Hi boys and girls
As you lot are a wealth of knowledge thought I would put a question.
I have just fitted little 031 Hiab to my truck. When no load on crane all works fine although hydraulic pump sometimes noisey.
when I put load on it wont pick it up sometimes its like the electric pump wants to stop with load.
Could there be air in system as hoses disconnected when I bought it.
Just had pump motor rewound so I know that's OK.
Could it be the hydraulic pump??

Thanks

PANDA 

Supporting the London Air Ambulance with my Brothers