TM 9-2320-280-20-1
REFERENCE INFORMATION
ALTERNATOR
Change 1 2-224.11
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.
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.
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
