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Section 3 - Operation
Hydraulic Operation - Electro-hydraulic
F3-104
F3-103
Remote Control Valve Operation -
Electro-Hydraulics (EHR) (Optional)
Tractors are equipped with either a Standard Flow
System or High Flow System.
Standard Flow System - 4 to 6 control valves
The standard flow system consists of dual variable
displacement piston pumps located in tandem on
the left side of the engine (1). The Pumps have a
combined rating of 208 L/min (55 GPM). Pump 1
provides priority hydraulic supply to the steering and
braking system followed by remote control valves 1
and 2. Pump 2 supplies remote control valves 3 to 6.
The remote control valve assembly is divided internally
into two separate systems. One side of the system can
be used for the operation of a high flow/low pressure
requirement and the other side of the system can be
used for a low flow/high pressure requirement such as
found on certain hydraulic driven air seeders.
High Flow System (Optional) - 6 or 8 control
valves
Tractors equipped with the High Flow Plus system have
a supplementary third, piston/gear pump mounted on
the rear of the transmission case (2). The pump is
rated at 95 L/min (25 GPM) providing a total system
rating of 303 L/min (80 GPM).
The high flow system offers increased flow and triple
system capability which will allow for more efficient
operation of large individual hydraulic loads such as
dual orbit motors and remote cylinders.
(Synchromesh transmission shown)
2
1
WARNING: HYDRAULIC OIL ESCAPING UNDER
PRESSURE CAN PENETRATE THE SKIN CAUSING
SERIOUS INJURY.
• Use a piece of cardboard or paper, instead of your
hand, to search for leaks.
• Stop the engine and relieve pressure before
connecting or disconnecting lines.
• Tighten all connections before starting the engine
or pressurizing lines.
If any fluid is injected into the skin, obtain medical
attention immediately or gangrene may result.