Disassembly Procedure

DISASSEMBLY PROCEDURE




1. Make scribe marks (3) on the following components in order to ensure correct alignment during reassembly:
^ The drive end frame (1).
^ The slip ring end frame (2).




2. Remove the 4 through bolts.
3. Separate the slip ring end frame and the drive end frame.




4. Remove the stator lead attaching nuts.
5. Remove the stator from the slip ring end frame.
6. Inspect the stator. Refer to step 1 in Inspection Procedure.




7. Tap the plastic dust shield retaining pin (2) inward just enough for the retaining clips to release.




8. Remove the brush holder screw.
9. Remove the voltage regulator insulated screw.
10. Remove the voltage regulator and the brush holder with the dust shield from the slip ring end frame as a unit.




11. Remove the dust shield from the brush holder. The brushes and springs will be loose inside.
12. Inspect the brush holder assembly. Refer to step 4.3 in Inspection Procedure. Perform the following actions:
12.1. Clean the brushes with a dry soft cloth.
12.2. Place the springs into the brush holder.
12.3. Turn each brush so that the wire aligns with the slot in the brush holder and push each brush into the holder. Verify the wires are looped loosely and are not pinched or kinked. Install a nonmetallic pin through the holes in the brush holder to hold the brushes in a retracted position for later reassembly.

NOTE: Avoid excessive heat during the soldering and unsoldering procedures. Excessive heat will damage the voltage regulator.

13. Inspect the voltage regulator. Refer to step 4.4 in Inspection Procedure. If needed, disassemble the voltage regulator, the brush holder and the connector strap assembly.
In order to disassemble the components:
^ Unsolder the connector clips between the voltage regulator and the brush holder, and between the voltage regulator and the connector strap.
^ Disassemble the parts while the solder is still soft.




14. Inspect the slip ring end assembly. Refer to step 4 in Inspection Procedure. If necessary remove the capacitor and the rectifier bridge.
^ Remove the bolts.
^ Remove the washers.
^ Disconnect the leads.
^ Remove the capacitor.
^ Remove the rectifier bridge.




15. Inspect the slip ring end bearing. It the bearing is dry or damaged, replace the bearing. Remove the slip ring end bearing only if necessary.




16. Inspect the drive end assembly. Refer to step 2 in Inspection Procedure. If necessary, disassemble the drive end assembly by removing the following parts from the drive end frame:
^ The nut
^ The washer
^ The pulley
^ The fan collar
^ The fan
^ The outside collar
^ The rotor
^ Remove the inside collar from the rotor.