Usage:
784B (5RK) Tractor;
785 (8GB),
785B (6HK),
789 (9ZC),
789B (7EK),
793 (3SJ),
793B (1HL) Trucks
- SUPPLEMENT: 01/16/95
Service Magazine; November 21, 1994; Page 5; "New Air Dryer Check Valve Assembly Used".
This article also applies to the 994 Wheel Loaders. Please add 944 (9YF) Wheel Loaders to the list of applicable models shown with the article.
--------------- END SUPPLEMENT ---------------
Description of Change: A new check valve assembly is used on the air dryer group. The new check valve assembly is serviced as a unit. The former check valve assembly has serviceable parts.
Adaptable To: The new 118-5635 Check Valve Assembly is a direct replacement for the former check valve assembly located in the 2G-2159 Air Dryer Group and is adaptable to all earlier machines.
The former check valve assembly is a two piece valve that can be disassembled and serviced using 2G-7181 Check Valve Kit. The new check valve is a one piece design that must be replaced as a complete unit with 118-5635 Check Valve Assembly. Compare Illustration 1 and 2 to determine the proper service procedure.
Illustration 1. New 118-5635 Check Valve Assembly
Illustration 2. Former Check Valve Assembly