 4000 Series Page 10 – 5 Front Wheel Drive (4WD)
7. Remove four cap screws and lock washers securing
the brake assembly (19) to the axle housing. Position
brake assembly away from the housing.
8. Remove cotter pin and slotted hex nut from the tie
rod end assembly. Separate tie rod end from the axle
housing.
9. Remove axle housing as follows (Fig. 2):
A. Remove cotter pin and slotted hex nut from the
upper ball joint. Separate upper ball joint from the
axle housing.
B. Remove cap screw (6) and lock nut (5) from axle
housing.
C. Remove cotter pin and slotted hex nut from the
lower ball joint. Separate lower ball joint from the axle
housing. Remove axle housing from the CV joint.
D. Remove remaining inner bearing cone.
Inspection (Fig. 1)
IMPORTANT: If any part of a bearing assembly (16)
needs replacement, replace bearings as a matched
set.
1. If any foreign material is in the bearing, clean bearing
and determine source of the material. Replace bearings
(16) if any of the following conditions occur (Fig. 3):
A. Spalling or pitting on roller or cone contact sur-
faces. Corrosion that can not be cleaned up with light
polishing.
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 roll-
ers. Scalloping, high spots, brinelling or burrs in the
cups.
D. The seal attached to the bearing cone is cracked,
torn or damaged.
2. If ball joint seals are torn or cracked, replace seals
and lubricate ball joints.
3. Replace worn or cross–threaded wheel studs or
wheel nuts.
4. Replace wheel bearing spacer (20) if worn or dam-
aged.
1. Axle housing
2. Cotter pin
3. Slotted hex nut
4. Upper ball joint
5. Lock nut
6. Cap screw
7. Lower ball joint
8. CV joint
9. Ball joint seal
10. Inner bearing cone
Figure 2
9
5
3
4
9
2
6
7
8
1
10
80 to 90 ft–lb
(108 to 122 N–m)
Figure 3
SEAL
CONE
CUP
CAGE
ROLLER
Assembly (Fig. 1)
1. If hex bolts and lock washers were removed from the
stub axle:
A. Thoroughly clean threads of hex bolt and stub
axle. Apply Loctite #680 (or equivalent) to threads of
hex bolt closest to bolt head.
B. Install hex bolt with lock washer into stub axle.
Torque bolt from 40 to 60 ft–lb (54 to 81 N–m).
Front Wheel
Drive (4WD)