TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
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TM 9-2320-280-20-1 REFERENCE INFORMATION ALTERNATOR Change 2 2-218.1 1. Start Test 10, Engine RPM. 2. Crank or start the engine. Displayed reading is RPM. Engine RPM should be 1200 - 1500. NOTE For 60 amp Prestolite alternator, go to B, page 2-204. For 100 amp Prestolite alternator, go to C, page 2-208. For 200 amp Prestolite alternator, go to D, page 2-212. For 200 amp single voltage Niehoff alternator, continue with E. For 100 amp single voltage Niehoff alternator, go to F, page 2-222. For 100 amp dual voltage Niehoff alternator, go to F.1, page 2-224.2. For 200 amp dual voltage Niehoff alternator, go to G, page 2-224.6. For 400 amp dual voltage Niehoff alternator, go to H, page 2-224.10. NOTE The regulator for this model alternator has overvoltage protection. Any output voltage over 30.5 volts is an overvoltage. Output voltage of 26 - 30.5 is acceptable for this alternator. ENGINE RPM STE/ICE-R TEST 10 1. Connect RED clip to the indicated test point, BLACK clip to negative or ground. 2. Start Test 89, DC volts. 3. Displayed reading is in volts. 0-45 DC VOLTS STE/ICE-R TEST 89