TM 9-2320-280-20-1
REFERENCE INFORMATION
ALTERNATOR
Change 1 2-224.7
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
NOTE
The regulator for this alternator has
overvoltage protection. Any output voltage
over 30.5 volts is an overvoltage.
1. Start test 10, Engine RPM.
2. Crank or start the engine. Displayed reading is
RPM. Engine RPM should be 1200-1500.
ENGINE RPM
STE/ICE-R TEST 10
Output voltage of 26-30.5 is acceptable for this
alternator.
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, go to E, page 2-218.
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, continue with G.
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.
