I acquired a sprayer from an estate sale that looks like it was literally never used. I would really like to get working. My plan is to put it in the FEL and power it from the tractor battery. When I connect the clips to the battery and flip the switch, the pump runs for only 2-3 seconds (at most) and then cuts off. If I try the power switch immediately after that, nothing at all happens... if I wait a day or two and try the switch, the pump will again run for 2-3 seconds.
The sprayer is a FIMCO
The pump is a Shurflo model 8000-541-236.
I've searched the interwebs (including this forum) and haven't found a mention of a similar type of problem. Any advice on how to get this thing running?
Having a photo of the tank and model number helps.
What yu most likely could have:
1. A sprayer wand nozzle and discharge hose system with a clogged nozzle, kinked hose, maybe a piece of plastic in the wand from the factory, or some other obstruction that is causing the unit to shut off. Remove the spray wand from the hose, turn on the pump and see what happens. Blow out the hose and wand with compressed air. Check for a clogged or kinked suction line. There could be a chunk of plastic caught up there from where the tank was molded.
2. If everything is clear of obstructions and kinks, the likely cause is a defective or improperly adjusted pressure switch. Tighten for pressure and loosen if the pump will not shut off. You can get replacement pressure switches at a rural farm supply or tractor supply store were they sell the Fimco sprayers. Caution - lots of tiny parts and springs, so take apart on a clean concrete floor instead of out on the lawn (like I did).
Here is the link to the pump owners manual from Shurflo:
http://legacy.shurflo.com/pdf/industry/agri/911/911-8000-541-236.pdf
You can pull up the replacement parts list from this web site link:
Lawn and Garden Pump
Here is the link to the factory manual for what I think is your model sprayer unit;
http://fimcoindustries.com/images/manuals/old/LG-15-EC(FM817).pdf
If you want, check out the download center at fimcoindustries.com
Let us know what you find.
SC
The pump is a "demand" type diaphram pump that, once switched on, is designed (if operating and adjusted properly) to switch "ON" wen the nozzle is opened and "OFF" as soon as you close the nozzle.
It does this via a pressure switch with a screw and a little spring in it. Although the pumps are "supposed" to be factory set, I have always had to tweak mine. When I got mine, the pump would rapidly cycle on and off, so with the nozzle open, I had to tighten the screw until the unit would run without cycling.