MERCHANDISING 2874818 - Caterpillar

Disassembly Procedure
Start By:
Remove the brake accumulator charging valve. Refer to Disassembly and Assembly, "Accumulator Charging Valve (Brake) - Remove". Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
Illustration 1 g01094896
Illustration 2 g01094899
Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Remove plug (1). Remove O-ring seal (17) from plug (1).
Remove spring (16), poppet (15), spool (14), poppet (12) and spring (11).
Remove two O-ring seals (13) from spool (14). Note: Before loosening nut (2), accurately measure and record the distance from the end of screw (3) to the end of the housing for assembly purposes.
Remove nut (2) and screw (3). Remove O-ring seal (10) from screw (3).
Remove spring (9), poppet (8), plunger (7), O-ring seal (6), washer (5) and two spacers (4).
Illustration 3 g01094900
Illustration 4 g01094902
Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Remove plug (18). Remove O-ring seal (32) from plug (18).
Remove spring (31), spring (30), spring seat (29) and spool (28).
Remove O-ring seal (27) from spool (28).
Remove plug (19). Remove O-ring seal (26) from plug (19).
Remove spring (25), plunger (24), ball (23), piston (22) and spool (21).
Remove two O-ring seals (20) from spool (21).
Illustration 5 g01094903
Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Remove plug (33). Remove O-ring seal (34) from plug (33). Note: Before removing set screw (35), accurately measure and record the distance from the end of set screw (35) to the end of the housing for assembly purposes.
Remove set screw (35), spring (36), plunger (37) and ball (38).
Remove plug (39). Remove O-ring seal (40) from plug (39).
Illustration 6 g01094904
Remove plug (41). Remove the O-ring seal from plug (41).