SECTlON V: TROUBLESHOOTlNG
TM 9-2350-256-20
D
With brakes properly adjusted, have assistant apply
and release brakes several times. Observe each time
that both right and left brake-apply-and-slack-
adjustment levers return to their respective stops. If
brakes do not fully release each time, check linkages
and repair or replace any binding, bent, or broken
parts.
E
Remove left- and center-front air inlet grilles (see
paragraph 9-57). Disconnect one end of throttle rod
(see paragraph 9-78). Have an assistant depress
accelerator pedal to its maximum. Depress
accelerator linkage on front of engine to its
maximum. If a free pm cannot be made, check
linkage and repair or replace any binding, bent, or
broken parts. Check throttle linkage adjustment (see
paragraph 9-78). If a free pm fit can be made, notify
Direct Support Maintenance.
F
Check purge pump fuel lines between purge pump
and main engine for leaks.
G
Turn MASTER switch to OFF position. Remove fuel
line connected to in port on purge pump. Place fuel
line in a container and turn MASTER switch to on
position. If no fuel flows from disconnected fuel
lines, troubleshoot electric fuel pump (see paragraph
2-19).
H
If fuel flows into container, turn MASTER switch to
OFF position and connect fuel line. Disconnect fuel
line from out side of purge pump. Place a container
under purge pump, turn MASTER switch to on
position and operate purge pump. If no fuel flows
from purge pump, turn MASTER switch to OFF
position. Replace purge pump (see paragraph 4-9).
Remove front air inlet grilles (see paragraph 9-57).
Unscrew fuel outlet hose at main engine fuel check
valve (see paragraph 4-13). Disconnect main engine
fuel hose at primary fuel filter (see paragraph 4-14).
Operate purge pump with MASTER and fuel pump
switches in ON position. If no back pressure or only
light back pressure can be felt during operation,
replace main engine fuel check valve (see paragraph
4-13).
J
Remove front air inlet grilles (see paragraph 9-57).
Check primer hose and fuel return hose for proper
connection at quick-disconnects (see paragraph 3-l).
K
Check purge pump fuel lines between purge pump
and main engine for kinks or restrictions. Replace or
repair kinks or restricted fuel lines (see paragraph 4-
10).
Change 1
2-40.13
