ARMY TM 9-6115-644-4
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
TABLE 3-1. Direct Support Troubleshooting - Continued
TEST OR INSPECTION
15. GENE RATOR NOISY WHEN RUNNING.
Check for defective generator main bearing, paragraph 4-19.
If generator main bearing is not defective, do step 2.
If defective, replace main bearing, paragraph 4-19.
Check for loose engine/generator coupling, paragraph 3-7-2, step j.
If engine/generator coupling is not loose, do step 3.
If loose, tighten engine/generator coupling bolts, paragraph 3-7-2.
Test for defective generator.
If defective, replace generator, paragraph 4-17.
Section Ill. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS.
The engine and generator are bolted together at the engine flywheel and flywheel housing adapter. The engine and
generator may be removed as an assembly or separately. The engine and generator assembly is mounted on the skid base
at four points. There are also brackets installed on both sides of the engine to support rear of engine when removing
3-6 ENGINE AND GENERATOR ASSEMBLY.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Remove output box assembly and generator set housing, paragraphs 4-8-1, 2-17-1 and 2-18-1.
Remove radiator, paragraph 2-82-1.
Drain engine oil and disconnect oil drain line at engine fitting, paragraph 2-113-2.
Disconnect fuel line at engine fuel pump from fuel pickup, paragraph 2-86-1.
Disconnect engine excess fuel return line at tank fitting, paragraph 2-86-1.
Disconnect coolant overflow hose from overflow bottle, paragraph 2-81-1.