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 TM 9-2330-330-14&P
ENGINE TROUBLESHOOTING--Continued
0023 00
Table 1. Troubleshooting Procedures--Continued
TEST OR INSPECTION
CORRECTIVE ACTION
MALFUNCTION
7.
ENGINE SPEED IS
1.
Check for proper operation If cable is loose, tighten throttle
ERRATIC OR WILL NOT
of throttle cable.
cable (refer to WP 0114 00).
MAINTAIN STEADY RPM
Verify problem is solved. If
throttle cable is not loose, go to
step 2.
2.
Check fuel lines for leaks.
If fuel lines are leaking/damaged,
tighten all connections and
repair/replace any damaged fuel
lines (refer to WP 0109 00).
Verify problem is solved. If fuel
lines are not leaking, go to step
3. If fuel lines still leak, notify
Direct Support maintenance.
3.
Check for restricted air
If air passages are restricted,
passages or red band in
clear restricted passages and/or
air restriction indicator.
replace air element (refer to WP
Verify problem is solved. If air
passages are okay, and engine
still will not maintain steady rpm,
notify Direct Support
maintenance that further
troubleshooting is required.
8.
ENGINE SPEED IS TOO
Check for proper operation of
HIGH OR TOO LOW
throttle cable.
If cable is loose or damaged,
repair/replace cable (refer to WP
solved. If cable is not loose or
damaged, notify Direct Support
maintenance that further
troubleshooting is required.
9.
ENGINE EXHAUST IS
NOTE
BLACK OR FUEL
Brown or black color in
CONSUMPTION IS
exhaust indicates incomplete
EXCESSIVE
combustion. Exhaust gases
are never invisible but darker
exhaust may indicate trouble
especially if there has been no
change in engine condition.
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