It is necessary to locate or fabricate a press tool for this procedure. Refer to [Figure 30-31-11] for the correct dimensions of the tool needed.
A hydraulic press, slide hammer with puller end and snap ring pliers are also recommended for this procedure.
Remove the motor carrier shaft seal. (Refer to Shaft Seal Removal And Installation on Page 30-20-1).
Remove the snap ring (Item 1) [Figure 30-31-12] from the motor carrier shaft using the snap ring pliers.
Put the motor carrier in the hydraulic press as shown [Figure 30-31-13].
Use 2-1/4 inch driver tool and press the sprocket shaft out of the motor carrier housing [Figure 30-31-13].
NOTE: The outer bearing will now be free from the sprocket shaft.
Remove the housing from the press and install a bearing puller (Item 1) [Figure 30-31-14] on the sprocket shaft.
Put the assembly in the hydraulic press. Use the same tool driver and remove the bearing (Item 2) [Figure 30-31-14] from the shaft.
Fasten the carrier motor housing to the work surface securely with the inner bearing race (Item 1) [Figure 30-31-15] facing up.
Install the slide hammer with puller end (Item 2) [Figure 30-31-15] on the bottom side of the bearing race.
Remove the bearing race from the carrier housing [Figure 30-31-15].
Put the motor carrier housing in the hydraulic press as shown [Figure 30-31-16].
Use a 3-7/8 inch driver tool and press the outer bearing race from the housing.
Check all parts for wear and damage. Replace the bearing race when new bearings are to be installed.
Put the motor carrier housing in the press as shown [Figure 30-31-17].
Use 4-5/16 inch driver tool and press the new inner bearing race into the motor carrier housing [Figure 30-31-17].
Press the bearing race in until it is fully seated in the carrier housing.
Turn the motor carrier housing over as shown [Figure 30-31-18].
Use 4-5/16 inch driver tool and press the new outer bearing race into the motor carrier housing [Figure 30-31-18].
Press the bearing race in until it is fully seated in the carrier housing.
Use the fabricated press tool (Item 1) and 3.0 inch driver tool, install the new inner bearing (Item 2) [Figure 30-31-19] on the sprocket shaft as shown.
Remove the press and drive tools from the sprocket shaft.
Put the motor carrier housing (Item 1) [Figure 30-31-20] over the sprocket shaft as shown.
Put the outer bearing over the end of the sprocket shaft and press the bearing on with the press tool and driver tool [Figure 30-31-20].
Remove the press and driver tools from the sprocket shaft.
Put the snap ring (Item 1) [Figure 30-31-21] over the end of the sprocket shaft.
NOTE: Use the snap ring pliers to spread the snap ring so it will fit over the sprocket shaft.
Using the press and driver tools, press the snap ring (Item 1) [Figure 30-31-21] over the sprocket.
Press the snap ring on until it snaps into the groove on the shaft.
Put a new shaft seal (Item 1) [Figure 30-31-22] on the sprocket shaft.
Use MEL1420 Carrier Seal Tool (Item 1) [Figure 30-31-23] and install the shaft seal.
Hit the tool with a hammer until the seal is fully seated on the carrier shaft [Figure 30-31-23].
Check the end play of the motor carrier as follows:
Use a rubber mallet [Figure 30-31-24], tap down on the cluster shaft.
Install a dial indicator as shown in Photo [Figure 30-31-25].
Use a pry bar (Item 1) [Figure 30-31-25] to lift the carrier shaft and read the end play on the dial indicator.
The carrier shaft must turn freely with end play not to exceed 0.007 in. (0,17 mm).
