TM 9--2350--292--20--1
0039 00--2
PURGE PUMP FAILS TO OPERATE (PURGE PUMP CANNOT BE HEARD
OPERATING WHEN TURNED ON) -- CONTINUED
0039 00
Does fuel flow freely from check valve?
1. Reconnect fuel line to OUT port of purge pump.
2. Disconnect fuel outlet hose from main engine
fuel check valve.
3. Place container under check valve and turn
MASTER switch ON and FUEL PUMP switch to
PURGE (TM 9--2350--292--10).
4. Hold ENGINE PREHEAT switch in PURGE
position (TM 9--2350--292--10).
5. Turn MASTER switch and FUEL PUMP switch
OFF (TM 9--2350--292--10).
no
yes
D
Can purge pump be heard operating?
1. Turn MASTER switch ON and FUEL PUMP
switch to PURGE (TM 9--2350--292--10).
2. Place ENGINE PREHEAT switch in ON position
(TM 9--2350--292--10) and listen for purge pump
to operate.
3. Turn MASTER switch and FUEL PUMP switch
OFF (TM 9--2350--292--10).
E
no
yes
Go to step I.
CONTINUED FROM STEP C
Fault corrected.
Replace main engine
check valve (WP 0225 00).
Verify fault is corrected.
CONTINUED FROM STEP B
Replace purge pump
(WP 0225 00). Verify
fault is corrected.
no
yes
CONTINUED ON NEXT PAGE
