DISTRIBUTOR INSPECTION.

TM 10-3930-623-34

indicated on the scale and compensate for length of the

carbonized (burnt) paths caused by current leakage.

brake arm. Corrected torque value shall be 10.5 foot-

Discard defective cap assembly.

pounds.

2. Examine metal inserts in cap terminals for

burning or pitting. Discard cap assembly if severe

NOTE

burning or pitting is noticed.

The true torque value is obtained by

multiplying the scale reading by the

3. Examine rotor (17) for cracked or chipped spots

length of the brake arm in inches and

or burned tip.

dividing by 12.

brake arm x scale reading = torque in foot-pounds

4. Check rotor segment for excessive burning. If

only end of rotor segment is burned, operation of rotor is

not impaired. Discard rotor and cap assembly if burning

3. If low torque and high current are obtained in

is found on top portion of rotor segment or on plastic.

test, repeat paragraph 7-30, step 4.

5. Examine breaker plate (26) for damage.

4. If low torque and low current are obtained in

test, repeat paragraph 7-30, step 5.

6. Examine capacitor (20) for broken leads, frayed

insulators, or loose and corroded terminal clips. Be sure

5. If severe arcing is noticed during test, check

capacitor has secure ground connections.

tension of brush spring. Examine brushes for wear and

contact with commutator, and check soldered

7. Check condition of capacitor with a suitable

connections of armature windings at commutator.

tester. Replace capacitor if test indicates grounds or if

capacity of capacitor exceeds 0.20 microfarads, plus or

minus 10%.

7-32. DISTRIBUTOR INSPECTION.

8. Examine contact point set (18) for excessive

1. Examine cap and shield (10, figure 4-19) for

pitting. Discard set if buildup on stationary contact is

cracks and chipped spots.

Check inside of cap

greater than 0.020 inch.

assembly for

Figure 7-6. Starter Stall Current and Torque Test Setup

7-12