Trailer hiab project, advice please

[muttley9050]

So I've started work on mounting a hiab to a trailer. I've successfully mounted the crane and put it to test.

Running off the 12v pump in picture. Jump leads to battery.

The pump was very hot on the end of shaft in not long. The jump leads started melting in not long. Should the pump get that hot or is there a problem? Is it realistic to run this off 12v or should I buy a power pack with engine to run it off? What's a better set up? I'm new to hydraulics really so it's a learning curve. Also there a leak from the lever control unit. Is it advisable to take this apart myself and try to fit new seals/gaskets or should I get it overhauled professionally?

Opinions please.

Thanks

James

 

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[simont]

Keep the pictures coming.

 

Have similar plans for winter, but was going to run the hydraulics from small engine. ( Loncin or similar)

[Climbingmagnus]

Do you have any information on the motor? How much current does it draw or how many watts is it rated at?

[Stubby]

Not the ideal set I suppose but ok to test it . The jump leads melting sound like High resistance caused buy a bad connection or just too flimsy / thin leads . Try it with a set of Hefty leads that you could jump start a lorry with .

[muttley9050]

Will check if there is any data on the pump later. Thx

 

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[Rich2484]

Not the ideal set I suppose but ok to test it . The jump leads melting sound like High resistance caused buy a bad connection or just too flimsy / thin leads . Try it with a set of Hefty leads that you could jump start a lorry with .

 

What he said. You need the very thick cables that are used for batteries. Not jump leads. And having a good connection soldered on the ends.

 

Jump leads are not meant for a long haul of power. Only a short burst.

 

Make sure the earth contentions are also very good. Clean the connections up so it's on good shiny metal. No paint at all. And also ensure the terminals on the battery are clean.

 

You will need to source some power from a motor for the long work. A battery will not power for long and soon run flat.

 

Could you not just attach the pump to a small engine once it's mounted. Would be a much easier option.

[eggsarascal]

You need a oil/ relieve tank in the system. It looks like you have pressurised the system with nowhere for the oil to go, hence everything getting hot.

[muttley9050]

What he said. You need the very thick cables that are used for batteries. Not jump leads. And having a good connection soldered on the ends.

 

Jump leads are not meant for a long haul of power. Only a short burst.

 

Make sure the earth contentions are also very good. Clean the connections up so it's on good shiny metal. No paint at all. And also ensure the terminals on the battery are clean.

 

You will need to source some power from a motor for the long work. A battery will not power for long and soon run flat.

 

Could you not just attach the pump to a small engine once it's mounted. Would be a much easier option.

 

I have a generator but don't think it has a 12v option. Wouldn't be certain how to mount an engine on the 12 v pump, but will think about it. Any advice on how to go about this? Thanks

 

 

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Edited April 9, 2014 by muttley9050

[muttley9050]

You need a oil/ relieve tank in the system. It looks like you have pressurised the system with nowhere for the oil to go, hence everything getting hot.

 

I assumed that the big Blue tank on the pump acted as a reservoir/relieve tank? Do you think it needs another one?

Maybe a small jcb type power pack would be the easiest way?

 

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[treequip]

That pump tank unit just isn't suitable for your job, its for intermittent use applications such as tail lifts or small tippers.

 

If you use it in anger it will die in short order