Page 3
DO
Clean and rinse your pump after each use with Fimco Tank
Neutralizer
Winterize your pump or sprayer by rinsing, draining and
running RV Antifreeze through it before storing for the winter.
Use clean water for your spray mixture
Store inside a building when not in use.
DON’T
Use to pump bleach.
Use tp pump petroleum products, such as diesel fuel, gaso-
line or kerosene
Leave your pump sit with spray mixture in it for extended
periods
Use dirty or unfiltered water for spraying
Troubleshooting the Pump:
Motor does not run:
Check for loose wiring connection(s).
Make sure the 'ON/OFF' switch in the lead wire assem-
bly is in the 'ON' position. “I" is the 'ON' position and 'O'
is the 'OFF' position.
Check for defective switch assembly. Make sure you are
connected to a good 12 volt power source. Make sure
any on/off switches are in the 'on' position. Disconnect
the wires off of switch assembly and short them out. If
your pump runs when you do this, your switch assembly
will need to be replaced.
Check the fuse, if applicable.
Check for low voltage at the power supply.
Pump does not prime:
Check for air leaks in supply line.
Check for debris in the valve assembly.
Check for defective valve assembly.
Check for clogged strainer/filter.
Check for cracks in the pump housing.
Check for empty product supply.
Pulsating flow (surging):
Check for defective switch assembly.
Check for leaks in the discharge line.
Check for restriction in the discharge line.
Check for debris in nozzle orifice.
Discharge hose may be too long.
Check for clogged strainer.
Motor continues to run after discharge is shut off:
Check for empty product supply.
Check for open bypass valve. (if equipped)
Check for low voltage.
Check for leak in discharge line.
Check for defective or dirty valve assembly.
Check for defective switch assembly.
Pump Model: 5277980
Available
Replacement Parts
Replacement Pump: 5275086
