Dump Trailer 12v pump

   / Dump Trailer 12v pump #1  

kwbobwi

Bronze Member
Joined
Jun 9, 2010
Messages
55
Location
Central Wisconsin
Tractor
Farmall A
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20241113_124808.jpg

Trailer goes up fine but takes forever to come down.
Cleaned the tank and filter.
Dealer was no help, said filter was the problem, than said a safety valve on the cylinder which there is none.
Solenoid clicks when the down button
 
   / Dump Trailer 12v pump #2  
It's gravity down, least the ones I've operated are. Only thing that would make it slow going down is a restriction somewhere, valve not opening fully, hose collapsed or restricted, vent plugged on tank, incorrect fluid etc
 
   / Dump Trailer 12v pump #3  
Ditto on checking for a clogged hyd oil restrictor or faulty control valve.
 
   / Dump Trailer 12v pump #4  
take the cap off the tank and try it, that would let you know if it is the vent. but if it was the vent I would think you could see the tank swell with pressure.
 
   / Dump Trailer 12v pump #5  
How long does it actually take to drop?

Even when new, my Bri Mar 12K dump trailer would take more than 2 minutes to drop when empty.
Sometimes, even longer in cold temps. When loaded, it would come down in 10 seconds.

I replaced the 10W hyd. oil with automatic transmission fluid which helped considerably.
 

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