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TROUBLESHOOTING ( CONTINUED )
Symptom
Motor runs but doesn't
pump (continued)
Low flowrate
Possible Cause(s)
7. System air leak
8. System air lock
9. Poor connections or low
voltage
10. Fuel level low
1. Strainer partially
clogged
2. Poor connections
or low voltage
3. Suction pipe clogged
or damaged
4. Using off-the-shelf
automatic nozzle
5. System air leak
6. Bypass poppet
spring weak
7. Fuel tank empty
EN
Corrective Action
7. Tighten all pump fittings and
connections. Inspect suction
pipe for leaks or damage
8. Occurs if external filter, meter
or an off-the-shelf automatic
nozzle is used.
To correct, remove the
pipe plug in the top outlet
port and fill the gear cavity
with fuel. Use of a factory-
supplied automatic nozzle
is recommended.
9. Make sure electrical
connections are secure.
10. Fill tank.
1. Remove the strainer
coverplate. Remove and
clean the strainer. Install
again.
2. Make sure electrical
connections are secure.
Also check power source.
3. Remove pump from tank.
Inspect suction pipe. Clean
or replace, as necessary.
4. Factory-supplied automatic
nozzle is recommended.
5. Tighten all pump fittings and
connections. Inspect suction
pipe for leaks or damage.
Replace as necessary.
6. Remove the bypass poppet
and inspect spring (see
Maintenance/Repair section.
Replace if necessary.
7. Fill tank.
5
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