Dump trailer?

Geo-TH,In

Well-known Member
Is there a way to make to make my trailer lower without battery power?
cvphoto38293.jpg
 
Only if you add a manual valve to run the dump. Power the manual valve with your pump set in raise.
 
Actually you would not have to replace the valve, just go in or to the up line and place a CT fitting then on the open line of the t fit a ball or quarter turn valve with line to the tank. When the unit is up , just open that valve manually and it should return to down position. Close the valve and dump again.
 
Actually there might be a way. Thouse super power magnets. Noedymium rare earth magnets are incredibly strong. I used to service some equipment that had one inch quare by 5/8 thick magnets in them. You take one of those and plunk it on top of the solenoid. Most times the plunger inside will pop open. Just something to try. Most likely you will need to do a little plumbing. Just remamber, that ball valve will need to he ratted for 4000psi. CAUTION.....these magnets are VERY powerfull and will give you a heck of a blood blister. Most time you can't pull them off, you need to slide them over the edge

cvphoto38349.jpg


cvphoto38350.jpg
 
jm
If you at pic, between the two solenoids is an allen wrench plug.
Do you think if there was another solenoid, that would relief pressure allowing gravity to lower dump?
 
Well you SAID WITHOUT USING BATTERY , adding another solenoid would require power, I was trying to do it as you wanted and to me would not take two hours to run the lift hose or line out to a point that a ball valve could be added to drop open to the tank and would be exactly what you said you wanted to do.
 
The one thing to be aware of is many double acting electric dump hoists have a very small reservoir and rely on pumping the oil back around the other side of the cylinder. When I worked for the trash company many of the F450 trucks we had with a dump bed were setup that way, occasionally the motor or solenoid would fail after raising the body and the driver would let it down without the motor running and it would overkill the reservoir and make a mess. A couple trucks which only had single acting hoists used much larger reservoirs
 
You plan would not add oil to the top of the cylinder tho and would require a larger reservoir.
 
Instead of using a manual valve, Could I apply power to just one solenoid and not the pump?
 
Double or single acting cylinder? Your one photo doesn't tell the whole story. You should show the whole hydraulic system so people have all the information to look at, the answer will be different for different set ups.
 

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