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General Discussion of preventative/corrective maintenance and other technical issues regarding your coach that are not covered in other Mechanic's Corner categories (ex. refrigerators, water heaters, and compressors).

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  #1  
Old 10-21-2019
Skyway's Avatar
Skyway Skyway is offline
Satellite dish installer.
 
Join Date: Dec 2010
Location: Mission, BC
Posts: 335
Default Air Step

I have purchased a Fabco-Air solenoid 18GG-4-12VDC from Stephen to replace the one on my steps and the port positions are a little different.

If someone on here has gone through this same process could you tell me or provide a picture of how the lines are connected to this new solenoid.

Thanks...
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Les & Debra Willey
LesdotWilleyatSkywaySupplydotca
six04.7five6.192one
Mission, BC, Canada
88 WB40
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  #2  
Old 10-21-2019
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gcyeaw gcyeaw is offline
Gardner
 
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Here is what mine from DP looked like. Smaller fitting size as well.
Attached Files
File Type: pdf StepValve.pdf (22.6 KB, 95 views)
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Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
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  #3  
Old 10-21-2019
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Skyway Skyway is offline
Satellite dish installer.
 
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Location: Mission, BC
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Great that is exactly what I needed....

Thanks
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Les & Debra Willey
LesdotWilleyatSkywaySupplydotca
six04.7five6.192one
Mission, BC, Canada
88 WB40
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  #4  
Old 02-02-2020
Debugjaws Debugjaws is offline
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Quote:
Originally Posted by gcyeaw View Post
Here is what mine from DP looked like. Smaller fitting size as well.
Gardner,

I'm going through the same change out on my 91 WB. How did you determine which port controlled in versus out?
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Gerry Lefebvre
Newberg, Oregon
91 WB 40'
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  #5  
Old 02-02-2020
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gcyeaw gcyeaw is offline
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Quote:
Originally Posted by Debugjaws View Post
Gardner,

I'm going through the same change out on my 91 WB. How did you determine which port controlled in versus out?
blow air into the single input, it will come out an output depending on the valve position..
Attached Files
File Type: pdf AirStepOperation.pdf (20.5 KB, 17 views)
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86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
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  #6  
Old 02-02-2020
79Ranger 79Ranger is offline
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Something to add to this......when I was having troubles with mine, the shuttle was getting hung up in the bore and chattering and worse, sometimes it would hang half way and air would be leaking everywhere



Once I took it apart I cleaned the air line oil sludge off and changed the O rings it seemed all good and operated much better so I figured all done and good. Then it did it again after a couple of months...so I replaced it.



Fast forward to my next trip.....coolish at 28 degress, snow, rain etc. Stopped 7 hours in for a little break...opened door, step went halfway out...air leaking everywhere...grrrrrr.


Grabbed a wrench and closed the mufflers...that cured the leak...step flopping though...oh well it's all highway.


Once I got home I tore everything apart.....the **** cylinder seals were shot....you could close one of the ports with your thumb and still move the piston.


Put a new one in....works perfectly now.


Keep the cylinder in mind when dx'ing.
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Duncan
Alberta
1988 XXV 40WB

Last edited by 79Ranger; 02-03-2020 at 11:52 AM.
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  #7  
Old 02-03-2020
Debugjaws Debugjaws is offline
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Duncan - I am seeing a lot of the same symptoms you mention. My manifold is brand new. I scoped it out properly to understand which magnet was operating under which conditions (door position relative to mercury switch position), and ported the hoses to the corresponding ports from the manifold to the cylinder. I could never get it to work in both directions. I could pull the hose from the port in the manifold and the step would quickly go to that position. But if the mufflers were open, air was leaking and the step was sluggish, never going completely to either position.

And like you, I could move the step by hand and the cylinder would allow it. I'll be ordering a new one tomorrow!

Quote:
Originally Posted by F79Ranger View Post
Something to add to this......when I was having troubles with mine, the shuttle was getting hung up in the bore and chattering and worse, sometimes it would hang half way and air would be leaking everywhere



Once I took it apart I cleaned the air line oil sludge off and changed the O rings it seemed all good and operated much better so I figured all done and good. Then it did it again after a couple of months...so I replaced it.



Fast forward to my next trip.....coolish at 28 degress, snow, rain etc. Stopped 7 hours in for a little break...opened door, step went halfway out...are leaking everywhere...grrrrrr.


Grabbed a wrench and closed the mufflers...that cured the leak...step flopping though...oh well it's all highway.


Once I got home I tore everything apart.....the **** cylinder seals were shot....you could close one of the ports with your thumb and still move the piston.


Put a new one in....works perfectly now.


Keep the cylinder in mind when dx'ing.
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Gerry Lefebvre
Newberg, Oregon
91 WB 40'
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  #8  
Old 02-03-2020
79Ranger 79Ranger is offline
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Join Date: Oct 2014
Location: Westlock
Posts: 270
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Sure sounds like exactly what I was experiencing. I had also checked all wiring ect and all was good. Clippard had to build the piston as it was 4.5 inches but I had it within a couple of weeks.


Since then it has been perfect
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Duncan
Alberta
1988 XXV 40WB
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