LIFT GP-BLADE 4T7105 - Caterpillar

Secondary steering valve (10) is mounted on the top left of the transfer gear housing.Electrohydraulic Steering (Optional)
Illustration 15 g03709960
Components that make up the steering electrohydraulic system
(4) Steering control valve
(5) Right steering cylinders
(6) Steering pump
(9) Hydraulic tank
(16) Implement ECM
(17) Power train ECM
(18) Left Hand Steering Control
(19) Steering pilot accumulator
(20) Brake/Fan combination valve
(EC) Electrical components
(HC) Hydraulic system components
Illustration 16 g03710492
(4) Steering control valve
(5) Right steering cylinders
(6) Steering pump
(7) Secondary steering pump
(8) Secondary steering relay
(9) Hydraulic tank
(10) Secondary steering diverter valve
(11) Steering pressure sensor
(12) Secondary steering pressure sensor
(13) Left steering cylinder
(16) Transmission ECM
(17) Implement ECM
(18) Left Hand Steering Control
(19) Steering pilot accumulator
(20) Brake/Fan combination valve
(21) Brake/Fan pump Power Train ECM and Implement ECM
Illustration 17 g03711296The transmission ECM (16) and implement ECM (17) are located on the back of the cab near the hydraulic tank.Pilot Steering Control "STIC"
Illustration 18 g03711302The Left-hand steering control (STIC) (18) is located on the control console on the left side of the operator.Steering Pump
Illustration 19 g03711305Steering pump (6) is mounted to the implement pump on the right side of the machine.Brake/Fan/Pilot Pump
Illustration 20 g03711308Brake/Fan/Pilot pump (21) is mounted to the front gear train of the engine below the fuel filters on the right side of the machine.Brake and Fan Combination Valve (Primary Steering Pilot Oil)
Illustration 21 g03711608The brake/fan combination valve (20) is located in the service center on the right side of the machine.Pressure reducing valve (20a) provides the pilot oil supply to the pilot steering solenoid and the primary steering solenoids in the steering control valve.Pressure reducing valve (20b) provides the pilot oil supply to the secondary steering solenoids in the steering control valve.Steering Pilot Oil Accumulator
Illustration 22 g03711609Steering pilot accumulator (7) is located in the service bay on the right side of the machine. The accumulator stores pilot supply oil during normal operation. The accumulator provides a temporary supply of pilot oil if a loss of pump flow occurs.Steering Control Valve and Components
Illustration 23 g03711611The steering control valve (4) is mounted to the transmission transfer gears near the articulation hitch. The steering control valve directs supply oil from the steering pump to the steering cylinders.
Illustration 24 g03566704
Steering control valve and components
(5) Steering control valve
(5a) Back-up relief valve
(5b) Crossover relief and makeup valve
(5c) Left secondary steering solenoid
(5d) Right secondary steering solenoid
(5e) Right primary steering solenoid
(5f) Steering pilot ON/OFF solenoid
(5g) Left primary steering solenoid
(5h) Crossover relief and makeup valve
(5j) Steering control spool position sensor The above listed components in Illustration 1 are part of the steering control valve.