SECTION 5 –
HYDRAULIC SYSTEMS
5-5
Refer to the
Spray Systems Section
elsewhere in this manual for further
information.
REVERSIBLE FAN
The Reversible Fan is hydraulically driven
via the constant pitch fan hydraulic motor,
which in turn, is driven by the hydraulic
pump. The system’s hydraulic pump is driven
directly off engine-supplied PTO (power
take-off) to efficiently draw power
independent of engine speed. An electrically-
controlled proportional pressure control
valve (FDC - Fan Drive Control mounted to
pump) modulates fan speed depending on
machine’s cooling demand. On-demand
operator input controls the fan reversing
option to provide the operator the ability to
purge debris from the cooling package
shroud.
NOTE: The fan system reduces power and
fuel consumption of the engine when
full airflow is not required to keep the
engine cool.
WARNING
Improper operation, maintenance, or
repair of this product can be dangerous
and may result in serious injury or death.
• Always use Hagie-approved parts and
components. Failure to comply will result
in voiding the 1-year parts warranty.
• Do not operate or perform any service on
this product until you have read and
understand the operation and
maintenance information. Contact your
local John Deere dealer for any additional
information that you may require.
• The person(s) servicing the product may
be unfamiliar with many of the systems or
components of the product. Use caution
when performing service. Knowledge of
the product and components are important
before the removal or disassembly of any
component.
Boom Control Manifold and
NORAC Hydraulic Controller
(Located near center of inner transom)
-Typical View
* 120’ Hybrid Spray Booms
• NORAC
Hydraulic
Controller
• Boom Control
Manifold
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