Spicer Wheel Ends Service Manual, Steer & Drive Wheel Ends - Manual (Page 34)

32
LMS Assembly
between the bearing cones and spindle and to avoid
seal damage.
Never support the hub on the spindle with just the inner
bearing and seal. This can damage the seal and cause pre-
mature failure.
13. Remove the installation tool from the hub assembly.
LMS Drive Axle Spindle Nut Installation
Procedure
Four-Piece Spindle Nut System
Do not mix spindle nuts and lock washers from different
systems. Mixing spindle nuts and lock washers can cause
wheel separation.
1. Install the inner spindle nut with dowel pin outward
and tighten.
2. While rotating wheel end, torque the inner nut:
• Drive Hubs 300-350 lb. ft. Do not back off.
3. Install the dowel type washer onto the axle spindle
aligning tab with keyway. If washer does not align
with dowel pin on inner nut, remove washer and turn
over and reinstall. If after this, washer still does not
align with dowel pin, tighten inner nut just enough
for alignment. Never tighten the nut more than half
the distance between the holes.
NEVER back off the spindle nut to align dowel pin with
dowel washer.
When using LMS Hub, always install the identification tag.
4. Install the identification tag onto the spindle over the
outside diameter of the dowel-type lock washer, with
the anti-rotation bosses inboard and over the flats of
the inner spindle nut.
Note: The identification tag is retained between the tang-type
lock washer and the inner nut.
5. Install the outer wheel nut on the spindle and
tighten.
6. Torque the outer spindle nut to 200±50lb. ft.
Note: If the washer tang and nut flat are not aligned, remove
washer, turn it over and reinstall. If required, tighten the
outer nut just enough for alignment.
NEVER back off the spindle nut to align tang-type washer
with spindle nut flats.
7. Secure the outer nut by bending two opposing
(180 degrees apart) tangs of the tang-type washer
over two flats of the outer nut.
Attempts to measure wheel endplay of the LMS hub system
may result in false readings. If endplay measurements are
attempted, use a precision dial indicator. Apply a strong
push on the hub while rotating the hub back and forth. Work
the hub until the dial indicator shows no additional move -
ment. Then apply a strong pull while rotating the hub back
and forth. Work the hub until the dial indicator shows no
additional movement. Endplay measurements greater than
0.005" may indicate a need to verify the correct compo-
nents were used and the spindle nut was installed per the
specifications.
LMS hub components are made to special tight tolerances.
Installation and/or servicing with other components will
increase wheel endplay reducing bearing and seal life.
CAUTION
WARNING
Spindle
Inner Nut
Dowel Pin
Dowel-type
lockwasher
ID Tag
Tang-type
washer
Outer Nut
Note: Optional 3 piece nut system is available
CAUTION
CAUTION
WARNING
CAUTION