NO FUEL FLOW.

TM 3-1040-279-12&P

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 3.

Check wiring at equipment container terminal board TB12.

Remove eight screws and washers securing left equipment container panel and remove

panel.

Check continuity between pin H of 5J1 and terminal 8 of terminal board TB12 and pin N of

5J1 and terminal 18 of TB12.

If continuity was obtained, reconnect cable assembly to connector 5J1 and go to next

step.

If continuity was not obtained, repair wiring (P. 4-34).

Step 4.

Check start air hose. Refer to P. 4-88 for location.

Check that air hose is not cut, collapsed, or pinched.

If air hose is damaged, replace damaged hose.

If air hose is not damaged, replace solenoid assembly (P. 4-70).

12. NO FUEL FLOW.

Step 1.

Check fuel can lid assembly check valve/orifice cap.

Remove fuel can lid assembly from fuel can and check that the check valve is not damaged,

clogged, or that orifice cap hole in new version is not blocked.

Clean check valve, ensuring that spring plunger/ball moves freely and does not bind or

carefully clean out orifice hole in cap.

Reconnect fuel can lid assembly to the fuel can. Ensure that the fuel supply, return hoses are

not damaged, leaking, torn, or collapsed. Replace/repair hoses as required (TM 3-1040-284-

20&P or TM 9-2350-261-24P).

Step 2.

Check fuel filter.

Remove fuel filter from cover assembly (P. 4-36).

Wipe filter clean and blow air through filter with low pressure (10 psi) compressed air.

If air flow is good, reinstall filter and go to next step.

If air flow is restricted, replace fuel filter.

Step 3.

Check control panel circuit.

Disconnect cable assembly from 1J3 or 1J4 (No. 1 or No. 2 generator) on control panel.

Set POWER switch to ON.

Hold ENGINE switch to START.

Check for 28v between sockets G (+) and N (-) of connector 1J3 or 1J4.

If 28v is obtained, set switches to OFF, reconnect cable assembly and go to next step.

If 28v is not obtained, set switches to OFF, and repair control panel wiring (P. 4-127) or

replace ENGINE switch (P. 4-110).

Change 4

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