TEST - TM-5-4320-300-14

TM-5-4320-300-14 Pump Centrifugal Self-Priming Gasoline Engine Driven; 6-Inch 1500 GPM Capacity At 60 Foot Head Manual
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TM 5-4320-300-14 5-5. ALTERNATOR ASSEMBLY (CONT) Location/Item Action Remarks 8. Stator and Inspect for gouged or discolored windings. Dis- rotor coloration of winding insulation indicates an overheated stator or rotor that may result in shorted or grounded windings. 9. Rotor slip Inspect for cracks, wear grooves, or other rings damage. You can restore a smooth surface to the slip rings with fine crocus cloth (Federal Specification P-C-458). Wipe all residue from slip rings. 10. Rotor shaft Inspect shaft for stripped threads, cracks, wear, and body or other damage. Inspect body for cracked or marred pole fingers. Replace rotor if damaged. 11. All other parts Inspect for cracks, distortion, or damaged threads. Replace damaged parts. TEST 12. Rotor Set multimeter to resistance scale, touch probes together, and adjust OHMS ADJUST for zero resistance. Place a probe on each slip ring. A reading of zero resistance indicates a short circuit in rotor winding. If winding has a short circuit, replace rotor. A reading of infinite resist- ance indicates an open circuit in rotor winding. If winding has an open circuit, replace rotor. Place one test probe on one of the slip rings and the other probe on a rotor pole finger. The multimeter should indicate infinite resistance. If anything less than infinite re- sistance is indicated, replace rotor. 13. Bridge recti- Test the diodes with a multimeter. fier diodes 5-11

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