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Slide Creep!

tntcrock
Explorer
Explorer
I have 2 hydraulic slides. The bottom of the bedroom slide will creep away from wall when in closed position. Takes a while, like week or more to do so. I have a Lippert pump, and I know it has a slight fluid leak between pump and tank, but don't think thats the problem. Read up on here where it could be the solenoids, but don't know where those are located. What are my things to check out?

Thanks
16 REPLIES 16

tntcrock
Explorer
Explorer
Does the Lippert 643150 have a override valve? I don't recall seeing any type of release lever or anything.

dougrainer
Nomad
Nomad
tntcrock wrote:
Does it matter if the slide is open or closed, when removing the hex nut?


NO, unless you release the pressure, it will spew retracted or extended. There is ALWAYS pressure on a Hyd slide system. What you do is release the override valve/s and let the slides relax. That removes the pressure. You will then just get a small amount of fluid drip out. Doug

tntcrock
Explorer
Explorer
Does it matter if the slide is open or closed, when removing the hex nut?

Denny___Jami
Explorer
Explorer
tntcrock wrote:
Yes it's a 643150


I tried to find a parts breakdown but I couldn't, but by looking at a it I think it's the same setup as my Monarch pump. When you look at the pump where the hoses are on both sides you will find a large hex fitting, remove them and you will see a screen and ball check mounted in the hex nut. The ball check is what stops the fluid from flowing back to the tank and all it takes is a small piece of dirt and the slide will creep. I cleaned mine by using hot water and soap, the ball is easy to depress for cleaning. I just shake it in the water rinse and let dry. You will also find a spool valve with a spring on each end, just put it back in the way it came out, because of the way yours is mounted it should stay in the pump.

Denny
2013 F350 SC DRW 6.2 V8 4.30 gears Air Lifts
2003 HitchHiker Premier 35FKTG 215/75/17.5 Goodyear G114 Tires

tntcrock
Explorer
Explorer
Yes it's a 643150

Cool_Canuck
Explorer
Explorer
You may not have any solenoids. Mine does not. I would not worry about a little creep in the bedroom slide. It maybe caused by some air in the system or just temperature change. My bed slide will relax at times. Not much. It is the lightest slide of the bunch and will move before the others. Any changes in the pressure shows up there first.
'05 Day Dreamer by Cedar Creek
2011 F250 PSD CC

You can lead a horse to water.
You cannot make it drink.

CA_Traveler
Explorer III
Explorer III
Is your pump 643150?
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

CA_Traveler
Explorer III
Explorer III
It's also possible that the cylinder has an internal leak that won't be visible.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

tntcrock
Explorer
Explorer
I'll check things this weekend.
Thanks for info

CA_Traveler
Explorer III
Explorer III
4 hoses suggests the valves are there also, ie a hose to each end of the hyd cyl, 2 slides and 2 cylinders. Somewhere there are valves that control the fluid direction for each slide ie in/out. When closed the slide will not move unless there is a leak. Check the hoses and hyd cyls to make sure there are no leaks anywhere.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

tntcrock
Explorer
Explorer
I'm not at camper now, but I only remember the 4 hoses attaching to top of pump.
Besides having the electrical solenoid on top.

CA_Traveler
Explorer III
Explorer III
Or you can edit your post and change the size.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

CA_Traveler
Explorer III
Explorer III
Saw that pic. When you click on the pic link there is a option to set the size.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

CA_Traveler
Explorer III
Explorer III
That's another solenoid used for the motor. Keep looking for the wires/solenoids/valves that control the fluid. What do you see on your pump vs the picture you posted? Your solenoid/valves could be located elsewhere.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob