powering 12v motor

[markus19]

Hi guys

I have just bought a use hydraulic oil pup that runs from a 12v motor



I didnt have a 12volt battery to try it with but i had a 240v to 13v 5amp

Inverter i wired it up via the solenoid but just got a few clicks from the
Solenoid


I then ran a 30ft cable from my 12v battery in my van to the solenoid
But this time just got rapid clicks but no motor kicking in


I then trying wiring direct leaving out the solenoid ... nothing...




i then took the motor off the pump and plugged it direct onto the 12v van battery it fired up


what could i use to power the motor from a mains connection e.g what amps or watts

thanks

 

[telectrix]

what wattage or amperage is stated on the motor?

 

[Marvo]

This kind of hydraulic pump motor could easily be 50Amps at 12VDC, the losses will be high with 30 foot leads at the best of times, what cable were you using. The power required is alos probably way too high for your inverter.

Can you attach a few pictures of the motor and solenoid and hopefully we can see the info sticker as well if there is one.

 

[markus19]

here is a few images

 

[Marvo]

Okay, if those blue wires that look like they've had a haircut when they were stripped are supplying the power then they're grossly undersized.

You need wires similar thickness to decent jumper leads and you need to keep them short as possible (<1meter preferrably).

You can post your inverter details but if it's a little camping type inverter then it's way undersized. That motor could be between 25-50Amps at 12VDC.

Why is the end of the motor missing?

 

[Guest111]

that unit is going to pull some serious current,best thing is buy a 12v car battery and use that close by the pump,a battery would only cost about £40,you'd end up paying at least double that for a transformer unit to power it.

 

[HandySparks]

Looks very similar to a car starter motor. Loads of current!

 

[markus19]

hello

the two power supply cables are the green and yellow (which is neutral)
and the black one which is live the blue cable is what i presume went to a switch to switch
it on and off

the black live goes onto the solenoid and the neutral onto the solenoid housing that bolts onto the motor housing

and then there is one blue wire from the solenoid with the live and then one blue wire on the other side of the solenoid theys wires need to be connected for anything to happen


this motor bold onto the side of the pump direct none of it is missing

 

[Marvo]

Don't try run the motor without it being bolted to the pump then, it's likely to destroy it.

 

[PEG]

Hi,if the motor ran off the pump,check the hydraulic pump is not seized or stop-ended hydraulically. Can you turn the pump manually? When you connect the two up,all being well,do not run the unit too much without oil in system. Also,things like temperature,oil viscosity,cable CSA and length,will all affect amps drawn,which under load will be heavy. Good luck

 

[markus19]

ok guys it seems that i havent been giving the motor

enough power...

i dont really want to power it from a battery as i dont think

the battery would last long

i want a way of powering it from the mains but i

need to know what gear i would need to do this and also

how many watts or amps i need to power it up

thanks

 

[markus19]

New Monarch Tommy Lift Hydraulic Motor 12V CCW 39200388 Prestolite 463620 464058 | eBay


putting the part number in google this comes up
which is just like mine

 

[markus19]

Okay, if those blue wires that look like they've had a haircut when they were stripped are supplying the power then they're grossly undersized.

You need wires similar thickness to decent jumper leads and you need to keep them short as possible
(<1meter preferrably).


i see what you mean now there is abit missing abit that
goes across to hold the coil central some one must
of been fiddling....

 

[Knobhead]

A hydraulic pump should have a bypass/unloader valve for it to start. Otherwise it will be locked rotor current you have to deal with. A displacement pump has a swash plate to control the flow/pressure.
I’ll be honest I’ve never dealt with a pump this small.

I’ll help if I can.

 

[HandySparks]

How long do you want to run it for, and how often?