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Troubleshooting the Pump

 
Motor does not run: 

 

Check for loose wiring connection(s). 

 

Make sure the 'ON/OFF' switch in the lead wire assembly is in 
the 'ON' position.  “I" is the 'ON' position and 'O' is the 'OFF' 
position. 

 

Check for defective pressure switch. Make sure you are con-
nected to a good    12 volt power source. Make sure any on/off 
switches are in the 'on' position. 

 

Remove the cap to the pressure switch. Pull both red wires off 
of their terminals, and touch the two ends together. If your pump 
runs when you do this,  your pressure switch will need to be 
replaced. 

 

Check the fuse. 

 

Check for low voltage at the power supply. 

 
Pump does not prime: 

 

Check for air leaks in supply line. 

 

Check for debris in the check valve assembly. 

 

Check for defective check valve. 

 

Check for clogged strainer/filter. 

 

Check for cracks in the pump housing. 

 

Check for empty product supply. 

 

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 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 

Pulsating flow (surging): 

 

Check for defective pressure switch. 

 

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 check valve. 

 

Check for defective pressure switch. 

Pump Model:  5277982 

Available Replacement Parts 

Pump Specifications 

Current: 

7.4 Amps @ 40 PSI 

Check Valve: 

Viton 

Wetted Parts Housing:  Polypropylene 

Diaphragm: 

Santoprene 

Liquid Temperature: 

130° F max. 

 

 

GPM=Gallons Per Minute 
PSI=Pounds per Square Inch 
DC=Direct Current 

Summary of Contents for FSUTL40-12V

Page 1: ...gauge in place and to hook up the wiring to an existing 12 volt power source Connect the electrical hook up to the end of your pump and clip the clips to a fully charged battery The red wire must be connected to the positive and the black wire should be connected to the negative Read the operating instructions and then run the sprayer using only water for testing When everything tests all right ad...

Page 2: ...mp 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 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 Pulsating flow...

Page 3: ...ll aid in mixing the water and chemicals You should now be ready to spray Speed Chart Time Required in seconds to travel a distance of Speed in M P H Miles Per Hour 100 Ft 200 Ft 300 Ft 1 0 68 sec 136 sec 205 sec 2 0 34 68 102 3 0 23 45 68 4 0 17 34 51 5 0 14 27 41 6 0 11 23 34 7 0 9 7 19 29 8 0 8 5 17 26 9 0 7 6 15 23 10 0 6 8 14 20 Maintenance During After Spraying Periodically close the suction...

Page 4: ...Page 4 Exploded View Parts List FSUTL40 12V 5301420 ...

Page 5: ...ut the nylon valve to the Closed position lever is perpendicular to the flow of fluid then shut off your pump Unscrew the knurled nut from the shut off valve leaving the valve connect ed to the tank Swing swivel the intake assembly towards you Look in the nut you JUST unscrewed There is a screen washer there Remove the screen and clean as necessary Replace when done and reas semble the entire asse...

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