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• Closed center (Pressure-Compensated) systems
• Metering orifices needed for optimal performance
• Use the smallest motor possible
• Closed center Load Sensing (Flow and Pressure-Compensated) systems
• No special requirement for bypass or metering orifices
Hydraulic system plumbing
•
When installing the hydraulic motor into the tractor or sprayer's hydraulic system, make sure that no dirt or liquid gets
into the hydraulic motor.
KEEP ALL HYDRAULIC CONNECTIONS CLEAN.
•
Ensure return line is connected to low pressure return port on the tractor recommended for hydraulic motors, the ports
are identified on the motor casting. Hydraulic supply lines should be at least the same size as the hydraulic motor port
or larger.
•
Standard models come equipped with check valve port adapters that should not be removed.
Hooking up the motor in the wrong direction will damage the hydraulic seal.
* Hydraulic back pressure in the return line must be less than 100 PSI [6.9 bar] to prevent reduced seal life. Pressures
under 50 PSI [3.4 bar] are recommended.
* For motors equipped with case drains the case drains must be used to minimize the pressure acting on the hydraulic
motor seal, and extend the life of the oil seal. The case drain line must be connected directly to the hydraulic reservoir with
no restrictions, and the case drain port on the motor must always be oriented upward.
THE CASE DRAIN PORT ON THE HYDRAULIC MOTOR MUST NEVER BE PLUGGED.
•
All pump systems with electric or hydraulic power sources are required to have a control system which meets all local
and national standards.
•
For more detail on a typical system installation, see preceding subsections of the "Assembly and Installation" section
of this manual.
Commissioning, Start-Up, Operation, Shutdown
Before attempting to start your pump, the following must be understood and followed to ensure safe operation.
•
When running Hypro centrifugal pumps, it is essential that operators use hearing protection as the sound levels
can reach levels of 80 decibels.
•
When handling Hypro pumps, one should wear steel-toed shoes and protective gloves in order to protect the feet
in the event the pump is dropped and protect the hands from any sharp surfaces on the pump or chemicals.
•
Only authorized operators having the knowledge and skill necessary to safely use a Hypro pump, or any
equipment the pump is connected to, may run the pump.
•
When spraying manually, it is recommended that chemical-resistant face masks and clothing be worn to prevent
any chemicals from coming into contact with the skin or being inhaled.
•
When spraying manually, always spray downwind of yourself as long as the sprayed chemical will not drift into the
vicinity of other people.
•
When installing, adjusting or removing a Hypro centrifugal pump, ensure that there are no objects which can fall
on the installer and make certain that all machinery to which the pump is to be attached is turned off.
Control Systems
Information
10
Form L-1595
Rev. B
12-09-19
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