ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
TABLE 3-1. DIRECT SUPPORT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 6.
Test for defective generator rotor, paragraph 4.22.1 (MEP-804A) or paragraph 4.30.2
(MEP-814A).
a.
If generator rotor is not defective, do step 7.
b.
If defective, replace generator rotor assembly, paragraph 4.22 (MEP-804A) or paragraph
4.30 (MEP-814A).
Step 7.
Test for defective generator exciter rotor, paragraph 4.21.1 (MEP-804A) or paragraph 4.29.2
(MEP-814A).
If defective, replace generator exciter rotor, paragraph 4.21 (MEP-804A) or paragraph 4.29
(MEP-814A).
12.
GENERATOR SET FAILS TO GENERATE SUFFICIENT VOLTAGE.
Step 1.
Check for low engine speed, refer to TM 9-2815-254-24.
a.
If engine is operating correctly, do step 2.
b.
If engine is not operating correctly, repair in accordance with TM 9-2815-254-24.
Step 2.
Check for defective fuel injection nozzles, TM 9-2815-254-24.
a.
If fuel injection nozzles are not defective, do step 3.
b.
If defective, reapir or replace fuel injection nozzles.
Step 3.
Test for defective generator stator, paragraph 4.23.1 (MEP-804A) or paragraph 4.31.2
(MEP-814A).
If defective, replace generator stator and housing assembly, paragraph 4.23 (MEP-804A) or
paragraph 4.31 (MEP-81 4A).
13.
GENERATOR SET OUTPUT FLUCTUATES.
Step 1.
Step 2.
Step 3.
Step 4.
Check for irregular engine speed, refer to TM 9-2815-254-24.
a.
If engine is operating correctly, do step 2.
b.
If engine is not operating correctly, repair in accordance with TM 9-2815-254-24.
Check for loose terminations, refer to FO-1.
a.
If terminations are tight, do step 3.
b.
If loose, tighten terminals.
Check voltage regulator for incorrect output, paragraph 4.1.1.
a.
If voltage regulator is operating properly, do step 4.
b.
If voltage regulator is inoperative, replace voltage regulator, paragraph 4.1.5.
Test for intermediate short in generator exciter field, paragraph 4.20.1 (MEP-804A) or paragraph
4.28.2 (MEP-814A).
If shorted, replace exciter stator, paragraph 4.20 (MEP-804A) or paragraph 4.28 (MEP-814A).
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