Service Manual

SECTION 3 - CHASSIS & TURNTABLE

3121202 – JLG Lift – 3-19

Shaft Seal Replacement

REMOVAL

1. Remove the snap ring (1) retaining the shaft seal

and support washer.

2. Remove the support washer (2).

3. Carefully pry out the shaft seal (3).

To avoid damaging the shaft during removal, install

a large sheet metal screw into the chuck of a slide

hammer. Drive the screw into the seal surface and

use the slide hammer to pull the seal.

4. Discard the seal.

INSPECT THE COMPONENTS

Inspect the new seal, the motor housing seal bore, and

the sealing area on the shaft for rust, wear, and contami-

nation. Polish the shaft and clean the housing if neces-

sary.

INSTALLATION

1. Cover the shaft splines with an installation sleeve to

protect the shaft seal during installation.

2. Install a new shaft seal with the cupped side facing

the motor. Press seal into housing until it bottoms

out. Press evenly to avoid binding and damaging

the seal.

3. Install seal support washer.

4. Install snap ring.

5. Remove the installation sleeve.

1. Snap Ring

2. Support Washer

3. Shaft Seal

Figure 3-17. Removing the Shaft Seal