Bearing Cup Refitment; Regrease Bearings; Refit Inner Bearing; Fit New Oil Seal - Meritor LM Series Maintenance Manual

4 Hub Service & Replacement
NOTE:
It is advisable to replace with a complete new hub and
bearing assembly which is available from Meritor CVA
Distributors.
INDIVIDUAL BEARING REPLACEMENT PROCEDURE
Drift out the bearing cup from the hub ensuring that the bearing
bore within the hub is not damaged.

BEARING CUP REFITMENT

Ensure the hub cavity is clean and free from visual damage,
debris, burrs or any oxidation.
CAUTION
: The bearing 'Cups' and 'Cones' are
clearly marked by manufacturer type for
identification. Never assemble a bearing using a 'Cup' from
one manufacturer with a 'Cone' from a different
manufacturer. Always check the bearing components are
from the same manufacturer before assembly continues.
CAUTION
: Always use genuine MERITOR Bearings -
STANDARD ISO BEARINGS CANNOT BE USED.
Insert the bearing cup into the hub and using a bearing cup driver
(Meritor CVA part number MST 3103) drive the cup fully home
ensuring the cup sits squarely against the hub shoulder.
Check the bearing cup is retained correctly. Grip the bearing cup
and ensure there is no axial or rotational movement present.

REGREASE BEARINGS

Thoroughly pack both bearing cones with Meritor Hub Grease,
Blue Lithium EP2. The grease should be concentrated in the space
between the roller cage and cone raceway. Refer to Section 11
for correct grease quantities. Refill the bearing cavity. Refer to
Section 11 for correct grease quantity.
NOTE
: Greased bearings should always be placed in a clean
area.
CAUTION:
Only use the grease supplied with
replacement components/kits, or that specified.
Under no circumstance should any other type of grease be
used.

REFIT INNER BEARING

Refit inner bearing cone into the inner bearing cup pressing fully
home to assist location of oil seal driver.

FIT NEW OIL SEAL

Apply 15 - 20gm of Meritor Hub Grease, Blue Lithium EP2 to the
cavity of the new seal, working the grease in evenly around the
circumference of the seal.
Apply a light smear of Meritor Hub Grease, Blue Lithium EP2 to
the bore of the oil seal.
Press the new oil seal onto the oil seal driver (Meritor CVA part
number MST 3106) ensuring the 'OIL SIDE' marking on the seal is
visible (i.e. faces away from the plate of the driver) such that the
seal will be installed the correct way round in the hub.
Locate the nose of the driver into the bore of the inner bearing
cone and drive the seal fully home ensuring the seal remains
square to the hub at all times (Fig. 4.7). The outer face of the seal
should be flush with the back face of the hub when fully installed
. Fig. 4.7
Check the hub cavity grease and top up as necessary with Meritor
Hub Grease, Blue Lithium EP2. Refer to Section 11 for correct
grease quantity.
NOTE
: The grease must be ditributed evenly within the cavity
between the inner and outer bearings. Ensure the bearing bore/s
are clean and free from any excess grease.
CAUTION:
Only use the grease supplied with
replacement components/kits, or that specified.
Under no circumstance should any other type of grease be
used.
Meritor Inc. LM & LC Series Axle
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