QUICK COUPLERS Caterpillar

Disassembly Procedure

Start By:

1. Remove the hydraulic cylinder.

Show/hide table

Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed. Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.

Show/hide table

Illustration 1	g03693378

Show/hide table

Illustration 2	g03693337

Show/hide table

Illustration 3	g03693340

1. Remove bleeder screw (1). Remove hose fittings (3). Remove check valve (2).

2. Remove set screws (4). Remove head assembly (5) and rod assembly (6).

3. Remove nut (7). Remove piston assemblies (8) and (9) from rod (6). Remove head assembly (5).
   Show/hide table

   Illustration 4	g03693349

4. Remove O-ring seal (10) and seal (11) from piston assembly (8).
   Show/hide table

   Illustration 5	g03693361

5. Remove O-ring seal (12), seals (13) and (14) and seal (15) from piston assembly (9).