new to vacume brakes any help in getting system to work ie wiring & if my belt driven vacume pump will handle the demands or if i need a auxillary pump
Sounds like your running a compression ignition engine (diesel). Vacuum brakes don't use much air to operate, and a reservoir is built into the trailer. Electrically, they operate like other brakes. Some of the newer fancy conrollers that check for brake magnet integrity will not be happy with this old Midland-Ross systsem. I still use it and am fine with it. You'll need a check valve in the line and, unless the PO gave it to you, you'll need a set of airline quick connectors to uncouple. Some folks switch over the vacuum over hydralic unt for an electric over hydralic unit. Research the threads on this topic.
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"Not all who are lost are wondering" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
I had a set of them on my 77. Work great when they work. I put a lot of miles on and had a number of failures on the road. It is hard to find people and parts on the road to fix them when they fail. Last straw was when the caliper carriers started to have fatique failures where the slide pins are welded into the stamped metal brackets. Not reliable way to fix that, so I changed over to electrics. Took one afternoon and $350 in parts.
We have an airstream that has been sitting for 12 years. I towed it for the first time last weekend, and the brakes did not work. My controller on the tow vehicle may be the problem not sure.It has two lights neither light up at this time. Repacked bearings and lubed and checked all four brakes before towing. I definately have a vacuum at the trailer when I disconnect it hisses for a while. I'm trying to get our trailer back on the road low budget at this time, if anyone knows someone in southeastern VA (Martinsville) or Raleigh/Durham area that could help me T/S the brakes I'd be greatly appreciated. One option may be this electric pump over vacuum, could someone post a link to this info?? Thanks in advance to you all
new to vacume brakes any help in getting system to work ie wiring & if my belt driven vacume pump will handle the demands or if i need a auxillary pump
We are the only company that has most of the repair parts for the original disc brake system.
I would also suggest that you check all the exterior gaskets, windows, door, access compartments, ceiling vents, and especially the sewer vent pipe cover gaskets. Would also be wise to check the clearance lights for a tight leak proof mounting.
When I took everything apart to repack the wheel bearings all brake parts moved. Nothing is frozen up. Also the axles remarkable are in great shape. Did all the measurents to check them out and there fine. Its just the brakes applying not sure if its the TV or the trailer system. I've been told that we might be able to change the vacuum system cannister on the front of the airstream to an electric system keeping the same brakes???
When I took everything apart to repack the wheel bearings all brake parts moved. Nothing is frozen up. Also the axles remarkable are in great shape. Did all the measurents to check them out and there fine. Its just the brakes applying not sure if its the TV or the trailer system. I've been told that we might be able to change the vacuum system cannister on the front of the airstream to an electric system keeping the same brakes???
You can upgrade the actuator to a new style, that does not require a source of vacuum.
You must add a couple of wires, which is easy enough since a manual comes with the new Actibrake actuator.
You can also mount the new actuator under the front lounge, or in an access compartment.
The key parts that you should carefully check are the dust seals for the pistons, the caliper bushings, the clevis pins, and the pads.
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