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Tires, Wheels, Brakes, Steering and Suspensions Discussion of preventative/corrective maintenance and other technical issues regarding your coach's Tires, Wheels, Brakes, Steering and Suspensions and related components.

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  #1  
Old 01-11-2020
birds_first's Avatar
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Default Another Suspension Dump Light ????

I recently had to change out a WM 147P on the 95WB drive axle, and when we replaced it no more leaks on the new WM147P, but we had a leaking Bendix low pressure switch.

Went to the parts house with the part in hand (2 terminal) for a replacement and the counter guy must have given us a wrong replacement. There are several versions of the LP-3 low pressure switch similar to a 228750. Shouldn't it be a 228750, 60PSI normally closed switch. With what we have now the low air lamp functions property but the suspension Dump Light stays on. Does the 228750 support both the Low Air Pressure light & the Suspension Dump light on a 95WB. TIA
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Old 01-12-2020
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Kiwi3 Kiwi3 is offline
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Just capturing our conversation here. Because I'll forget.

On my 94WB the suspension dump pressure sensor is on the rear C-Channel on the street side (opposite the tag axle pressure regulator on the curbside), next to a pilot valve and a 3-way split that feeds the two airbags closest and one feeding something else.

According the the "dual air brake assembly" schematic it is suppose to be a 30 PSI cut out pressure switch (item number 101 on the schematic highlighted). A Bendex 276599 which is the right one.

And good news, the diagrams are for a 95.
Attached Files
File Type: pdf dual air brake assembly.pdf (1.99 MB, 18 views)
File Type: pdf dual air brake assembly parts list.pdf (2.18 MB, 9 views)
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Old 01-12-2020
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Quote:
Originally Posted by Kiwi3 View Post
Just capturing our conversation here. Because I'll forget.

On my 94WB the suspension dump pressure sensor is on the rear C-Channel on the street side (opposite the tag axle pressure regulator on the curbside), next to a pilot valve and a 3-way split that feeds the two airbags closest and one feeding something else.

According the the "dual air brake assembly" schematic it is suppose to be a 30 PSI cut out pressure switch (item number 101 on the schematic highlighted). A Bendex 276599 which is the right one.

And good news, the diagrams are for a 95.
Thanks Bruce; I'll crawl back under the bird to see if I can figure it out.
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John McGinnis,
95WB42MD S60, Mid-Entry "B-Rex"
88FC35 (SOLD)
Louisville, KY/Jeffersonville, IN
2000 Jeep Cherokee
Our Blog
Our Location
https://allwheelappraisals.com/
Email or call only - please do not send PM

johns.mcginnis @ hotmail.com
502-417-5681
.,=====o00
//___l__,\____\,___
l_--- \___l----[]lllllll[]
_(o)_)___(o)_)--o-)_
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  #4  
Old 01-12-2020
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Mallie Lennon Mallie Lennon is offline
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John, I am looking at the same drawing Bruce is. item #15 shows 1, 60psi sw
Item 101 shows 3, 30psi. They both show BB numbers. I believe they are the same except for pressure.
You will have to locate where yours is on the drawing.
It is Kurt Horvath Scan 447 & 448, may be elsewhere as Dual Air Brake Drawing.
Bruce, can you post a link to the drawings.
This may work
https://www.wanderlodgeownersgroup.c...es/scan447.pdf
https://www.wanderlodgeownersgroup.c...es/scan448.pdf
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Last edited by Mallie Lennon; 01-12-2020 at 10:20 PM. Reason: Add link
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  #5  
Old 01-12-2020
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Quote:
Originally Posted by Mallie Lennon View Post
Those are the same as I have. I just downloaded them a few years ago and renamed them to make it easier to find them again in Evernote.
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