TRUCK SERVICE MANUAL
WHEELS, RIMS, TIRES
Unitized Seal Installation
If wheel is being changed to a unitized seal from
another type of seal, remove wear sleeve backing
plates or axle rings as they are no longer required.
Note the order of parts at disassembly to assure proper
Thoroughly clean all parts and remove all burrs from
spindle and hub bore. Inspect and replace all parts as
To install unitized seal in wheel, seat outer face of seal
in the recess of tool adapter SE-2524 (Fig. 8). Insert
centering plug of tool in bore of inner bearing cone (Fig.
9). Using the centering plug prevents cocking of the
seal in wheel bore. Bore-tite coating on seal fills in
minor imperfections in the wheel bore.
Hold tool handle firmly and strike until sound of impact
changes when seal is seated (Fig. 10).
NOTE: Seal must be reseated any time wheel
A good check of proper seal installation is to move the
synthetic sealing member with your fingers after installation in
wheel hub. There should be a slight in and out movement
MOUNTING WHEEL ON SPINDLE INSTRUCTIONS
(With Oil Lubricated Bearings)
To insure good starting lubrication fill wheel cavity
between the bearings with lubricant.
Front Axle: Fill wheel cavity with engine oil or rear
axle lubricant (see LUBRICATION, Section CTS-
Rear Axle: Fill with same gear lubricant as used in
the axle differential.
CTS-2032N Page 5
PRINTED IN UNITED STATES OF AMERICA