Screen Removal Bargman L-300 Door Handle brakes Satellite Fuel Tank Fire Extinguishers Roof Antenna Tech Talk Forum Shortcut Motor Oil Window Generators headlights batteries Radiator AC Unit Grab Handle Wiper Blades Wiper Blades Door Locks Door Locks Door Locks Door Locks Rims Front Shocks Rear Shocks Front Tires Oil Filter Steps Roof Vent Awning Propane Tank Mirror Info Clearance Lights Clearance Lights Clearance Lights Clearance Lights Clearance Lights Spartan Chassis Gillig Chassis Freightliner Chassis P-32 Chassis MCC Chassis
    Forums    Tech Talk    Air over hydraulic brakes
Go to...
Start A New Topic
Search
Notify
Tools
Reply To This Topic
  
Air over hydraulic brakes
 Login now/Join our community
 
Jim and Tere
Supporting Member of Barthmobile.com 6/12
Formally known as "Humbojb"
Picture of Jim and Tere
posted
I'm not familiar with this system. Could somebody give me a quick primer on how it works?
Jim


Jim and TereJim and Tere

1985 Regal
29' Chevy 454 P32
8411 3172 29FP3B
Gear Vendor 6 Speed Tranny
 
Posts: 3696 | Location: madisonville tn usa | Member Since: 02-19-2005Reply With QuoteReport This Post
Rusty
Supporting Member of Barthmobile.com 2/16
Captain Doom
Picture of Rusty
posted Hide Post
It's relatively simple(And this is the abbreviated version). It's the converse of power brakes on a car, which uses a vacuum to assist. The vacuum allows atmospheric pressure to add to pedal pressure. Air-over-hydraulic just uses air pressure (higher than atmospheric) from the engine compressor to provide the assist.


Rusty

MilSpec AMG 6.5L TD 230HP; built-to-order by Peninsular Engines: Hi-pop injectors, gear-driven camshaft, non-waste-gated, high-output turbo, 18:1 pistons. Fuel economy increased by 15-20%, power, WOW!"StaRV II"

'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP

Nelson and Chester, not-spoiled Golden Retrievers

Sometimes I think we're alone in the universe, and sometimes I think we're not.
In either case the idea is quite staggering. - Arthur C. Clarke

It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields
 
Posts: 7734 | Location: Brooker, FL, USA | Member Since: 09-08-2005Reply With QuoteReport This Post
Jim and Tere
Supporting Member of Barthmobile.com 6/12
Formally known as "Humbojb"
Picture of Jim and Tere
posted Hide Post
You have had some problems with some kind of a pump, Rusty. Did it have anything to do with the brakes?


Jim and TereJim and Tere

1985 Regal
29' Chevy 454 P32
8411 3172 29FP3B
Gear Vendor 6 Speed Tranny
 
Posts: 3696 | Location: madisonville tn usa | Member Since: 02-19-2005Reply With QuoteReport This Post
Rusty
Supporting Member of Barthmobile.com 2/16
Captain Doom
Picture of Rusty
posted Hide Post
Yes, but my system (being slaved to a GM-based engine) is hydraulic over hydraulic, GM's abominable Hydroboost. The power steering pump also supplies pressure for brake boost.


Rusty

MilSpec AMG 6.5L TD 230HP; built-to-order by Peninsular Engines: Hi-pop injectors, gear-driven camshaft, non-waste-gated, high-output turbo, 18:1 pistons. Fuel economy increased by 15-20%, power, WOW!"StaRV II"

'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP

Nelson and Chester, not-spoiled Golden Retrievers

Sometimes I think we're alone in the universe, and sometimes I think we're not.
In either case the idea is quite staggering. - Arthur C. Clarke

It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields
 
Posts: 7734 | Location: Brooker, FL, USA | Member Since: 09-08-2005Reply With QuoteReport This Post
  Powered by Social Strata  
 

    Forums    Tech Talk    Air over hydraulic brakes

This website is dedicated to the Barth Custom Coach, their owners and those who admire this American made, quality crafted, motor coach.
We are committed to the history, preservation and restoration of the Barth Custom Coach.