0008
TM 1-1740-221-13&P&P
ENGINE TROUBLESHOOTING - (CONTINUED)
DECISION
YES Proceed to Step 3.
NO Replace faulty light, toggle switch SW7 (WP 0120), or repair faulty wiring (FO-1, Line 28).
BRANCH 3.
3.
Check for 12 volts at wire number 4 (red) of the glow plug circuit breaker CB1 (WP 0123).
CONDITION/INDICATION
Is 12 volts present?
DECISION
YES Proceed to Step 4.
BRANCH 4.
4.
With engine ignition switch in the run position and the glow plug toggle switch held on check for 12 volts input
power to all glow plugs at wire 5 (WP 0042) on the glow plug rail.
CONDITION/INDICATION
Is 12 volts present?
DECISION
YES Replace defective glow plugs (WP 0042).
NO Proceed to Step 5
MALFUNCTION - BRANCH 5.
MALFUNCTION - 12 volts are not present.
ACTION
END OF TEST
TROUBLESHOOTING PROCEDURE
ENGINE STARTS BUT IMMEDIATELY SHUTS DOWN WITH ENGINE SWITCH IN THE RUN POSITION
BRANCH 1.
1.
Test fuel solenoid (WP 0066).
CONDITION/INDICATION
Is 12 volts present?
DECISION
YES Proceed to Step 3.
NO Proceed to Step 2.
00086