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Speed Level Seres - Servce & Parts Manual
January 2019
Hydraulic System – General
The hydraulic integrated circuit, generally known as the manifold system (valve type) is designed to
control all or part of machine functions by integrating various hydraulic cartridge valves into a manifold
to provide directional, pressure, flow, and load control.
The hydraulic system is a feedback, load-sensing type. Generally in this type of system, hydraulic
fluid is provided by a variable displacement, pressure compensated, axial piston type pump which is
directly coupled to the engine. As the engine turns, the hydraulic pump drains fluid from the reservoir
and pumps this fluid to the valve manifold.
If no function is selected to perform, the pump remains on standby and no fluid is pumped through the
manifold. Each function has a maximum pressure control limit set by pressure relief valve.
ART_3132
Power Module
3084RT
Hydraulic
Reservoir
Hydraulic Fluid
Filter
Hydraulic Fluid
Sight Gauge
Hydraulic Fluid
Pump
Engine
15 AMP
BRE
AKE
R
Hydraulic
Reservoir
Hydraulic Fluid
Filter
Hydraulic
Fluid Sight
Gauge
Hydraulic Fluid
Pump and Motor
Main
Hydraulic
Manifold
ART_3282
Controls Module
3084ES
Hydraulic System – General
Secton 5 - Hydraulc System