12
ConMet
Conventional Wheel Hubs – Reinstallation
4. Conventional Wheel Hubs – Reinstallation
INSTALLING ConMet
CONVENTIONAL WHEEL
HUBS
Spindle Preparation
1. Clean the spindle to remove
any lubricant, corrosion
prevention coating, foreign
material, or surface rust that
may be present. Be sure to
clean the full length of the seal
journal.
2. Lubricate the bearing journals
on the spindle, or the inside
diameter of the bearing cones
with Grade 2 grease or the
lubricant that will be used in the
wheel end. Do not coat the seal
journal on the spindle.
3. Lubricate the inside diameter of
the seal with the same lubricant
that will be used in the wheel
end.
Failure to apply lubricant to the bearing journals
will result in fretting corrosion, which may
result in difficulty removing the bearing. Never
support the hub on the spindle with just the inner
bearing and seal. This can damage the seal and
cause premature failure, i.e, by cocking the seal
in the bore.
CAUTION
!
Conventional Hub Installation
Existing spindle nuts can be re-used as long as
they are in good condition. Do not re-use a spindle
nut that is worn or pitted on its face or threads.
NOTE
See TMC RP618 for more details regarding
installation of wheel hubs with manual adjusted
bearing systems.
NOTE
The following service procedures apply to
steer, drive, and trailer axle assemblies using
conventional double nut or single nut systems.
For self-locking single nut systems, consult
manufacturers’ instructions.
NOTE
1. Lubricate the bearings with
clean lubricant of the same type
used in the axle sump or hub
assembly.
2. Install the wheel hub and
bearing onto the axle spindle
with a smooth, firm motion.
Use care to maintain alignment
between the bearing cones,
and spindle to avoid seal
damage. Torque the inner
adjusting nut to 200 ft-lbs while
rotating the hub assembly.
3. Back off the inner adjusting nut
one full turn. Rotate the hub.
4. Re-torque the inner adjusting
nut to 50 ft-lbs while rotating the
wheel hub assembly.
5. Back off the inner adjustment
nuts as per the Manual Bearing
Adjustment Procedure table
(next page).
6. Install the locking washer.
If dowel pin and washer (or washer tang and nut
flat) are not aligned, remove the washer, turn it
over, and reinstall. If required, loosen the inner
(adjusting) nut just enough for alignment.
NOTE
Bendable type washer lock only: Secure nuts by
bending one wheel nut washer tang over the
inner and outer nut. Bend the tangs over the
closest flat perpendicular to the tang.
NOTE
7. Install and torque the outer jam
nut as per chart on next page.
8. Use a dial indicator to verify
acceptable endplay of 0.001"-
0.005".
If end play is not within specification,
readjustment is required. Be sure to install or
activate any locking device.
NOTE
This information is intended for reference only.
Consolidated Metco inc. does not assume any
liablity in the event of improper use or mismatch
of components. For additional information, see
TMC RP618.
NOTE