Bennett T75 Operation, Service, & Parts Manual Troubleshooting
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PROBLEM 3: I NACCURATE DELIVERY
Refer to the table below for a description of various causes of the problem and the solution.
Control valve stuck open.
Remove the 4-bolt control valve cover and free control valve.
Vent tube from air eliminator to atmosphere plugged.
PROBLEM 4: FUEL RUNS OUT OF VENT TUBE WHEN P U MP IS OPERATING.
Refer to the table below for a description of various causes of the problem and the solution.
Float valve stuck in a closed position.
Clean the float and valve area. Check for swelling and binding in the linkage.
Flooded suction chamber. Direction flow valve missing.
Storage tank level must be lower than pumping unit. Make sure 2 or more
pumps are not using the same suction line.
PROBLEM 5: THE COMPUTER JUMPS WHEN THE PUMP IS TURNED ON .
Refer to the table below for a description of various causes of the problem and the solution.
Control valve not seated properly
Remove valve cover and inspect for dirt or nicks in the O-Ring.
The Expansion Relief Dill Valve in control valve is stuck open.
Remove and inspect for foreign matter. Pull spring-loaded seat for better
view. Reinstall.
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