Generator Overhaul

DISASSEMBLY PROCEDURE



TOOLS REQUIRED
^ J 42072 Rear Brake Backing Plate Bolt Remover
^ J 35669 Strut Rod Nut Remover and Installer

Only the following generator components are serviceable:
^ The pulley (3)
^ The front bearing
^ The regulator
^ The rear cooling duct

If any of the following components need replacement, replace the generator:
^ The rear bearing
^ The rectifier bridge
^ The armature
^ The field coil
1. Remove the pulley nut using, J 42072 to hold the generator shaft while using J 35669 to loosen the pulley nut.
2. Remove the following pulley components:
^ The nut
^ The washer
^ The pulley
^ The spacer




3. Remove the generator cooling duct cap:
^ Remove the generator cooling duct screws (2).
^ Remove the generator cooling duct (1).




4. Remove the voltage regulator:
^ Remove the voltage regulator screw (2).
^ Remove the voltage regulator (1).




5. Remove the frame end bolts (2).
6. Separate the generator frame ends. (The rotor will remain with the drive end frame.)




7. Remove the rotor from the drive end frame.
^ Support the generator drive end frame.
^ Lightly tap on the rotor using a soft mallet in order to separate from the drive end frame.
8. Remove the front bearing screws (1).
9. Remove the front bearing retainer (4).
10. Remove the front bearing (3) from the drive end frame (2).

ASSEMBLY PROCEDURE



1. Press the front bearing to the drive end frame using a suitable driver.
2. Install the front bearing retainer (4).
3. Install the front bearing retainer screws (1).
4. Install the rotor to the drive end frame:
^ Support the rotor.
^ Lightly tap on the drive end frame in order to seat the rotor.




5. Assembly the drive end and slip ring end frames.

NOTE: Refer to Fastener Notice in Cautions and Notices.

6. Install the generator frame end bolts (2).

Tighten
Tighten the bolts to 5 N.m (44 lb in).




7. Install the voltage regulator:
^ Position the voltage regulator (1).
^ Install the voltage regulator screws (2).

Tighten
Tighten the screws to 1.5 N.m (13 lb in).




8. Install the generator cooling duct:
^ Position the generator cooling duct (1).
^ Install the generator cooling duct screws (2).

Tighten
Tighten the screws to 1 N.m (9 lb in).




9. Install the following pulley components:
^ The spacer (4)
^ The pulley (3)
^ The washer (2) with the beveled side toward the generator
^ The nut (1)
10. Tighten the pulley nut using, J 42072 to hold the generator shaft while using J 35669 to tighten the pulley nut.

Tighten
Tighten the pulley nut to 65 N.m (48 lb ft).