Toro 07390 Workman HDX-Auto, Руководство по обслуживанию, Страница: 249 / 280

Workman HDX Auto Page 8 − 5 Four Wheel Drive (Optional Kit)
Test CV Axle
NOTE: A worn and noisy CV axle joint with the boot in
good condition and filled with grease is not uncommon.
Potholes, curb contact or collision damage can damage
bearing components and initiate worn conditions.
1. Test drive vehicle on a smooth surface to verify CV
axle joint problem.
2. Accelerate or back−up vehicle slowly with the front
wheels turned. Listen for snapping or clicking noise at
the wheel, then drive straight ahead.
A. If the noise remains constant, the wheel bearing
is the likely problem and, if so, the wheel hub assem-
bly must be replaced.
B. If the noise gets louder when turning, the out-
board CV axle joint is likely worn. A badly worn joint
will snap or click when driving straight ahead, howev-
er the noise will increase when accelerating or back-
ing up into a turn.
3. Accelerate vehicle straight ahead quickly. Vibration
or shudder often indicates a worn or sticking inboard CV
joint.
4. Accelerate vehicle over a ramp or up a hill. A clunking
noise indicates a worn inboard CV joint.
5. If any CV axle components other than the boots are
worn or damaged, the CV axle assembly must be re-
placed.
Disassembly (Fig. 1)
1. Park vehicle on a level surface, shut engine off, re-
move key from ignition switch and apply parking brake.
2. For CV axle to be removed, remove wheel assembly,
brake caliper and brake rotor (see Brake System Disas-
sembly in the Service and Repairs section of Chapter 7
− Chassis).
3. Remove and discard spindle nut (item 1).
4. Using access hole in wheel hub (item 11), remove
screws that secure wheel hub to knuckle. Slide wheel
hub assembly from CV axle.
5. Remove axle spacer (item 10) from CV axle.
IMPORTANT: Make sure to not damage the oil seal
on the differential with the pry bars when removing
the CV axle.
6. Apply even pressure to two (2) small pry bars (180
o
apart) to leverage the CV axle out of the differential
(Fig. 2).
7. Pull CV axle through opening in knuckle and remove
from vehicle.
1. CV axle (LH shown) 2. Differential assembly
Figure 2
LEVERAGE
POINT
LEVERAGE
POINT
1
2
Assembly (Fig. 1)
NOTE: The inner end of the CV axle has a retaining ring
to keep axle engaged in differential. The outer end of the
axle has threads for the spindle nut (item 1).
1. Apply antiseize lubricant to splines on inner end of
CV axle.
2. Insert inner end of CV axle through knuckle and into
the differential. Press axle into differential until a snap is
heard.
IMPORTANT: After CV axle installation into differ-
ential, pull outward on CV axle as close as possible
to the differential to make sure that the axle is prop-
erly secured into the differential.
3. Place wheel spacer (item 10) onto CV axle.
4. Apply antiseize lubricant to splines on outer end of
CV axle.
5. Slide wheel hub onto CV axle. Loosely install four (4)
flange head screws (item 11) to locate wheel hub to
knuckle. Do not fully tighten screws.
6. Install new spindle nut (item 1) onto CV axle. Torque
spindle nut from 170 to 180 ft−lb (231 to 244 N−m). Af-
ter tightening nut, stake nut extension into slot in axle.
7. Fully tighten flange head screws to secure wheel hub
to knuckle. Torque screws from 35 to 40 ft−lb (48 to 55
N−m).
8. Install brake rotor, brake caliper and wheel assembly
(see Brake System Assembly in the Service and Re-
pairs section of Chapter 7 − Chassis).
9. Make sure that wheel lug nuts are properly tight-
ened.
Four Wheel Drive
(Optional Kit)