Hwh jacks wont go up.

[David0725]

I stored the rv with the Jacks down for the first time. My guess it didn't like that.3 of them want back up and 1 the passengers front only went half way up. I tried re-leveling 3 or 4 times I even losing the 5/8 nut's on the pump and that didn't work. now at this point I not all 4 down and none will go up..lol What next??

[Retired_JSO]

Spray each extended leg with wd-40 then wipe per HWH.

[dougrainer]

David0725 wrote:
Thanks for all your help I want back today hit store again and they all went up. But I was ready to Loosen Shuttle valve that would have done it for sure. thanks again.

A BAD shuttle valve will do what you have experienced. REPLACE the Shuttle valve or it will stick again. Doug

[David0725]

Thanks for all your help I want back today hit store again and they all went up. But I was ready to Loosen Shuttle valve that would have done it for sure. thanks again.

[Snomas]

Try putting the Jacks in store mode and w/ long 2x4 pry each one up and then have someone trouble shoot the problem!

[Raymon]

To my knowledge, most leveling jacks are one way hydraulic cylinders. It takes hydraulic pressure to extend the jacks and the springs retract the jacks. To retract the jacks, a valve must open to allow the hydraulic oil to free-flow back to the oil reservoir tank. Since all 4 levelers do not retract, I suspect the return valve is stuck closed. This can happen when valves are left in one position for a long period of time. Some valves may have a manual over-ride. If you can locate the return valve, with the control in the retract position, you might try to lightly tap the valve with a hammer. If this fails, the valve may have to be disassembled and cleaned. I wish you the best.

Ray

[dougrainer]

David0725 wrote:
HwH computer controlled Leveling System 610 is what the book say it is.

I missed where you stated you now have all 4 extended and none will retract? If so, go back to the pump. You have the 4 jack hyd lines. Loosen each 5/8 nut again until fluid starts to seep out. If NONE of the jacks start to retract, you have bad internal seals on all 4 jacks. If some of the jacks start to retract---REPLACE the Shuttle valve. This valve will cause lack of retraction of all 4 jacks. Doug

[David0725]

HwH computer controlled Leveling System 610 is what the book say it is.

[Gjac]

Are you saying after you played with the Jack's none of the jacks will go up now? Which system do you have is it the 200 series kickdown jacks ?

[DutchStar38]

Re-level and spray the jacks with WD40 for a temporary fix. Another fix is put some transmission fluid on a rag and wipe the jacks then retract. Woeked for e when the jacks began to get sluggish in retracting. Good Luck.

[dougrainer]

That jack has a bad internal seal. You will need to replace it or have it rebuilt. Doug

[Johno02]

Borrow some type floor jack and raise that side as high as you can. Put bricks or boards under the jack foot, then lower the floor jack to put pressure on the HWH jack. If you have enough clearance, but the jack drectly under the jack foot. then try to raise it. The extra weight may be all that is needed to get it back up. Lube the jack well with spray lube first. HWH jacks just use spring tension to raise, and after being down all winter, they may just need a bit more push to come up.