SENSOR GP- 5589521 - Caterpillar

Illustration 1 g00597602
(1) Boom control valve. (2) Boom cylinder. (3) Bank valve. (4) Pump. (5) Manifold. (A) Oil that is returning to the hydraulic tank. (B) Pilot oil for lowering the boom. (C) Pilot oil for raising the boom. (D) Oil that is supplied to the pump by the hydraulic tank. (E) Oil that is returned to the tank by the manifold. (F) Oil that is supplied to the pilot valve (joysticks).Bucket Dump
When the pilot valve (joystick) is moved to the left, pilot oil (C) shifts the spool of the bucket control valve (2) upward. Oil is routed from the gear pump (4) to the bank valve (3) by the manifold (5). The gear pump receives oil from the hydraulic tank through the hydraulic line (D). The oil from the main pump flows to the rod end of the bucket cylinder (1) through the bucket control valve. The retracting of the bucket cylinder causes the bucket to open.Refer to the Systems Operation, "Bank Valve" for more information on the bank valve and the boom control valve. Refer to the Systems Operation, "Pilot Valve (Joystick)" for more information on the pilot valve (joystick).Bucket Close
When the pilot valve (joystick) is moved to the left, pilot oil (B) shifts the spool of the bucket control valve (2) downward. Oil is routed from the gear pump (4) to the bank valve (3) by the manifold (5). The gear pump receives oil from the hydraulic tank through the hydraulic line (D). The oil from the main pump flows to the head end of the bucket cylinder (1) through the bucket control valve. The extending of the bucket cylinder causes the bucket to close.Refer to the Systems Operation, "Bank Valve" for more information on the bank valve and the boom control valve. Refer to the Systems Operation, "Pilot Valve (Joystick)" for more information on the pilot valve (joystick).