BCM Community

Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: Paul on March 10, 2015, 04:11:30 AM

Title: Understanding the DD-3 brake inversion valve
Post by: Paul on March 10, 2015, 04:11:30 AM


More from MCI


http://www.mcicoach.com/fyiFromMci/maintMatters/0315.htm (http://www.mcicoach.com/fyiFromMci/maintMatters/0315.htm)
Title: Re: Understanding the DD-3 brake inversion valve
Post by: bevans6 on March 10, 2015, 07:13:05 AM
I would like to find out when MCI went to a secondary air tank for the front brakes on DD-3 equipped buses, and had the second inversion valve.  Certainly my 1980 did not have it, and I think they went to spring brakes around 1990 or so.  Be good to understand that change period.

Brian
Title: Re: Understanding the DD-3 brake inversion valve
Post by: luvrbus on March 10, 2015, 07:39:33 AM
The 1995 MCI still had DD-3 I am going to change to spring later this year