11-02-2015, 06:01 PM
Upon returning from a week trip the rear (room2) slide would not extend. It was first thought the locking pins were bound. This proved to be incorrect. I called Creslie who connected me with Mark. His thought was a failed solenoid.
A search in the slide threads produced the name of Paul, a HWH field technician serving the west. He suggested the fluid pressure be checked and the possibility of a failed solenoid. I purchased a 5000 psi filled gauge and a short tail. Connecting it to the manifold produced a pressure of 3300 psi, well within the 32 to 34 hundred range. At this point I want to express the caution that should be exercised with high pressure fluids. A danger of injecting the fluid under the skin exists and usually with less than a desirable outcome, often amputation or serious infection. Always bleed the pressure off before any fittings are opened.
I purchased an solenoid 2.25" (1.5" are also used on some systems) and sought to determine which was the culprit. No drawing existed at Newell but several close and by process of elimination the correct set was found. I made up a Weatherpack male/female patch with a pilot light which would enable a visual if voltage was present. No voltage was found on either lock or unlock. (I had a helper operating the extend/retract switch).
The control boards consist of logic and output (for this discussion) and are separate for ROOM 1 & ROOM 2, the output boards have LED's. Yellow for the signal to the relay and red for the fused voltage out of the relay. Neither were illuminating. I then removed the board since it would not swing on the hinged standoffs. There I found the ribbon cable from the logic board pulled loose from the output board. Plugging it back in and a test produced results! The slide went out!!
I watched the LED's as the unlock then extend then lock illuminated. There are LED's for pressure, pump, seals, and others. I could not find a drawing to match exactly but did find a Marathon drawing with the same numbers as used on this coach.
Hopefully this thread will assist someone else with a non-extending slide.
A search in the slide threads produced the name of Paul, a HWH field technician serving the west. He suggested the fluid pressure be checked and the possibility of a failed solenoid. I purchased a 5000 psi filled gauge and a short tail. Connecting it to the manifold produced a pressure of 3300 psi, well within the 32 to 34 hundred range. At this point I want to express the caution that should be exercised with high pressure fluids. A danger of injecting the fluid under the skin exists and usually with less than a desirable outcome, often amputation or serious infection. Always bleed the pressure off before any fittings are opened.
I purchased an solenoid 2.25" (1.5" are also used on some systems) and sought to determine which was the culprit. No drawing existed at Newell but several close and by process of elimination the correct set was found. I made up a Weatherpack male/female patch with a pilot light which would enable a visual if voltage was present. No voltage was found on either lock or unlock. (I had a helper operating the extend/retract switch).
The control boards consist of logic and output (for this discussion) and are separate for ROOM 1 & ROOM 2, the output boards have LED's. Yellow for the signal to the relay and red for the fused voltage out of the relay. Neither were illuminating. I then removed the board since it would not swing on the hinged standoffs. There I found the ribbon cable from the logic board pulled loose from the output board. Plugging it back in and a test produced results! The slide went out!!
I watched the LED's as the unlock then extend then lock illuminated. There are LED's for pressure, pump, seals, and others. I could not find a drawing to match exactly but did find a Marathon drawing with the same numbers as used on this coach.
Hopefully this thread will assist someone else with a non-extending slide.
Gordon Jones
2000-45'-2slide-#567