1. Technical Bulletin Bulletin No PRO 08 03 Effective Date 7 20 77 Page 1 of 1 Subject AD 2 Air Dryer Exhaust Extension This is to inform you of the availability of AD 2 Air Dryers with exhaust 292346 illustrated below which permits the use of 1 I D hose to pipe the exhaust of the AD 2 to a Suitable point when required This cover is included on end covers complete 289011 12V and 289012 24V which in turn are used on red oxide Air Dryers assembly piece number 289007 12V and 289008 24V respectively