hi i have a bobcat 334 that the swing is really slow and the blad also travels very slow and wont lift the machien. i have serched the site some and have found out that both these functions are on the same pump? bad pump? a way to check this before i proceed. thanks in advance for any derection
no one can help with this
You probably have a restriction. I would check if the pump has a strainer and change the return filter
i have changed the filters but not looked for a pump strainer
also i have checked relief valve pressure for that circuit and it is at 3000psi not 3500 as it should be and i can not get it to adj higher
You may also want to check for a relief on both of those circuits. The slow cycle times mean you have low flow but the lack of ability to lift the machine is a lack of pressure. So either you have a relief that is broken, the pump is just about gone, or something else but i would try the first two. Maybe head to northern or the farm store and hook a pressure gauge in the circuit
Guess I should update the page before I reply LOL. Is this a gear pump or piston pump
it is a gear pump
If you can't get more than 3000psi with the relief turned all the way in I would say the housing is worn or the gear is spinning on the shaft
just pulled pump apart, the i guess you would call the idler gear side of the pump is toast. strang is the input side looks good.
Pics would be nice. Please let us know how the fix turns out. Best.