Test Rear Cv Axle; Disassembly; Assembly - Toro Workman HDX Auto Service Manual

Test Rear 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
CV axle bearing components and initiate worn condi-
tions.
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 assembly
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 quickly and straight ahead. Vibra-
tion or shudder often indicates a worn or sticking inboard
CV axle joint.
4. Accelerate vehicle at an angle over a ramp or up a
hill. A clunking noise may indicate a worn inboard CV
axle 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. 38)
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 rear wheel as-
sembly, brake caliper and brake rotor (see Brake Sys-
tem in the Service and Repairs section of Chapter 5 −
Chassis).
IMPORTANT:If staked−in portion of spindle nut
(item 6) is not released before nut removal, CV axle
may be damaged. Follow spindle nut removal proce-
dure listed in Wheel Hub in the Service and Repairs
section of Chapter 5 − Chassis.
3. Remove rear wheel bearing hub (item 8) from axle
(see Wheel Hub in the Service and Repairs section of
Chapter 5 − Chassis).
IMPORTANT: Make sure to not damage the oil seal
on the differential with the pry bars when removing
the CV axle.
Workman HDX Auto
2
LEVERAGE
POINT
1. CV axle (LH shown)
4. Use two small pry bars (180
CV axle out of the differential. Use even pressure on
both pry bars (Fig. 39).
5. Pull CV axle through opening in rear axle and remove
from vehicle.
Assembly (Fig. 38)
NOTE: The inner end of the CV axle has an O−ring and
the outer end of the axle has threads for the spindle nut.
1. Apply antiseize lubricant to splines on inner end of
CV axle.
2. Insert inner end of CV axle through rear axle opening
and into the rear differential. Press axle into differential
until a snap is heard.
IMPORTANT: After CV axle installation into differen-
tial, pull outward on CV axle as close as possible to
the differential to make sure that the axle is properly
secured into the differential.
3. Apply antiseize lubricant to splines on outer end of
CV axle and slide wheel bearing hub (item 8) onto CV
axle making sure to align hub and axle splines. Loosely
install four (4) flange head screws (item 7) to locate
wheel hub to rear axle. Do not fully tighten screws.
4. Install new spindle nut (item 6) 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 CV
axle.
5. Fully tighten flange head screws to secure wheel hub
to rear axle. Torque screws from 35 to 40 ft−lb (48 to 55
N−m).
6. Install brake rotor, brake caliper and wheel assembly
(see Brake System and Wheel Assembly in the Service
and Repairs section of Chapter 5 − Chassis).
Page 4 − 33
LEVERAGE
POINT
1
Figure 39
2. Differential assembly
o
apart) to leverage the
Drive Train