NUT 0847213 - Caterpillar

Front Flow Divider Valve
Illustration 1 g01266793
View From Under the Machine (Belly Guard Removed) (1) Front flow divider valve (2) Front flow divider solenoidFront flow divider solenoid (2) is mounted to front flow divider valve (1). This valve is located next to the left frame rail which is under the machine.Front flow divider valve (1) ensures that equal oil flow is sent to each front propel motor. Equal flow through the propel motors results in equal wheel speed. This is true regardless of the underfoot conditions.The machine ECM controls flow divider solenoid (2). The machine ECM will discontinue the signal to the flow divider solenoid if propel speed reaches approximately 32 m/min (105 ft/min). This is done in order to reduce heat generation in the system at high flow rates. The machine ECM will also discontinue the signal to the flow divider solenoid when the steering angle reaches approximately 13 degrees. This is done in order to prevent one front wheel from contacting the other front wheel during tight turns.The ports on the flow valve are marked for purposes of identification. The following describes each port:
Port "P1" is connected to port "B" on the front propel pump and port "B" on the rear propel pump.
Port "CHG" is connected to a charge pressure port on the front propel pump.
Port "A" is connected to port "A" on the left front propel motor.
Port "B" is connected to port "B" on the right front propel motor.
Port "T" is connected to the hydraulic tank.Rear Flow Divider Valve
Illustration 2 g01266795
View of Rear of Machine (Above Mixing Chamber) (3) Rear flow divider valve (4) Rear flow divider solenoidRear flow divider solenoid (4) is mounted to rear flow divider valve (3). This valve is located in the center of the machine which is above the mixing chamber.Rear flow divider valve (3) ensures that equal oil flow is sent to each rear propel motor. Equal flow through the propel motors results in equal wheel speed. This is true regardless of the underfoot conditions.The machine ECM controls flow divider solenoid (4). The machine ECM will discontinue the signal to the flow divider solenoid if propel speed reaches approximately 32 m/min (105 ft/min). This is done in order to reduce heat generation in the system at high flow rates. The machine ECM will also discontinue the signal to the flow divider solenoid when the steering angle reaches approximately 13 degrees. This is done in order to prevent one rear wheel from contacting the other rear wheel during tight turns.The ports on the flow divider valve are marked for the purpose of identification. The following describes each port:
Port "P1" is connected to port "B" on the front propel pump and port "B" on the rear propel pump.
Port "CHG" is connected to a charge pressure port on the rear propel pump.
Port "A" is connected to port "B" on the right rear propel motor.
Port "B" is connected to port "B" on the left rear propel motor.
Port "T" is connected to the hydraulic tank.