Hagie STS12i Combo, Manual

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SECTION 5 – HYDRAULIC SYSTEMS
HYDRAULIC SYSTEM
COMPONENTS
Hydraulic Pumps
(Mounted to the engine)
• Gear Pump
• Pressure Compensated (PC) Pump
• Load Sense (LS) Pump
• Drive Pump
The four Hydraulic Pumps (mounted to the
engine) circulate hydraulic oil throughout the
necessary systems and back through the oil
cooler before returning it to the reservoir.
NOTE: If the hydraulic oil level in the reservoir
drops too low for safe operation, shut
down the engine immediately to prevent
damage to the hydraulic systems.
Gear Pump
The Gear Pump powers the Reversible Fan
motor and control valve.
PC Pump
The PC Pump powers the high-pressure filter,
power steering, attachments, tread adjustment
valve, side-fill valve, AWS valve (if equipped),
and the pressure washer valve (if equipped).
LS Pump
The LS Pump powers the solution pump
control valve.
Drive Pump
The Drive Pump powers the wheel motors.
Hydraulic Filtering/Cooling
Components
• Oil Cooler
• Reservoir
• Return Filter
• Pressure Filter
• Case Drain Filter
• Breather Cap
• Level/Temp Sensor
NOTE: Refer to the Maintenance and Storage
Section elsewhere in this manual for
information on filling the hydraulic oil
reservoir and replacing hydraulic filters.
Hydraulic Pumps
(View shown from top of machine)
• Gear
Pump
• PC
Pump
• LS
Pump
• Drive
Pump