EDGE AS-CUTTING 6W5520 - Caterpillar

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(1) Accumulator for the ride control, (2) Orifice, (3) Shut off valve, (4) Lift cylinders, (5) Lines from the lift control valve, (6) Orifice, (7) Pressure switch for the ride control, (8) Pilot operated check valve, (9) Electronic Control Module (ECM) (machines with an autoshift transmission) or Connector (machines with a direct drive transmission), (10) Ride control switch, (11) Line to the tank, (12) Supply line, (13) Ride control relay and (14) Solenoid valveTravel at high speeds over rough terrain causes bucket movement. The system for ride control acts as a shock absorber by absorbing forces from the bucket. Absorbing the forces from the bucket stabilizes the entire machine.Note: In some countries that require lock valves for agricultural and material handling applications, the ride control must be turned to the OFF position. The ride control must be turned to the OFF position in order for the lock valves to function properly. Lock valves and ride control cannot function at the same time.
Illustration 2 g00794777
(4) Lift cylinder, (1) Accumulator, (14) Solenoid valve and (7) Pressure switch
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(1) Accumulator, (14) Solenoid valve and (7) Pressure switch
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(10) Switch for the ride controlThe ride control switch (10) controls the solenoid in solenoid valve (14). The ride control switch will have three positions if your machine is equipped with a Autoshift transmission. The three positions are ON, OFF, and AUTO. The ride control switch will have two positions if your machine is equipped with a Standard transmission. The two positions are ON and OFF.Turn ride control switch (10) to the OFF position. The functions of the machine are identical to a machine without ride control. When the ride control is turned off, solenoid (14) de-energizes and check valve (8) blocks the passage from the rod ends of the lift cylinders to the tank. The shutoff valve (3) moves down and blocks oil flow. The orifice (6) dampens the closing of the check valve (8) and the shifting of the shut off valve (3). This also forces oil to flow through orifice (2). Orifice (2) is in the passage from the head end of lift cylinders (4) to the ride control accumulator (1). The orifice (2) in the line to the accumulator prevents the rapid loss of oil which is stored in accumulator (1) when the loader arms are lowered. Orifice (2) also allows the accumulator to be charged without affecting machine performance when the loader arms are lifted.Turn ride control switch (10) to the ON position. The lift cylinders are allowed to move up and down when the ride control system is in the ON position. When the ride control is activated, solenoid valve (14) shifts. Pump supply oil from passage (12) moves shutoff valve (3) upward. Pump supply oil also unseats check valve (8). Any downward force that is placed on the lift arms is transferred to the hydraulic fluid at the head end of lift cylinders (4). As the lift cylinders retract, oil is displaced from the head end of