Testing

ARMY TM 9-6115-464-34 AIR FORCE TO 35C2-3-445-2 NAVY NAVFAC P-8-624-34 (21) Remove minor rough spots, scores, and scratches from bushings using fine crows cloth or a fine stone dipped in cleaning solvent. Wash the bushings thoroughly in cleaning solvent to remove all grit and metal particles. d. Assembly. (1) Assemble starter assembly in reverse order of removal procedures using new gaskets. (2) If brushes were replaced, run in new brushes as follows: (a) (b) (c) Cover armature commutator with a piece of No. 00 grit sandpaper. Temporarily install brushes and commutator end frame and run in brushes. Disassemble, remove sandpaper, and clean armature commutator and brushholder assembly with filtered compressed air. e. Testing. (1) Test overrun clutch as follows: (a) Rotate drive gear back and forth. Gear should turn freely in direction of motor rotation and rotate armature shaft in other direction. (b) If gear turns armature shaft in both directions, the overrun clutch is binding and must be replaced. (c) If gear does not rotate armature shaft in either direction, the overrun clutch is slipping and must be replaced. (2) Test starter solenoid assembly as follows: (a) (b) (c) (d) (e) (f) (9) Remove terminal lead (3, figure 3-1). Apply 24 Vdc between the negative terminal and the small terminal of the solenoid assembly. Solenoid actuation will be indicated by an audible “click” and rearward movement of the drive gear. Remove 24 Vdc from solenoid assembly terminals. The drive gear should move forward with an audible click. Replace solenoid assembly if it fails to function properly. Install terminal lead. (3) Conduct starter assembly motoring test as follows: (a) (b) (c) (d) (e) (f) (9) (h) 3-6 Remove terminal lead (3, figure 3-1). Install starter assembly into motoring test circuit shown in figure 3-2. Adjust rheostat until voltmeter indicates 22,5 volts. Check indications of ammeter and tachometer. Ammeter should indicate 56 amperes maximum with starter turning at 9300 rpm. If current and speed are low, disassemble starter and check for high resistance at internal connections. If current is high and rpm low, disassemble and inspect armature shaft and bushings for wear or misalignment. Do not install terminal lead (3, figure 3-1) until stalled torque testis completed.