Troubleshooting - Fimco 3PT-200-NR-1225FX4 Owner's Manual

Symptom Probable Cause(s)
Leak in suction line
Obstruction in suction line
Suction strainer clogged
Suction hose sucked to
Pump Does Not Prime
bottom or side of tank
Air lock in pump
Pump worn
Rollers stuck in pump
Pump seals worn, leaking air
Clogged suction strainer
Kinked or blocked suction hose
Air leak in inlet side plumbing
Relief valve setting too low
Loss of Pressure
or weakened spring
Faulty Gauge
Pump seals leak air
Nozzle orifices worn
Pump worn
Suction line has air leak
Debris in valve or gauge
Erratic Pressure
Kinked or blocked suction hose
Gauge Fluctuates
Air leak in suction hose
Excessively
Suction hose collapsed
Pump is sucking air or air has not
been evacuated from strainer
Corrosion (rust), scale or residue
Pump will not turn
Solid object lodged in pump.
Pump Leaks Worn out seal
Loose coupler or damaged shaft
Excessive PTO or engine speed
Excessive Vibration or
Rotor or internal problem
Noisy Pump
Partially clogged strainer
Air leak in suction hose
Debris in suction line
Pump Runs, but Low
Hose kinked
Pressure
Worn rollers
Strainer clogged
Nozzle size may be too small or
Pump Pressure Good,
clogged
but Low Output
Inlet line too small or blocked
Through Nozzles
By-pass open too much

Troubleshooting

Corrective Action
Check hose and fittings for leaks and correct
Inspect hose for debris or loose inner liner in hose
Clean strainer
Cut a notch or "V" in end of suction hose
Run pump with discharge hose removed to clear air lock
Replace or repair pump
Disassemble pump and inspect rollers
Replace seals
Check strainer and clean it regularly
Inspect suction hose and repair as necessary
Check hose and connections for leaks
Use pipe joint sealant and retighten connections
Check relief valve and correct setting
Replace gauge
Replace seals
Replace nozzles
Repair pump
Tighten all fittings and hoses between pump and tank
Remove and clean parts
Remove suction line and clean-check tank and strainer
Tighten all fittings - replace hose if necessary
Replace hose
Make sure suction hose is tightly secured. Run pump with
discharge hose removed to remove air lock from pump
Loosen endplate bolts. Squirt oil into ports to help free rotor.
Retighten bolts.
Disassemble pump and remove objects
Replace seal
Inspect shaft and tighten coupler
Reduce PTO or engine speed
Replace rotor or pump
Clean strainer
Inspect suction hose - replace if necessary
Clear debris
Straighten or replace hose if necessary
Replace rollers
Clean strainer
Clean nozzles - replace nozzles if necessary
Clear blockage and if necessary replace hose
Close slightly
Page 17