INSPECT FOUR SHOE POLES - TM-9-2835-255-340723

TM 9-2835-255-34

STARTER MOTOR REPAIR (Sheet 4 of 13)

1. INSPECT FOUR SHOE POLES (1) AND

FRAME (2) FOR CRACKS OR BREAKS.

INSPECT MOTOR FIELD WINDING (3)

FOR CRACKS, BREAKS, BURNED

INSULATION, BROKEN WIRES, OR

STRIPPED THREADS ON STUD (4).

REPLACE AS REQUIRED.

NOTE

Do steps 2 and 3 for each bar riser (5). If armature

(6) is damaged, assemble starter motor (page 9-16)

and replace as required.

2. PUT ARMATURE (6) IN GROWLER (7).

PUT BLACK NEGATIVE PROBE (8) ON

ARMATURE CORE (9). PUT RED PROBE

(10) ON BAR RISER (5). IF LIGHT ON

GROWLER (7) LIGHTS, ASSEMBLE

STARTER MOTOR (PAGE 9-16) AND

REPLACE.

3. PUT BLACK NEGATIVE PROBE (8) ON

SHAFT (11) AND RED PROBE (10) ON

BAR RISER (5). IF LIGHT ON GROWLER

(7) LIGHTS, ASSEMBLE STARTER MOTOR

4. TEST ARMATURE (6) FOR SHORT

CIRCUITS.

NOTE

Short circuit in armature (6) will pull hacksaw

blade against the core (9) and cause blade to vibrate.

a. With growler (7) turned on, hold blade

about l/32-inch (0.794 mm) away from

armature (6).

b. Turn armature (6) slowly. If blade is

pulled against core (9), assemble starter

motor (page 9-16) and replace.

INSPECT ARMATURE SHAFT

SPLINES (12) FOR DAMAGE. IF

DAMAGED, ASSEMBLE STARTER MOTOR

INSPECT CONTACT SURFACE (13) FOR

ROUGH SURFACE, PITS, BURNS, OR

HARD CARBON OR OIL COAT. IF

DAMAGED DO STEPS 7, 8, AND 9.

Go on to Sheet 5

9-9