HWH Jack / Solenoid problem
Well, just to update since I've posted this before, about 2 months ago I purchased a 1997 Thor Residency motorhome. The price was incredibly because the 2 slides, all 4 jacks and the generator did not work. After replacing a fuel line, I got the generator working. For the slides/jacks I contacted HWW and they suggested a new shuttle valve. I bought one and swapped it out, but nothing changed. HWH was convinced it was the pump/tank assembly and that is what the prior owner thought as well. However, after some additional tinkering with the system I discoved that the electric motor was installed backwards (power lead reversed). When I swapped them over the slides and jacks worked.
Unfortunately, only 3 of the jacks worked. The right front jack came down about 3 inches and would not go back up. I tried opening the "T" handled valve, but it still would not budge. Several people suggested that the jack was bad and needed rebuilt. However, I felt that I needed to do some more investigating. I wanted to test it out by either swapping the 2 front jack solenoids or swapping the lines at the manifold. I spoke with HWH and they advised doing the lines.
Well, I swapped the two front lines for the hydraulic jacks where they come out of the manifold. When I released the hose for the stuck right front jack a bunch of fluid came out. After they were hooked up I tried the jacks and WOW, the right front jack worked fined. It came completely down and lifted up the RV. However, as expected, the left front jack now did not work. I also left the jacks down for about a half hour and there were no problems. When I used the "dump" button I measured the voltage at the soleinoid for the suspected soleinoid and it was about 11 volts. Is that voltage correct? Since the solenoid is getting power, would this mean that the right front solenoid is bad? I didn't try it while I was there, but I was thinking of swapping the input connectors on two of the solenoids to make sure it's getting the right voltage or is the 11 volts correct?
Assuming it is the solenoid, does anyone know how much one of those cost? Are they specific to my RV or universal?
Thanks,
Dave
Unfortunately, only 3 of the jacks worked. The right front jack came down about 3 inches and would not go back up. I tried opening the "T" handled valve, but it still would not budge. Several people suggested that the jack was bad and needed rebuilt. However, I felt that I needed to do some more investigating. I wanted to test it out by either swapping the 2 front jack solenoids or swapping the lines at the manifold. I spoke with HWH and they advised doing the lines.
Well, I swapped the two front lines for the hydraulic jacks where they come out of the manifold. When I released the hose for the stuck right front jack a bunch of fluid came out. After they were hooked up I tried the jacks and WOW, the right front jack worked fined. It came completely down and lifted up the RV. However, as expected, the left front jack now did not work. I also left the jacks down for about a half hour and there were no problems. When I used the "dump" button I measured the voltage at the soleinoid for the suspected soleinoid and it was about 11 volts. Is that voltage correct? Since the solenoid is getting power, would this mean that the right front solenoid is bad? I didn't try it while I was there, but I was thinking of swapping the input connectors on two of the solenoids to make sure it's getting the right voltage or is the 11 volts correct?
Assuming it is the solenoid, does anyone know how much one of those cost? Are they specific to my RV or universal?
Thanks,
Dave
