BENDIX TCH-005-012 User's Manual
Contents
1. HEX HEAD ON WORM SHAFT ROUND HEAD ON WORM SHAFT OLD VERSION IMPROVED ASA 2 ASA 22. Technical Bulletin Bulletin No PRO 05 12 Effective Date 6 30 86 Page 1 of 1 Subject ASA 2 Durability and Performance Improvements We are pleased to announce that all ASA 2 automatic slack adjusters manufactured on and after April 7 1986 DO786F and up will incorporate several improvements designed to increase durability and performance 1 The designed shoe to drum clearance has been reduced to provide a closer adjustment and increased actuator stroke reserve The ASA 2 will continue to use the more reliable concept of shoe to drum clearance sensing rather than sensing actuator stroke 2 Changes in the design of the adjusting linkage assembly have been made to increase its durability and reduce the possibility of breakage 3 Improvements have also been made to the internal anti reverse clutch mechanism which will provide added durability ASA 2 assembly part numbers remain unchanged refer to catalog pages 05 A 17 to 05 A 19 The improved version of the ASA 2 is totally interchangeable with the previous version Mixing of old and new versions on the same axle is acceptable The improved adjusting linkage assembly will carry the same part number as the older version and is completely interchangeable Other detail and subassembly replacement part numbers remain unchanged also and may be used on both old and new versions of the ASA 2 assemblies In addition to using the date code the improved ASA 2 may also be visually identified
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