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Old 01-10-2016, 04:29 PM   #1
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How to bleed brakes with a tag axle

I have a 97 Fleetwood Southwind with a tag axle bled the front wheels and the rear wheels but can't get nothing out of the tag axle is there another reservoir somewhere and where can I find parts for the tag axle it is a Dexter system dexter system need a brake hardware kit

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Old 01-10-2016, 04:52 PM   #2
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I think you need to look for a separate master cylinder on a big vacuum booster.

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Old 01-10-2016, 05:02 PM   #3
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Most of the Fleetwood tag axle's had a separate master cylinder. Most were on the right side on the outside of the frame. Many of the ones I checked were empty.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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Old 01-10-2016, 09:41 PM   #4
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Parts for your tag NAPA can get if they don't have them.
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Old 01-11-2016, 07:03 PM   #5
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Here's a previous post about tag axle brakes.

Hydraulic Tag Axle Brake Information
Chuck & Teri, 1999 35 ft. Dolphin 5350, F53 Chassis with tag axle, Chassis build date 1/99 in Mexico, Banks System, Trans Command, Air Lift Air Bags on rear, Koni Shocks, Blue OX TruCenter, TigerTrak track bars front and rear, Roadmaster 1-3/4" rear auxiliary sway bar, 2013 VW Passat TDI SEL Premium, 1994 36 ft. Avion 5th Wheel. FMCA #F430129
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Old 01-11-2016, 08:03 PM   #6
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Some gasser tag axles actually used electric brakes like on a travel trailer axle.
If your tag brakes are hydraulic, look for the vacuum actuator and master cylinder bolted to the frame cross member between the main and tag axles.
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Old 01-12-2016, 11:12 AM   #7
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My 96 RAVEN has a tag axle, originally the tag brake was vacuum over hydraulic. The TAG is a DEXTER axle with MORIDE suspension and Dexter brakes. This was a common configuration for MHs of that era.
The TAG brake was activated by a line T'ed off the from the drive axle brake to a controller and brake assembly made by MASTER BRAKE. It had a vacuum line from the engine to the controller.
The controller released vacuum from one side of a brake booster and activated a master cylinder for the tag brakes.
The master cylinder and booster was located dead center behind the differential and slightly ahead of the actual TAG axle.
If yours is the same, to bleed it you will first need to get at that master cylinder and make sure it is full, then with the engine running you need to have some one work the brake pedal like a normal bleeding process.
Needles to say mine did not work and MASTER BRAKE has long gone out of business.
I threw a lot of money and time at mine trying to make it work with no success.
With the advise and support from DEXTER I was able to convert my TAG to Electric over hydraulic.
I wish you luck

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brake, brakes

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