Seal Assembly - Meritor MM-0164 Maintenance Manual

3 Part 1 - Hub reduction with 3 - 4 planets
Wheel end with unitized bearing
Fig. 3.1
Fig. 3.2
Fig. 3.3
22 Meritor Wheel end assembly
Spring Lip

Seal Assembly

First insert the axle shaft into the housing. Fig. 3.1
Take the dedicated tool and place the seal into the tool bore in
the right position i.e. with spring's lip toward the spindle or
external to the tool. Fig. 3.2
Press the seal into the spindle bore. Fig. 3.3
The tool (through its shape) drives the seal into the spindle,
leaving the proper seal protrusion, avoiding any seal distortion.
Fig. 3.4
Fig. 3.4
Protrusion