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| FR300V SERIES FUEL TRANSFER PUMPS
WARNING!
DO NOT open or attempt to repair the motor on your FR300V series pump. Opening the motor case can compromise the integrity of the Explosion Proof
construction and will void any existing warranty and certification (UL listing).
Please refer to the warranty policy located on page 2.
WARNING!
Be certain all power to the pump is turned off prior to performing any service or maintenance.
Symptom
Cause
Solution
Pump won't prime
1. Suction line problem
Check for leaks in suction line.
2. Bypass valve open
Remove and inspect valve, must move freely & be free of debris.
3. Vanes sticking
Check vanes and slots for nicks, burrs and wear. *
4. Excessive rotor or vane wear
Inspect rotor & vanes for excessive wear or damage, replace if necessary. *
5. Outlet blocked
Check pump outlet, hose, nozzle & filter for blockage.
6. Vapor Lock
Reduce vertical and horizontal distance from pump to liquid; Remove the automatic nozzle.
Low capacity
1. Excessive dirt
Remove and clean screen.
2. Suction line problem
Check suction line for leaks or restrictions; it may be too small, too long or not airtight.
3. Bypass valve sticking
Remove and inspect valve; must move freely and be free of debris.
4. Vanes sticking
Check vanes and slots of wear. *
5. Excessive rotor or vane wear
Inspect rotor & vanes for excessive wear or damage; replace if necessary. *
6. Hose or nozzle damage
Replace hose or nozzle.
7. Plugged filter
Replace filter.
8. Low fluid level
Fill tank.
Pump runs slowly
1. Incorrect voltage
Check incoming line voltage while pump is running.
2. Vanes sticking
Inspect vanes and slots for nicks, burrs and wear. *
3. Wiring problem
Check for loose connections.
4. Motor problem
Refer to warranty policy.
Motor stalls
1. Bypass valve sticking
Remove and inspect valve, must move freely & be free of debris.
2. Low voltage
Check incoming line voltage while pump is running.
3. Excessive rotor or vane wear
Check rotor & vanes for excessive wear or damage. *
4. Debris in pump cavity
Clean debris from pump cavity.
Motor overheats
(Thermal overload
tripped)
1. Pumping high viscosity fluids
These fluids can only be pumped for short periods of time (less than 30 minutes duty cycle).
2. Clogged screen
Remove and clean screen.
3. Restricted suction pipe
Remove and clean pipe.
4. Motor failure
Refer to warranty policy.
5. Pump rotor lock-up
Clean and check pump rotor and vanes. *
Troubleshooting
The following Troubleshooting guide is provided to offer basic diagnostic assistance in the event you encounter abnormal service from your Tuthill product.
If you have questions regarding installing, operating, or servicing your product, please feel free to contact our Customer Service Department at 1-800-634-2695 (M-F 8 AM–6 PM ET).
You can also reach us on the World Wide Web at “www.fillrite.com”.