ELECTRONICS GP-IMPLEMENT 1485660 - Caterpillar

Illustration 1 g01277401
The Auger Hydraulic System in the OFF Position (1) Flushing valve for the piston motor (auger) (2) Crossover relief valves for the piston motor (auger) (3) Piston motor (auger) (4) Manifold (5) Displacement control spool (6) Control piston for the piston motor (auger) (7) Pressure override valve (8) Filter for the motor case drain (9) Crossover relief valves for the piston pump (auger) (10) Supply line from the tank (11) Case drain filter for the pump (12) Piston pump (auger) (13) Control piston for the piston pump (auger) (14) Control valve for the piston pump (auger) (15) Gear pump (charge) (16) Charge pump filter (17) Charge relief valve (18) Drain to the tank (CC) Pilot pressure (UU) Tank oil
Illustration 2 g01277408
The Auger Hydraulic System in the ON Position (1) Flushing valve for the piston motor (auger) (2) Crossover relief valves for the piston motor (auger) (3) Piston motor (auger) (4) Manifold (5) Displacement control spool (6) Control piston for the piston motor (auger) (7) Pressure override valve (8) Filter for the motor case drain (9) Crossover relief valves for the piston pump (auger) (10) Supply line from the tank (11) Case drain filter for the pump (12) Piston pump (auger) (13) Control piston for the piston pump (auger) (14) Control valve for the piston pump (auger) (15) Gear pump (charge) (16) Charge pump filter (17) Charge relief valve (18) Drain to the tank (AA) High pressure (BB) Reduced pressure (CC) Pilot pressure (UU) Tank oil
Illustration 3 g01313869
(15) Gear pump (charge) (12) Piston pump (auger)
Contamination to a closed loop hydraulic system can cause serious damage to the hydraulic motor and to the hydraulic pump.In order to prevent damage to the hydraulic motor and to the hydraulic pump, perform the flushing procedure whenever any hydraulic oil line or any hydraulic connections have been opened.
For the flushing procedure, refer to the Testing and Adjusting, "Auger Hydraulic System - Flush". Charge pump (15) is driven by piston pump (12) for the auger.
Illustration 4 g01313871
(17) Charge relief valve (16) Charge pump filterHydraulic oil from charge pump (15) flows to charge pump filter (16). Charge pump filter (16) is equipped with a bypass valve. When the differential pressure across the charge pump filter reaches the bypass relief pressure, oil flow is diverted around charge pump filter (16). Then, the hydraulic oil flows to charge relief valve (17). The hydraulic oil also flows to the control valve for piston pump (12) for the auger.
Illustration 5 g01277369
(19) Auger controlWhen the auger is turned ON, the transmission ECM sends a signal to pump control valve (14). Pump control valve (14) then sends oil to servo piston (13). Servo piston (13) then controls the amount of output for piston pump (12).
Illustration 6 g01313875
(3) Piston motor (auger) (20) Auger drivePiston pump (14) sends oil to flushing valve (1). Oil passes through flushing valve (1) to piston motor (3) for the auger. Piston motor (3) for the auger is bolted to auger drive (20). Return oil from piston motor (3) flows back to