Dump Trailer pump motor not working. simple fix. replace the solenoid / switch.

[@drivewaymarvels311]

Thanks for video. I kept hearing a clicking from the plug for controller. Turns out you’re supposed to use the handle on the plug to pull it out and not yank it out by the cable. Wires were pulled out of position.

[@ThriftyGarage]

We just installed the Pole Pal USA 7pc Dump Trailer Wiring Set on our PJ Dump Trailer and couldn't be happier! Their kit uses 2 gage wire and Anderson quick connects. We have tried adding a solar panel but it still wasn't enough. We have 3 work trucks and 3 trailers (dump, equipment and enclosed) and plan to install the truck side wiring on all 3 trucks and the trailer side wiring on all 3 trailers. It is the best solution I have found by far! We will use the trucks battery and alternator to supply power to the pump on the dump trailer, winch on the equipment trailer and interior lighting, outlets and accessories on the enclosed trailer.

[@misterbulger]

Thanks for the video i have a dump truck and its impossible to see whats going on from below the truck. Its one of those jobs thats 100% by feel. So far everything is just super corroded since a salt spreader sat right above it. Id replace the solenoid but everything is caked in grease and i cant see the little screw 😢

[@roscoesrepairs]

So, the dump trailer doesn't have a pump compartment? With a hood?

[@misterbulger]

@@roscoesrepairs no its mounted under the bed frame so the bed has to be up to acces it. I just managed to get it to go up but then it cut out, but it was intermittently working as i heard the clicking going in and out as i pressed the buttons. Its got a steel safety arm that can be stuck down to keep it from crushing me while i work on it. Headed to Advance Auto now i think they have the relay. If its the valves, thats going to be a problem without removing the entire unit because they unscrew and back into the frame making them impossible to remove without pulling the entire pump and disconnecting the lines. Bunch of asshole engineers over there at Maxam Mfg, long out of business. I may have cracked the plastic housing on one of them not knowing what the heck im doing. I did see on amazon i can get a full replacement pump assembly for $250. I may just relocate it to one of the tool boxes and have an all new system.

[@jiggityyjake2992]

My pump is turning but isn’t pumping enough pressure to lift, I’ve put new fluid and topped off the tank, made sure my battery has 12v and still not pushing enough fluid. Do you think it could be the solenoid

[@roscoesrepairs]

@jiggityyjake2992 There are two valves on the pump that may not be opening. One valve is for up, and the other is down. How old is the pump/trailer?

[@jiggityyjake2992]

@@roscoesrepairs I only have one, replaced the valve and coil to see if that would help and it didn’t help increase the flow. It’s pretty old, it’s a 2005.

[@melecio306]

If it wont go up but when i press the down button theres a pull on the down valve when i put something metal towards it would you say up valve is bad? Remotes connections looked good too

[@roscoesrepairs]

Did you jump the solenoid?

[@melecio306]

No i did not ill be trying that later this afternoon

[@melecio306]

@@roscoesrepairshow do i jump it?

[@roscoesrepairs]

@@melecio306 connect the two large terminals on the solenoid. Screw driver between them or Needle noise pliers. While pressing the up or down button.

[@roscoesrepairs]

If everything works, the solenoid is bad or not grounded.

[@roscoesrepairs]

Be sure and get a 100 amp solenoid

[@hydraulicmaster]

motor relay broken , helpful advance to start ..

[@muhammadtaahir8379]

Mines doesn't pick up it just makes a clicking noise,I changed the solenoid and the solenoid coil,if you pick the bin up manually and it gets jammed it goes down when you press the button but makes clicking noise when trying to pick up,any advise or opinion

[@williamsmith8760]

Can you jump a hydrolic pump without the solenoid to test the pump?

[@roscoesrepairs]

You can put a screw driver between the two big terminals on the solenoid, but you still need to push the up down switch to operate the valves on the pump. If you hear the pump run, you just "bypassed" the solenoid. The solenoid is probably bad if that works.

[@Terablue121]

How did you know that's what it was. Should the pump work if you jump the solenoid

[@roscoesrepairs]

Yes. You could take something and short it across the two big terminals on the solenoid. But you also need to press the up or down button on the controller to operate the valve switches so the fluid can be routed properly.

[@williamsmith8760]

What does a good motor read on ohms. I replaced my solenoid but still no go

[@roscoesrepairs]

The solenoid may not have a good ground. How many wires are hooked up to the solenoid? One large wire should go to the positive "+" on the battery. One large wire should go directly into the motor. A small wire should be hooked up to the small terminal on the solenoid. If you put 12 volts to that small wire, it is the same as activating the solenoid normally. If the motor or solenoid doesn't have a good ground, it also won't work. Did you try to bypass the solenoid? Did you get a 100 amp solenoid?

[@roscoesrepairs]

There should be two smaller wire connections on the solenoid. One is "S" for the starting "+"positive 12 volts. The other should be a "C" to hook the ground to if you have a bad ground.

[@TexasBroskiActual]

Where did you buy the solenoid?

[@roscoesrepairs]

Online, any 100 amp will do. Amazon Qagea Dump Trailer Solenoid - 12 V 4 Terminal 100 Amp Intermittent Duty Solenoid Relay Replaces SAZ4201GJ SAZ-4201ER 7522 190107 070009. $21.99

[@roscoesrepairs]

Make sure you get a good ground. You can hook the positive to the "s" terminal. And negative to the other small connector. But you need to run another wire.

[@21gramz]

I have a question,I had a load about 5 yards of sandy lome in my trailer,when I dumped it and came down the actual dump trailer don’t line up with the frame of the trail now ,so it stays up Mybe like 8 inches because of it hitting the metal plate guide ,do you know what caused this ? Thanks

[@roscoesrepairs]

Take a "come- along" and hook it to the side that is off and the opposite side of the frame. Tighten it till it is straight. The trailer frame probably wasn't built strong enough to handle the side pasture of the load while in the up position.

[@21gramz]

@@roscoesrepairs I’m thinking I put to much in the trailer , I’ve pulled heavy loads but that might have been to heavy , thanks for the advice I’ll do that

[@roscoesrepairs]

Were you on a level surface when you were dumping? I've seen to many dumping videos gone wrong on uneven surfaces.

[@21gramz]

@@roscoesrepairs I was on the street it was pretty level ,do you think my solenoid? Or the pivot points ?

[@roscoesrepairs]

The solenoid is an electrical part. Does the trailer still go up and down? Something bent on the frame or the bottom of the bed. Send me a picture of the beds alignment with the frame. [e-mail].

[@glennlee7079]

My pump runs when pressing up button, but doesn't lift - where to I begin to troubleshoot? trouble first started with trailer not coming down. Seems to work today, but now can't get it to go up but sounds like pump working

[@roscoesrepairs]

Have you checked the fluid level?

[@glennlee7079]

full, @@roscoesrepairs

[@muhammadtaahir8379]

When I press the button on mine it makes clicking noise and doesn't pick up,if u pick it up manually and it gets stuck while it's up and you press the button it goes down,could the problem be the solenoid,Tipper was working had the vehicle parked of for about a month and then it stopped working

[@roscoesrepairs]

Check the voltage on both sides of the solenoid. If you have 12 volts on both sides when you hear the clicking, the trouble is in the valve switch.

[@muhammadtaahir8379]

@@roscoesrepairs thank you for the quick reply,will try it out

[@roscoesrepairs]

If you don't hear the motor in either direction, it is not getting power to the motor. If the pump doesn't activate on the way down, the pump fluid will come out because the pump is not returning it to the holding tank. Are you leaking hydraulic fluid? If you press the down button when the trailer is up, the down valve will open, and the pressure from the weight of the bed will be released.

[@Terablue121]

What's a valve switch

[@roscoesrepairs]

There are two valves that control the flow of the hydraulic fluid through the hoses. If one of them is stuck closed, the fluid will not flow correctly. They can be seen in the video to the right of the solenoid. They are, themselves, small solenoids that operate the a valve.

[@golftownpro999]

Mine goes up but doesn't go down... It's not the remote 🤔

[@roscoesrepairs]

Down switch/ solenoid on pump.

[@roscoesrepairs]

Have you tried to swap the two black valves?