Back in January I picked up an electrically powered hydraulic lift table at an auction. It raises and lowers with foot-pedals that control a motor and solenoid down valve. Below is the lift table. It has been very nice to put the work at any height I want. Prevents me from bending over in weird positions and good for when my daughter is working in the shop too since I can lower it down to her height.
I'm having an issue where the height of the table slowly drops, maybe 8-12 inches overnight. I had a much smaller and cheaper foot operated lift table that didn't hold it's height, so I knew this could be an issue. This is one of the first things I checked when I got the unit. For the first month or so it would hold it's height overnight (or at least it moved so little, I would never notice).
1. I have replaced the foot pedals (the ones in the pic are new) and the solenoid down valve. No improvement.
2. The table drops with the unit plugged in and unplugged, so I can rule out the possibility of the solenoid being slightly energized.
3. I don't see any hydraulic fluid on the floor or on the lift table, so I don't think anything is leaking out of the system.
I don't know anything about hydraulics and I don't know how to debug this thing. I had high hopes that replacing the down valve would do the trick, but it didn't. Any suggestions?
I'm having an issue where the height of the table slowly drops, maybe 8-12 inches overnight. I had a much smaller and cheaper foot operated lift table that didn't hold it's height, so I knew this could be an issue. This is one of the first things I checked when I got the unit. For the first month or so it would hold it's height overnight (or at least it moved so little, I would never notice).
1. I have replaced the foot pedals (the ones in the pic are new) and the solenoid down valve. No improvement.
2. The table drops with the unit plugged in and unplugged, so I can rule out the possibility of the solenoid being slightly energized.
3. I don't see any hydraulic fluid on the floor or on the lift table, so I don't think anything is leaking out of the system.
I don't know anything about hydraulics and I don't know how to debug this thing. I had high hopes that replacing the down valve would do the trick, but it didn't. Any suggestions?