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Page Title:
Table 3-2. Troubleshooting Chart-continued |
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 Malfunction
Probable cause
Corrective action
e. Oil pressure safety switch trips.
e. Check oil level. Report to organi-
zational maintenance if low.
f. Engine overspeed governor trips.
Start engine and watch tacho-
meter to check for overspeed.
Report to organizational main-
tenance if engine speed
exceeds 2600 rpm.
4. Engine runs but unit fails to pump. a. Suction leak.
a. Correct leak in auction line.
b. Suction lift too high.
b. Reduce suction lift to less than 25
feet (para 2-2).
c. Pump not primed.
d. Discharge head too high.
d. Reduce discharge head.
e. Throttle lever not in full-speed
e. Operate throttle lever so that en-
position.
gine runs at full governed
speed.
5. Engine lacks power.
a. Throttle control not in full-speed
a. Operate throttle control to provide
position.
full speed operation.
b. Air cleaner restricted.
b. Check for air cleaner restriction.
c. Free weather cap.
cessive back pressure.
3-3
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