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Air dryer question
#10

The mounting brackets for the AD 9 have different spacing than the Brakemaster unit . I drilled holes in the lower mount to suit the original treaded holes in bulkhead . Welded a piece with correct hole spacing to the top mount . 
I replaced the steel braided hose from compressor to dryer with a longer one (# 12 , 33") to eliminate a section of pipe and fitting that was on old dryer .
However , I think the original will fit .
The line to governor is 1/4 npt , both units .
The discharge on original dryer is at the top , your AD 9 will be at the bottom , so the existing hose won't reach if like mine . The hose is DOT , 5/8 . I added a new section of hose using a DOT coupler . The AD 9 has 1/2 npt discharge , I used 90 degree DOT fitting to fit the hose . 
I would be interested to know if your model has any plumbing from the purge discharge . My Brakemaster had a copper tube plumbed to the purge and routed to the muffler . I do not believe this was original .
Let me know if you need more information. 
Chris

1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed 
Chris and Sharon Hand
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Messages In This Thread
Air dryer question - by Tfrazier - 02-06-2022, 08:35 PM
RE: Air dryer question - by bestgenman - 02-07-2022, 04:21 AM
RE: Air dryer question - by Richard - 02-07-2022, 04:52 AM
RE: Air dryer question - by Tf175 - 02-07-2022, 05:26 AM
RE: Air dryer question - by Tfrazier - 02-07-2022, 08:51 PM
RE: Air dryer question - by Tf175 - 02-08-2022, 04:48 AM
RE: Air dryer question - by Richard - 02-08-2022, 09:40 AM
RE: Air dryer question - by Tf175 - 02-08-2022, 10:23 AM
RE: Air dryer question - by Tfrazier - 02-17-2022, 09:08 PM
RE: Air dryer question - by Tf175 - 02-18-2022, 05:55 AM
RE: Air dryer question - by 77newell - 02-18-2022, 08:56 AM
RE: Air dryer question - by Tfrazier - 02-18-2022, 04:49 PM
RE: Air dryer question - by Tf175 - 02-19-2022, 05:47 AM
RE: Air dryer question - by Richard - 02-19-2022, 05:47 AM
RE: Air dryer question - by Tfrazier - 02-19-2022, 06:37 AM
RE: Air dryer question - by Tfrazier - 02-24-2022, 10:07 PM
RE: Air dryer question - by Tf175 - 02-25-2022, 01:14 PM
RE: Air dryer question - by johnkosir - 02-25-2022, 04:21 PM
RE: Air dryer question - by Tfrazier - 03-06-2022, 05:45 PM
RE: Air dryer question - by ccjohnson - 03-06-2022, 07:06 PM
RE: Air dryer question - by Tfrazier - 03-06-2022, 09:43 PM
RE: Air dryer question - by Tf175 - 03-07-2022, 06:03 AM
RE: Air dryer question - by Richard - 03-07-2022, 07:30 AM
RE: Air dryer question - by Tfrazier - 03-07-2022, 05:43 PM
RE: Air dryer question - by Tf175 - 03-08-2022, 05:53 AM
RE: Air dryer question - by Tfrazier - 03-08-2022, 08:37 AM
RE: Air dryer question - by Tf175 - 03-08-2022, 10:41 AM
RE: Air dryer question - by Tf175 - 03-08-2022, 10:54 AM
RE: Air dryer question - by Richard - 03-08-2022, 11:07 AM
RE: Air dryer question - by Tfrazier - 03-08-2022, 07:13 PM
RE: Air dryer question - by Fulltiming - 03-08-2022, 09:23 PM
RE: Air dryer question - by BusNit - 03-09-2022, 07:26 AM
RE: Air dryer question - by Tf175 - 03-09-2022, 07:52 AM
RE: Air dryer question - by Tfrazier - 03-09-2022, 11:28 AM
RE: Air dryer question - by Tfrazier - 03-09-2022, 12:07 PM
RE: Air dryer question - by smagown - 03-10-2022, 02:06 PM
RE: Air dryer question - by BusNit - 03-10-2022, 03:52 PM
RE: Air dryer question - by ccjohnson - 03-10-2022, 04:29 PM
RE: Air dryer question - by Tfrazier - 03-12-2022, 05:51 PM
RE: Air dryer question - by rheavn - 03-12-2022, 06:15 PM
RE: Air dryer question - by Richard - 03-13-2022, 05:34 AM
RE: Air dryer question - by Tfrazier - 03-20-2022, 07:51 PM
RE: Air dryer question - by Tf175 - 03-21-2022, 04:37 AM
RE: Air dryer question - by Richard - 03-21-2022, 06:10 AM
RE: Air dryer question - by Tfrazier - 03-23-2022, 09:18 AM
RE: Air dryer question - by Richard - 03-23-2022, 12:58 PM
RE: Air dryer question - by Tfrazier - 03-27-2022, 07:03 AM
RE: Air dryer question - by Tfrazier - 03-27-2022, 08:26 AM
RE: Air dryer question - by Tf175 - 03-27-2022, 08:42 AM
RE: Air dryer question - by Richard - 03-27-2022, 09:44 AM
RE: Air dryer question - by Fulltiming - 03-27-2022, 10:10 AM

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