Disassembly Brush Holder Assembly.

TM 9- 2920- 232- 34&P / TO 38X14- 2- 32

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DISASSEMBLY OF THE STARTER ASSEMBLY - CONTINUED

0008 00

d. Commutator diameter on armature must be within 2.3080 to 2.3180 inches. Inspect armature shaft and

commutator for eccentricity with a lathe or "V" blocks and a dial indicator. If the eccentricity exceeds 0.0050

TIR, the commutator must be resurfaced provided it will not be cut below 2.1930 inch diameter limits.

e. Inspect armature shaft splines for wear. Replace the armature if the splines are defective.

Inspect the commutator contact surface. A satisfactory condition is indicated by an even, highly burnished,

dark--copper color. If the contact surface is rough, pitted, scored, burned, or coated with hard carbon or oil,

the commutator must be resurfaced. If mica is not 0.025 to 0.032 inch below surface of commutator, it must

be undercut to the correct depth.

4. Disassembly Brush Holder Assembly.

WARNING

Compressed air used for cleaning purposes will not exceed 30 psi. Use only with effective

chip guarding and personal protective equipment (goggles/shield, gloves, etc.).

NOTE

When disassembling a 12--brush starter and conversion to 6--brush will be made at assembly,

do not disassemble brush holder assembly.

a. Remove buildup dust and dirt using compressed air prior to test.

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