CARRIER 6S3024 - Caterpillar

Illustration 1. Location of new components in 7C-4013 Muffler Group. Modification Procedure
The former 4W-0532 Muffler Assembly and 8W-5561 Tube Assembly can be modified to work as a slip-fit muffler using the following procedure.
1. Cut through outer shell (12) and insulation (13) 51 mm (2.0") back the outer-most end of V-flange surface (14). Do not cut through inner pipe (15). Remove the outer shell (12) and insulation (13) from inner pipe (15). See Illustration 2.
Illustration 2. Dimensions for modifications to 4W-0532 Muffler Assembly. Muffler outer shell (12). Insulation (13). Location of outer-most end of V-flange surface (14). Inner pipe (15). 2. Cut eight to ten slots (16) around muffler inner pipe (15). The dimensions for the slots are 38 × 4.6 mm (1.5 × .18 in) with a 2.3 mm (.09 in) radius.3. Fabricate an extension (17) made from 3.2 mm (.12 in) thick weldable steel. The fabricated extension (pipe) should be 76 mm (2.9 in) wide with a 219 mm (8.6 in) outside diameter. See Illustration 3.
Illustration 3. Dimensions for fabricated extension. Fabricated Extension (17). 8W-5561 Tube Assembly (18). V-flange (19).4. Weld fabricated extension (17) to the end of 8W-5561 Tube Assembly (18). V-flange (19) may need to be removed from the 8W-5561 Tube Assembly.5. Slide the modified muffler and 4W-1814 Clamp over the fabricated extension on the mating tube assembly and clamp in place.6. Install mounting bracket.