39718171817TM 9-4940-568-345-143e.Cleaning/Inspection.Do not clean or immerse startermotor parts in grease dissolvingsolvents. Solvents will dissolvegrease packed in drive assemblyand may damage armature orfield coil insulation.(1)Clean all motor parts with a soft cloth priorto testing.(2)Inspect all parts for cracks, distortion orother structural damage. Replace parts orassemblies which are cracked, bent orotherwise damaged.(3)Inspect threaded parts for stripped, crossedor otherwise damaged threads. Replaceparts with thread damage that cannot becleaned up. Replace any hardware itemsthat have damaged threads.(4)Inspect clutch drive assembly (39).(5)Replace clutch drive assembly if pinion gearturns roughly or turns in both directions,pinion gear teeth are broken or showingevidence of step wear, and deep scoring orother damage to shift lever collar hasoccurred.(6)Inspect brush holder assembly (7). Replacebrush holder if loose riveted joints orcracked or broken insulation is found.(7)Inspect brushes (17) and (18) for excessivewear. The minimum allowable brush lengthis 0.472 in. (12 mm). Replace excessivelyworn brushes in sets.
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