KIT- 5462043 - Caterpillar

Hydraulic Circuit
Illustration 1 g03375898
(1) Hydraulic cylinders (2) Relief valve (3) Relief valve (4) Swivel (5) Rotation Motor (6) Orifice (7) Check valveThe hydraulic system for the Clam Shell Grapple is divided into two separate circuits. One circuit is used to rotate the work tool and the other circuit is used to operate the shell assemblies.
The hydraulic circuit for the operation of the shell assemblies.The main components of the clam shell grapple circuit consist of the swivel (4) and cylinders (1) .
The hydraulic circuit for the rotation of the work tool.The main components of the rotate circuit consist of the following components: swivel (4), relief valves (2) and (3), rotation motor (5), orifices (6) and check valves (7) .Shell Circuit
Swivel (4) is the center of the rotator assembly. The swivel provides the necessary transfer of hydraulic oil to the hydraulic cylinders in the Clam Shell Grapple. This transfer of oil allows the Clam Shell Grapple to rotate 360 degrees without damaging the hoses to the cylinders.Double acting cylinders (1) provide the necessary force in order to operate the shells of the work tool effectively. The hydraulic circuit for the cylinders is independent from the circuit for rotation.Close the Shell
Illustration 2 g03375979
(1) Hydraulic cylinders (4) Swivel (8) Line from the main pumps (9) Line to the hydraulic tankIllustration 2 demonstrates the operation of the work tool when the shells are closing. Oil flows from the host machine to line (8). The oil flows through swivel (4). The oil then flows to the head end of cylinders (1). The oil pressure that is felt at the piston in the cylinder causes the cylinder to extend. This action closes the shells.Oil from the rod end of the cylinders returns to the hydraulic tank through line (9) .Open the Shell
Illustration 3 g03376180
(1) Hydraulic cylinders (4) Swivel (8) Line to the hydraulic tank (9) Line from the main pumpsIllustration 3 demonstrates the operation of the work tool when the shells are opening. Oil flows from the host machine to line (9). The oil flows through swivel (4). The oil then flows to the rod end of cylinders (1). The oil pressure that is felt at the piston in the cylinder causes the cylinder to retract. This action opens the shells.Oil from the head end of the cylinders returns to the hydraulic tank through line (8) .Rotate Circuit for Clockwise Rotation
Illustration 4 g03376186
(2) Relief valves (3) Relief valves (4) Swivel (5) Rotation motor (6) Orifice (7) Check valve (10) Line from the main pump (11) Line to the hydraulic tankHydraulic oil is supplied through line (10) to the grapple rotate circuit by the medium pressure pump that is located on the host machine. The auxiliary control valve located on the host machine determines the direction that rotation motor (5) turns by diverting supply oil to either side of the rotation motor. Return oil is sent back to the hydraulic tank through line (11) .Relief valves (2) and (3) prevent cavitation in the grapple rotate motor. The relief