416E Backhoe Loader Hydraulic and Steering System Caterpillar


Ride Control System

Usage:

416E BWC



Illustration 1g01212764

(1) Accumulator

(2) Orifice

(3) Solenoid valve

(4) Check valve

(5) Lift cylinders

(6) Oil lines from the control valve

(7) Check valve

(8) Pressure switch for the ride control

(9) solenoid valve

(10) Electronic control module on machines with an autoshift transmission

(11) Ride control switch

(12) Ride control relay

(13) Ride control solenoid valve and mounting group

Travel 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 2g01294223

(1) Accumulator

(13) Ride control solenoid valve and mounting group




Illustration 3g01230057

(11) Ride control switch

The ride control switch (11) controls the solenoid in solenoid valve (3) and solenoid valve (9). 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 (11) 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 valve (3) and solenoid valve (9) de-energize. The check valve (7) blocks the flow of oil from the rod ends of the lift cylinders to the tank. The check valve (4) blocks the flow of oil from the accumulator (1) to the head end of the lift cylinders (5). This also forces oil to flow through orifice (2). Orifice (2) is in the passage from the head end of lift cylinders (5) 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 (11) 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 (3) and solenoid valve (9 ) shift. Any downward force that is placed on the lift arms is transferred to the hydraulic fluid at the head end of lift cylinders (5). As the lift cylinders retract, oil is displaced from the head end of the cylinders and flows through solenoid valve (3) and into accumulator (1). Oil is then drawn from the tank into the rod ends of the cylinders. Accumulator (1) acts as a shock absorber when the cylinders retract. This provides a smoother ride. As lift cylinders (5) extend, oil is displaced from the rod ends of the cylinders that are opened to the tank. The oil which is stored in the accumulator flows into the head ends of the cylinders.

Because the hydraulic oil cannot be compressed, the forces are passed through the hydraulic lines to accumulator (1). The accumulator piston separates the hydraulic oil from the nitrogen gas. Nitrogen gas compresses. The nitrogen gas resembles a spring. The force in the fluid is transmitted to the piston and the force is then transmitted to the nitrogen gas. As the nitrogen gas compresses, the nitrogen gas allows the volume of fluid that is displaced from the lift cylinders to minimize the shock to the machine components.

Pressure switch (8) senses the pressure in the line to the rod end of the loader lift cylinder. When the pressure in the rod end of the loader lift cylinder is less than the actuation pressure of pressure switch (8), the switch closes. Pressure switch (8) overrides the switch for ride control (11). The pressure switch will not allow the ride control to come on, if down pressure of the loader is sensed. This prevents the machine from dropping, when the machine is up on the front bucket, and when ride control switch (11) is turned on.

Caterpillar Information System:

2009/02/16 Disposable Paper Air Filters Require Protection {1051, 1054}
Work Tool (Custom) <B>338-0312</B> Log and Lumber Fork Maintenance Interval Schedule
795F AC and 795F AC XQ Off-Highway Trucks Air Filter Element (Inverter Cabinet) - Clean/Replace - Metal Sand Filters
143H and 163H Motor Graders All Wheel Drive All Wheel Drive System
416E, 420E and 430E Backhoe Loaders Power Train Transmission (Direct Drive) - Install
CP44 and CS44 Vibratory Soil Compactors Window Washer Reservoir - Fill
416E, 420E and 430E Backhoe Loaders Power Train Transmission (Direct Drive) - Remove
3408E and 3412E Engines for the 844 Wheel Dozer and for 988F Series II and 990 Series II Wheel Loaders Diagnostic Trouble Codes
CP44 and CS44 Vibratory Soil Compactors Wheel Nuts - Tighten
120K and 120K Series 2 Motor Graders Engine Supplement Radiator Guard and Support, Aftercooler, and Radiator - Install
CP44 and CS44 Vibratory Soil Compactors Vibratory Support Oil Sample - Obtain
CP44 and CS44 Vibratory Soil Compactors Vibratory Support Oil Level - Check
584 and 584HD Forwarders Machine Preheater Heater System Electrical Schematic
CP44 and CS44 Vibratory Soil Compactors Steering Column Spline (HMU Steering) - Lubricate
120K and 120K Series 2 Motor Graders Machine Systems Fuel Tank - Remove
120K and 120K Series 2 Motor Graders Machine Systems Fuel Tank - Install
CB54, CB54 XW and CB64 Vibratory Compactors Propel System Piston Pump (Propel) (Swashplate Angle) - Check
Installation of the 330-0824 Control Arrangement (Variable Pitch Fan) (Kit){1356} Installation of the 330-0824 Control Arrangement (Variable Pitch Fan) (Kit){1356}
CP44 and CS44 Vibratory Soil Compactors Parking Brake - Check
584 and 584HD Forwarders Machine Preheater Operational Flow Chart
416E Backhoe Loader Hydraulic and Steering System Ride Control Accumulator - Test and Charge
CP44 and CS44 Vibratory Soil Compactors Fuel System - Prime
2009/02/02 A New Rocker Arm Assembly is Available {1123}
795F AC and 795F AC XQ Off-Highway Truck Steering System Solenoid Valve and Manifold (Blower Fan, Final Drive Lubrication, Steering)
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.