Jack will not fully retract
I have one rear jack that will not fully retract on my class A RV. I have coated the extended shaft heavly with transmission fluid to no avail. Shaft seem straight and others go up quickly. I can f...
Forum Discussion
Since you have an HR, I'm going to assume you have the HWH system like I have.
On the pump you'll see four valves, each with a handle Make sure all four are open. This allows the fluid to flow back to the pump just from the pressure of the springs, like Brett said.
I have sprayed my jacks with silicone spray as I suspect the rubber seals are getting old at 23 years. That seemed to help. My springs are all original.
Finally, I changed the fluid in the tank just to make sure no foreign junk was causing a problem. My system uses MD 3, the transmission fluid. I think it was less than a gallon.
On the pump you'll see four valves, each with a handle Make sure all four are open. This allows the fluid to flow back to the pump just from the pressure of the springs, like Brett said.
I have sprayed my jacks with silicone spray as I suspect the rubber seals are getting old at 23 years. That seemed to help. My springs are all original.
Finally, I changed the fluid in the tank just to make sure no foreign junk was causing a problem. My system uses MD 3, the transmission fluid. I think it was less than a gallon.
