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DO
Clean and rinse your pump after each use with
Fimco Tank Neutralizer
Winterize your pump or sprayer by rinsing, drain-
ing and running RV Antifreeze through it before
storing for the winter.
Use clean water for your spray mixture
DON’T
Use to pump bleach.
Use to pump petroleum products such as diesel
fuel, gasoline or kerosene
Leave your pump sit with spray mixture in it for
extended periods
Use dirty or unfiltered water for spraying
Replacement Pump: 5151087
Includes:
1/2” MNPT Port Kit Fitting
#5168832
1/2” Hose Barb Port Kit Fitting
#5168833
3/8” Hose Barb Port Kit Fitting
#5168836
Pump Model: 5281371
2.4 GPM, 60 PSI
Available Replacement Parts
Check the fuse
spray pattern
Check for defective pressure switch
12 Volt Power Source
Discharge hose may be too long
Check for clogged strainer/filter
Check for worn or dirty check valve
Slightly open bypass (if applicable) to overcome
Pressure switch may need to be adjusted
1/4 turn at a time clockwise until surging stops
Try another 12-Volt battery
Pump
will not run:
Check for loose wiring
Make sure the ON/OFF switch is on
Check to see if connected to good
Check for Low Voltage
Troubleshooting
Check for a clogged strainer
Check for proper voltage
Check for leaks in the discharge line
Check for restrictions in the discharge line
Check for debris in intake
Check for debris in nozzle orifice
Check for worn or dirty check valve
Low Pressure/
Low Flow:
Pump Does Not
Prime
(No Discharge
w/Motor
Running)
Check for clogged strainer/filter
Check for kinked inlet/outlet hoses
Check for empty product supply
Check for defective check valve
Check for debris in the check valve assembly
Check for cracks in the pump housing
Check for air leaks in supply line
Pump surges:
Low flow may cause pump to surge
Spray Wand is adjusted to small or fine of a
Check for defective pressure switch
Check for leaks in the discharge line
Check for debris in nozzle orifice
Fuse blows:
Excessive voltage
Improper adjustment of pressure switch
Damaged or defective wiring harness
Defective pressure switch
Pump continues
to run:
Check for worn or dirty check valve
Check for empty product supply
Check for Low Voltage
Check for leaks in the discharge line
Check for defective pressure switch
System has leaks
Air trapped in outlet line or pump head