Topic: Problem with my hydraulic scissor lift

[q2418130103p]

So I've got a scissor lift with an electric motor that runs a hydraulic  pump.

It is sorta like this:




Well I noticed awhile back that when I started to lift something that the pump would make a couple click/pop noises.  But it was very brief, and the jack went right up.  Well now it only goes up a couple inches, then just sits and makes click/pop noises.  With no load on the lift it goes up fine.

So this thing is heavy... and there is a lot of it.  Should I start up by bringing the motor/pump to be checked out, or the piston?  I know I should bring both, but it is going to be tough and there is something currently on top of the lift that will be hard to move (long story).

[jamesb]

if you are wanting to take it apart check out the gears sometimes they can get stripped and when putting aload on them they will only move a litle bit thats where your gears could be stripped down i used to work for a auto electric shop and had to rebuild hydraulic pumps (prestolite) those is it was usally the seals leaked and soaked the armature but i would start with the gears

[q2418130103p]

well, since it already doesnt work I guess it wont hurt to take it apart.

Either way, the problem does sound like it is at the pump right?