Fimco LG-2500-304 Owner'S Manual Download Page 6

Page 6 

 

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 connected 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. 

 

Pump Model:  5277981 

Available Replacement Parts 

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 

Pump Specifications 

Current: 

4.5 Amps @ 30 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 

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. 

Summary of Contents for LG-2500-304

Page 1: ...tance visit our website www fimcoindustries com or call TOLL FREE 1 800 831 0027 Our Technical Support Representatives will be happy to help you To obtain prompt efficient service always remember to give the following information Correct Part Description and or part number Model Serial of your sprayer Part descriptions and numbers can be obtained from the illustrated parts list section s of this m...

Page 2: ...our sprayer s carton LG 2500 304 Contents of Parts Bag 5278317 Tank Lid Lanyard 5058188 25 30 Gallon Trailer Bracket Kit 5277789 Tank Frame Pre Assembly 2 Nozzle Boom Assembly 5277774 2 Tires Wheels 5021102 Owner s Manual ...

Page 3: ...sponding hole on the other side of the frame You may need to maneuver squeeze the frame slightly while doing this to get the axle through both holes Center the axle about the frame as best as possible Slide the wheel spacers onto the axle Now slide the wheels over the axle and up against the wheel spacer Make sure the valve stems of the wheels are facing outward Retain the wheel on the axle with c...

Page 4: ... it Slide the lanyard through the hole in the tab at the top of the tank This is so the lid can hang or be retained onto the tank while you are filling or rinsing the tank out This should help prevent loss or damage of the lid Screw the lid onto the tank Hand tight should be sufficient Using Teflon tape or plumbers thread sealant screw the pres sure gauge into the manifold Hand tight should be suf...

Page 5: ... with plain water and use FIMCO Tank Neutralizer and Cleaner and repeat cleaning instructions above Flush the entire sprayer with the neutralizing cleaning agent then flush out one more time with plain water Follow the chemical manufacturer s disposal instructions of all wash or rinsing water For the boom if applicable remove the tips and screens from the nozzle assemblies Wash these items out tho...

Page 6: ... 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 o...

Page 7: ...Page 7 Exploded View Parts List LG 2500 304 5301440 Intake Detail Manifold Detail ...

Page 8: ...at this location so you can shut off the flow of solution to access your system s screen for cleaning Checking Cleaning the sprayer s filter screen Start your pump and before it shuts off reach down and Shut 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 connected to the ta...

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