Remove self--locking nut

TM 9- 2920- 224- 34&P

DISASSEMBLY OF THE GENERATOR ASSEMBLY - CONTINUED

0008 00

an. Remove self--locking nut (42), flat washer (29), plain nut (43), lockwasher (44), flat washer (29), and ground

lead assembly (32) from housing (26).

ao. Using capacitor test set and a multimeter, measure through circuit and capacitance of filter capacitors. Each

capacitor has a through--circuit between end terminals, except the dual capacitor has two independent

through circuits. In all components, measure capacitance between a terminal and the mounting foot. A

terminal for each through circuit and common mounting foot for dual capacitor must be used.

ap. Large capacitor shall measure 1.75 mfd, and each circuit of the dual capacitor shall measure 0.25 mfd.

aq. Check dielectric strength of each capacitor with the test set. Replace any capacitor that breaks down under

test.

NOTE

Brush springs (45) can be inspected and tested without

removing them from brush holder assembly (46).

ar. If replacement is required, remove each brush spring (45) from spring--holding tab on brush holder assembly (46).

as. Remove two self--locking nuts (47) from screws (48) which secure one of brush holder assemblies (46) to

bearing and brush holder support (20). Discard nuts.

at. Remove two screws (48), flat washers (49), and insulating washers (50) from brush holder assembly (46) and

insulating plate (51). Using a soft--faced mallet, tap brush holder assembly or insulating plate from support.

au. Remove two insulating tubes (52) from this brush holder position.

av. Remove five remaining brush holder assemblies (46) as performed in steps at. and au.

aw. Check plate insulators, brush holder flat washers, tubes, and brush holders for distortion and cracks. Replace

any defective parts.

0008 00- 14