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Page Title:
Table 2-2. Troubleshooting - CONT |
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 TM 55-1905-223-24-4
Table 2-2. Troubleshooting - CONT
Malfunction
Test or Inspection
Corrective Action
3. Engine difficult to start or will not start: Smoke from exhaust.
STEP 1.
Check for excessive engine/generator resistance to rotation.
Bar the engine to check for excessive resistance.
STEP 2.
Check to see if cranking speed is too slow.
a.
Check the battery.
b.
Inspect for loose or corroded wiring connections.
STEP 3.
Check to see if block heater is working.
Check for correct operation refer to PMCS, Item 20.
STEP 4.
Not enough intake air for the engine.
Inspect/replace air filter and check for obstructions in the air ducts
STEP 5.
Check for air in the fuel system.
Bleed the fuel system. Refer to PMCS, Item 12.
STEP 6.
Check to see if fuel pump timing is correct.
Visually verify pump marks are aligned (para. 2-33).
STEP 7.
Check for contaminated fuel.
a.
Drain and flush fuel supply tanks.
b.
Replenish with clean fuel.
STEP 8.
Check for incorrect valve adjustment.,
Adjust valve s. Refer to PMCS, Item 17.
4. Engine starts but will not keep running.
STEP 1.
Check for low level of fuel in supply tank.
Replenish the fuel.
STEP 2.
Check to see if idle speed is too low.
Adjust the low idle screw (para. 3-12).
STEP 3.
Check for restricted exhaust.
Correct exhaust piping.
STEP 4.
Check for a fuel restriction in the suction side of the system.
Remove restriction. If weather has changed, check block heaters for proper operation. Refer to PMCS, Item
20.
2-23
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