ARMY TM 9-6115-644-24
AIR FORCE TO 35C-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
TABLE 3-1. Direct Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
11. GENETATOR SET FAILS TO GENERATE POWER.
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Step 6.
Step 7.
Test for defective governor control unit, paragraph 4-3-2.
a.
If governor control unit is not defective, do step 2.
b.
If defective, replace governor control unit, paragraph 4-3-4.
Test for defective AC voltage regulator.
a.
If voltage regulator is not defective, do step 3.
b.
If defective, replace AC voltage regulator, paragraph 4-1.
Test for defective generator exciter stator, paragraph 4-21-1.
a.
If exciter stator is not defective, do step 4.
b.
If defective, replace exciter stator, paragraph 4-21.
Test for defective generator stator, paragraph 4-24-1.
a.
If generator stator is not defective, do step 5.
b.
If defective, replace generator stator and housing assembly, paragraph 4-24.
Test for defective diode(s) in generator rotating rectifier, paragraph 4-18-1.
a.
If diodes are not defective, do step 6.
b.
If defective, replace diode(s), paragraph 4-18.
Test for defective generator rotor, paragraph 4-23-1.
a.
If generator rotor is not defective, do step 7.
b.
If defective, replace generator rotor assembly, paragraph 4-23.
Test for defective generator exciter rotor, paragraph 4-22.
If defective, replace generator rotor assembly, paragraph 4-23.
12. GENERATOR SET FAILS TO GENERATE SUFFICIENT VOLTAGE.
Step 1.
Check for low engine speed, refer to TM 9-2815-255-24.
a.
If engine is operating correctly, do step 2.
b.
If engine is not operating correctly, repair in accordance with TM 9-2815-255-24
Step 2.
Test for defective power potential transformer, paragraph 4-13.
a.
If power potential transformer is not defective, do step 3.
b.
If defective, replace power potential transformer, paragraph 4-13-1.
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