TM 9-2320-280-20-1REFERENCE INFORMATIONALTERNATORChange 1 2-2191. 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 VOLTSSTE/ICE-R TEST 89NOTEFor 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.NOTEThe regulator for this model alternator hasovervoltage protection. Any output voltage over30.5 volts is an overvoltage.Output voltage of 26-30.5 is acceptable for thisalternator.1. Start test 10, Engine RPM.2. Crank or start the engine. Displayed reading isRPM. Engine RPM should be 1200-1500.ENGINE RPMSTE/ICE-R TEST 10FUSIBLE LINK REPLACEMENT1. Disconnect battery ground cable.2. Remove boot from alternator output terminal.3. Remove nut, lockwasher, washers, and fusible link fromterminal.4. Inspect fusible link.5. Replace fusible link if damaged or appears burned.6. Connect battery ground cable.
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