Converting my dump trailer to the remote on my tractor

demaree99 · Oct 9, 2011

I have a Mahindra 5010 with single remote at the rear of the tractor. I have a 7 x 14 dump trailer with 12,000# capacity, with the battery and it's own pump system that was on the trailer when I bought it. It works perfect for my constuction business and hauling my equipment. I notice that after 4 or 5 dumps the battery becomes weak and won't lift as fast or sometimes not at all till the truck re-charges the battery, or I plug it in over night. My question is since I have alot more dirt to move around the farm and could easily haul 15 to 20 loads on a Sat. how can I bypass the factory installed trailer lift system and put in another hose and use the remote on my tractor to dump the trailer using the tractor's hydro's system and then just remove the hose and go back to the factory dump system ????? I do have a 7-pin hookup on the tractor for trailer lights and brakes and it does have a 12 volt " hot wire " to charge the battery on the trailer like my truck does, but it will never keep up with the amount of dumping I need to do.

jobguy · Oct 9, 2011

I am in the process of doing the same thing you are. My dump trailer hydraulics no longer work. I posted on this site (cannot find the old posts or great replies). So will summarize:
I can use my rear remote to dump. Since I have only power up (one hose on the dump) when I put the remote lever in the opposite position the dump will slowly fall as fluid flows back into the tractor through the neutral setting of the valve. I only use my dump a few time a year.
Some suggested a return line to the tractor reservoir. Another suggested converting the dump cylinder into a two way cylinder with two hoses.
The responses I received were terrific and technical. I will keep looking for those posts and if I can find them will get them to you.

jobguy · Oct 9, 2011

Found the posts at this location:
http://www.tractorbynet.com/forums/hydraulics/154521-enough-fluid-tractor-dump-trailer.html
Let me know what you end up doing please.
Ken

leonz · Oct 9, 2011

demaree99 said:
I have a Mahindra 5010 with single remote at the rear of the tractor. I have a 7 x 14 dump trailer with 12,000# capacity, with the battery and it's own pump system that was on the trailer when I bought it. It works perfect for my constuction business and hauling my equipment. I notice that after 4 or 5 dumps the battery becomes weak and won't lift as fast or sometimes not at all till the truck re-charges the battery, or I plug it in over night. My question is since I have alot more dirt to move around the farm and could easily haul 15 to 20 loads on a Sat. how can I bypass the factory installed trailer lift system and put in another hose and use the remote on my tractor to dump the trailer using the tractor's hydro's system and then just remove the hose and go back to the factory dump system ????? I do have a 7-pin hookup on the tractor for trailer lights and brakes and it does have a 12 volt " hot wire " to charge the battery on the trailer like my truck does, but it will never keep up with the amount of dumping I need to do.

You may simply need a new deep cycle battery as it may have a bad cell or it is near the end of its usefull life.

I think you do need a new battery though.

I have to disagree with you about the battery being able to keep up with the duty cycle you want to accomplish. The deep cycle battery which is a golf cart battery) on the trailer will handle the load without issues and you will not have to worry.

My single axle Maxxum dump trailer has a Bosch hydraulic pump which is quite common apparently. and I have dumped a lot of white oak block loads
being 4-5 loads in one day with a 40 mile round trip commute with zero issues. if your pump is struggling I would take it out and charge it overnight and have it load tested to check it and then if the battery is good look at replacing the pump.

J_J · Oct 9, 2011

demaree99 said:
I have a Mahindra 5010 with single remote at the rear of the tractor. I have a 7 x 14 dump trailer with 12,000# capacity, with the battery and it's own pump system that was on the trailer when I bought it. It works perfect for my constuction business and hauling my equipment. I notice that after 4 or 5 dumps the battery becomes weak and won't lift as fast or sometimes not at all till the truck re-charges the battery, or I plug it in over night. My question is since I have alot more dirt to move around the farm and could easily haul 15 to 20 loads on a Sat. how can I bypass the factory installed trailer lift system and put in another hose and use the remote on my tractor to dump the trailer using the tractor's hydro's system and then just remove the hose and go back to the factory dump system ????? I do have a 7-pin hookup on the tractor for trailer lights and brakes and it does have a 12 volt " hot wire " to charge the battery on the trailer like my truck does, but it will never keep up with the amount of dumping I need to do.

I believe you can do what you want by using a long hose from your remote valve by connecting the hose to work port B, and plug work port A port. The long hose would connect to the base end of the dump cyl.

It should dump faster and have more dumping capacity.
You may have to add fluid to the tractor reservoir.

EMB5530 · Oct 9, 2011

I borrow a dump trailer from time to time and have noticed that it is full of ATF instead of hydraulic fluid or hy tran so you may want to flush the cylinder before hooking to your tractors system.

J_J · Oct 9, 2011

With the dump cyl retracted, there will not be very much fluid left. If you store the dump trailer with the hose from the tractor, there will be a little fluid in the hose.

You might try swapping out the trailer fluid with the same tractor fluid you are using.

As a side note,

All our Power-Trac's use 10W-40 motor oil as the hyd fluid, and has been working good for about 30 years.

radioman · Oct 9, 2011

wouldnt you save alot of hassle and cost of hydraulic hoses and changing the current setup by just adding a charging circuit from your tractor to trailer to charge? You can go on indefinately this way.

Fixemall · Oct 9, 2011

radioman said:
wouldnt you save alot of hassle and cost of hydraulic hoses and changing the current setup by just adding a charging circuit from your tractor to trailer to charge? You can go on indefinately this way.

That and a deep cycle battery, I hauled and dumped 9 loads of very wet mulch with my dump trailer today without hooking it up to anything and it went up as fast on #9 as it did on #1.
You can also run dual batteries on dump trailers.

demaree99 · Oct 9, 2011

leonz said:
You may simply need a new deep cycle battery as it may have a bad cell or it is near the end of its usefull life.

I think you do need a new battery though.

I have to disagree with you about the battery being able to keep up with the duty cycle you want to accomplish. The deep cycle battery which is a golf cart battery) on the trailer will handle the load without issues and you will not have to worry.

My single axle Maxxum dump trailer has a Bosch hydraulic pump which is quite common apparently. and I have dumped a lot of white oak block loads
being 4-5 loads in one day with a 40 mile round trip commute with zero issues. if your pump is struggling I would take it out and charge it overnight and have it load tested to check it and then if the battery is good look at replacing the pump.