HWH leveling system 310

ROADSTARJR wrote:
I close or counter clockwise them and they do not extend pump sounds under load, all 4 retract, the odds of 4 solenoids ALL leaking is astronomical.

They CLOSE clockwise. Counter clockwise they open. OPEN them and see if all 4 jacks extend. IF they do, then all 4 solenoids are probably burnt out. BUT, you check for 12 volt power at each solenoid when either retracting or extending to verify the 4 fuses for the solenoids are not blown. What will burn out a HWH solenoid is IF it has power for more than 15 minutes. The solenoids are momentary (no more than 5 to 7 minutes at a time) coil solenoids. LONGER than that and they will burn up. A common reason to burn 1 or all 4 is when you try to retract and one jack does NOT fully retract but you can travel,so you leave it in STORE mode while traveling. After about 15 minutes all 4 solenoids will burn out IF 1 or more jack down lights stay ON. Once the last red down light goes out the retract timer shuts the system off. Doug

I close or counter clockwise them and they do not extend pump sounds under load, all 4 retract, the odds of 4 solenoids ALL leaking is astronomical.

RLS7201 wrote:
Here is the service manual. You should be able to figure it out from the manual.
I agree with Doug. The shuttle valve or the plumbing in that area should be the problem.
See the hydraulic schematic about halfway down the document.

Richard

The shuttle valve has nothing to do with his problem NOW. It was probably the cure for his previous problem. The T handle solenoids are on the hose side of the manifold. The shuttle valve is BEFORE the T handle solenoids. So, if all 4 jacks extend and then retract when he stops extending, then the T handle solenoids are the cause. I doubt all 4 solenoids are bad. Doug

Here is the service manual. You should be able to figure it out from the manual.
I agree with Doug. The shuttle valve or the plumbing in that area should be the problem.
See the hydraulic schematic about halfway down the document.

Richard

ROADSTARJR wrote:
I tried to level it up and as soon as I let go of the extend button the jacks retract. So I replaced the SHUTTLE value and that didn't fix it. Any help please , I called HWH and I was told that the Tech's were two weeks behind and put me on a list to be called

You have NOT closed the T handles. That is the reason they retract as soon as you stop extending. Close them. Doug

I tried to level it up and as soon as I let go of the extend button the jacks retract. So I replaced the SHUTTLE value and that didn't fix it. Any help please , I called HWH and I was told that the Tech's were two weeks behind and put me on a list to be called

You are not explaining your problem correctly. From your post you seem to state that you DID get the jacks up by opening the T handles. Is that correct? If ALL 4 jacks would NOT come up unless you released the T handles, but all 4 jacks WILL extend with the T handles closed, then the SHUTTLE valve needs replaced. Explain all the parameters more fully. Doug

The 14 year old springs probably need replaced. If the solinoid or valves we not working you would not be able to push the jacks up.