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Fimco Sprayer FAQs

Fimco Sprayer
FAQs – Frequently Asked Questions
How do I power my 12-volt sprayer?
I just received my sprayer & cannot find the manual or the wiring harness. What do I do?
I hooked my sprayer up to the battery on my lawn tractor, but it doesn’t run. How come?
Both switches are in the on position, but it still does not run. Now what?
How do I regulate the pressure on my 12-volt sprayer?
Can I put a longer hose on my sprayer?
Can I run diesel fuel through my 12-volt pump?
Can I spray bleach through my spray to clean my siding?
Why does the motor on my 12V pump run but it doesn’t pump anything?
Can the 15-and 20-gallon spot sprayers be mounted to a surface?
There is no gasket on the lid of my Fimco tank. Should there be a gasket?

Q. How do I power my 12-volt sprayer?
A. Each 12-volt sprayer comes with a wiring harness and alligator clips which you can hook up to the 12-volt battery on your lawn tractor or a separate 12-volt car or marine battery.
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Q. I just received my sprayer and cannot find the manual or the wiring harness. What do I do?
A. Check inside the tank. The manual and wiring harness should be there. If your sprayer has a pressure gauge, it will also be inside the tank.
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Q. I hooked my sprayer up to the battery on my lawn tractor, but it doesn’t run. How come?
A. Most FIMCO 12 volt sprayers have ON-OFF switches on both the lead wire assembly and the pump. Make sure that both switches are in the ON position.
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Q. Both switches are in the on position, but it still does not run. Now what?
A. Check to see if all connections are tight and power is getting to the pump. If connections are good, then call GEMPLER’S Technical Service at 1-800-874-4755 or FIMCO Customer Service at 1-800-831-0027. Please have your sprayer model number ready when calling.
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Q. How do I regulate the pressure on my 12-volt sprayer?
A. If your sprayer is set up to adjust the pressure, there is a Y-shaped valve that splits the solution flow between the boom and the return line to the tank. Opening and closing the valve on the return line will increase or decrease the pressure.
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Q. Can I put a longer hose on my sprayer?
A. In most cases, yes. With smaller 12 volt pumps you can go up to 30 feet. With larger 12 volt pumps you can go up to 50 feet. With gasoline powered pumps you can go up to 300 feet of 1/2 inch hose.
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Q. Can I run diesel fuel through my 12-volt pump?
A. No. The internal parts of the pump will be damaged by the diesel fuel and your warranty will be voided.
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Q. Can I spray bleach through my spray to clean my siding?
A. No. Bleach is extremely hard on the internal parts of the pump and the nylon fittings.
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Q. Why does the motor on my 12V pump run but it doesn’t pump anything?
A. There are a couple possible issues. One is your pump may have an air lock. Turn your pump off and make sure the pump is full of liquid, then turn your pump back on and see if it begins pumping. If your pump still runs, but does not pump, your check valve has deteriorated and needs to be replaced.
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Q. Can the 15-and 20- gallon spot sprayers be mounted to a surface?
A. Yes. The 15-and 20-gallon tanks have threaded fittings on the bottom which can be mounted to a flat surface.
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Q. There is no gasket on the lid of my Fimco tank. Should there be a gasket?
A. No. The lids of Fimco tanks do not have gaskets. There is a valve to prevent liquid from splashing through the lanyard hole, but there is no lid gasket.
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