SUPPRESSION AR-SOUND 2500855 - Caterpillar

Disassembly Procedure
Start By:
Remove the quick-drop valve. Refer to Disassembly and Assembly, "Quick-Drop Valve - Remove".
Illustration 1 g00627315
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove bolts (1) and cover (2) from the quick-drop valve.
Illustration 2 g00627317
Remove O-ring seal (3), stop (4), and shims (5) from cover (2).
Illustration 3 g00627336
Remove spring (6) from the valve housing. Remove the nonserviceable piston (not shown) from the valve housing. The valve housing is a nonserviceable part.
Illustration 4 g00627337
Remove bolts (7) and cover (8) from the quick-drop valve.
Illustration 5 g00627340
Remove plug (9), pin (10), and piston (11) from the quick-drop valve.
Illustration 6 g00627342
Remove valve stem (12) from the quick-drop valve. Valve stem (12) is a nonserviceable part. Note: The end of piston (11) fits in the Slot (A) on the valve stem (12). Piston (11) must be removed before valve stem (12) can be removed.
Illustration 7 g00627344
Remove plug (15) from valve stem (12).
Remove retaining ring (13) and orifice sleeve (14) from valve stem (12).