Pentair HYPRO 9303C - Hydraulic System Connection

Hydraulic Installation
• 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identied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.
• Installing and Removing Metering Orice
Attention: ForpumpsequippedwithHM2andHM4motors,themeteringoriceshouldnotbeusedifthehydraulic
systemisaload-sensing(ow-compensated)closedcentersystem,orifitisanopencentersystemwithamaximum
owof8gpm[30.28lpm]forHM2Cor10gpm[37.85lpm]forHM4C.
• Correctoricesizeisdeterminedbysystemperformance.Startbyinstallingthesmallestoriceintheadaptercon-
nectedtothepressureport.Oncetheoriceisinstalled,testsystemperformanceandifsystemperformanceislow,
installthenextlargestorice.Continuethisprocessuntilpumpperformancereachesthedesiredlevel,ornoorices
are installed in the adapter.
1) Ensure hydraulic system is off.
 2)Removetheadapterfromthemotorusinga1-1/16’’wrench.MakesuretheO-ringisonthemeteringorice 
before installing into port adapter.
 3)Theoriceisremovedorinstalledintheportadapterbytappingeitherinoroutoftheadapter.
  a)Toremove,taptheoriceoutfromthesmallendoftheadapter.
  b)Toinstall,taptheoriceinfromthelargeendoftheadapter.Theoriceisseatedwhenasnapsound 
is heard.
ForHM2andHM4motors,thepressuredifferentialacrossthemotorshouldneverexceed2500PSI[172.4BAR].
Control Systems
• 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.
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