COVER AS 2464614 - Caterpillar

Illustration 1 g03793783
(1) Tilt Cylinder
(2) Secondary Display
(3) Keypad Module
(4) Joystick
(5) Implement ECM
(6) Machine ECM
(7) Hydraulic Tank
(8) Engine
(9) Hystat Pump
(10) Implement Pump
(11) Steering Pump
(12) Brake, Fan, Charge Pump
(13) Lube Pump
(14) Quick Coupler Valve
(15) Lift Cylinders
(16) Implement Valve
(17) Quick Coupler (if equipped)
(18) Pilot Accumulator
(19) Ride Control Accumulators (if equipped)
(20) Ride Control Valve (if equipped) The hydraulic system consists of many components, the first component is a variable displacement piston pump (9) for the hydrostatic drive system. The variable displacement piston pump (9) is splined into a coupling that is connected to the engine flywheel. The hydrostatic pump (9) supplies high pressure hydraulic oil to the hystat motors.The implement pump (10) is splined to the hydrostatic pump. The implement pump provides oil flow to the lift, tilt, third, and fourth functions. Oil flow is controlled by inputs from the operator, through :
Joystick (4)
ECM (5)
ECM (6)
Quick coupler valve (14)
Implement valve (16)
Differential lock valve (938 only)Brake, Fan, and Charge pump (12) provides charge oil to the brake, fan, and hydrostatic drive systems. The charge pump is splined to the steering pump.The ride control feature (if equipped) is activated from keypad module (3). The ride control valve (20) maintains pressure to ride control accumulators (19). Ride control accumulator pressure balancing is constantly active. The pressure in the accumulator acts like a shock absorber for the lift cylinder.The quick coupler (if equipped) is activated by a switch on the lower panel in the operator station. The ECM sends a signal to quick coupler valve (14) which allows the operator to engage or disengage work tools.