AIR DRYER (613BSNS1, 613BSS1)
Using a 34 in. socket wrench, remove the oil filter (6),
the desiccant cartridge (7) and desiccant sealing plate
(8) as an assembly.
Remove the nut (9) and desiccant sealing plate (8).
Remove the O-ring seals (13).
Remove the clip (10) and ball check valve (II1)
under the clip.
Clean the desiccant plate in a solvent. Make sure the
purge valve orifice (12) and check valve seat are
open and clean.