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Old 09-17-2015, 11:52 PM   #1
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HWH Leveler cylinder

I have a leaking HWH leveling cylinder pressure sensor/switch, part # RAP 8003. I have ordered a new one but now I am looking for instructions for installing it. HWH hasn't answered their phones for the last couple of weeks. Anyone have info?

Thanks

Jim
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Old 09-18-2015, 07:22 AM   #2
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Jim, I can't find a part in my manual with that name .

What series of HWH are you dealing with?
Coach year?
Does this mount on the jack it's self or the pressure manifold?
My have a different name in my old manual.
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Old 09-18-2015, 07:58 AM   #3
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There are diagrams here, sorry no instructions, perhaps this will help:

http://www.hwhcorp.com/ml10906.pdf
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Old 09-18-2015, 10:05 AM   #4
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Ok , I found the P/N in Rocky's posted file.

The sensor , mounted on top of the cylinder, MUST ! only be replaced with the jack fully retracted, so there is no hydraulic pressure in the system . Make sure the area around the sensor is clean , so no debris can be knocked into the hole, while it's out. The sensor isn't grounded through the threads so seal tape can be used.
Access could be limited by your particular installation, you may have dis-mount the jack and drop it slightly for better access.
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Old 09-18-2015, 02:02 PM   #5
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Just unscrew sensor and replace with jack retracted.If you need to remove jack extend then place wooden shims between coils of spring then retract makes it a lot easier to remove springs. May need to put pry bar or jack under foot to get it to retract.
good luck dave
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Old 09-18-2015, 11:31 PM   #6
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HWH Leveler Cylinder

Thanks to all you guys who responded. The Pressure sensor/switch is on the top and side of my cylinder, each of the four cylinders have the same pressure sensor/switch.

This HWH system is on an 2006 Alpine Apex (HWH 2000 leveling system).
From my research this pressure sensor/switch is pretty common on the straight leveler systems.

"dakratdave" & "Skip426" answered my questions concerning installing a new switch. Thanks very much.

Jim
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