Pentair HYPRO 9343 Series - Installation Instructions; Preliminary to Mounting; Pump Inlet Line; Pump Outlet Line

All Models — Open Center Systems
ModelsincludeTankPortAdapterwithbuilt-inCheckValve
Assembly and Pressure Port Adapter.
Preliminary to Mounting
Consult the owners manual to determine the type and
capacity of the hydraulic system. Makesure the hydraulic
system is recommended to operate with a continuous load.
Refer to the Pump Selection Guide at www.hypro.pentair.
com to confirm you have the proper pump for your hydraulic
system.
Checktoseethatthepumpimpellercanbeturnedbyhand.
(Turn the shaft clockwise using a deep socket wrench on
the impeller nut.) If it cannot be turned, open the pump
casing to look for obstructions. Clean out any corrosion
buildup where the casing fits over the eye of the impeller.
Pump Inlet Line
To achieve full capacity from the pump, the inlet line
should be at least the same size as the inlet port on the
pump. Reducing this line size will restrict the capabilities
ofthepump.Thelinemustalsobefreeofairleaks.Check
all fittings and connections in the suction line for tightness.
The introduction of air may affect the priming and pumping
capabilities of the pump. Use good quality suction hose
that will not be collapsed by suction.
Pump Outlet Line
The recommended orientation for the outlet port is pointing
straight up. This allows liquid to stay in the pump while
it is priming. The outlet line should be the same size as
the pressure port on the pump to give the optimal flow.
The line should have as few restrictions and elbows as
possible to optimize the pump performance and reduce
pressure drop from the pump to the discharge point.
Priming the Pump
The pump must not be run dry.
Before starting the pump, the chamber needs to be filled
with liquid. The pump must not be run unless it is completely
filled with liquid because there is a danger of damaging
the mechanical seal, which depends on the liquid for its
lubrication.
Self-priming models can be primed by removing the top vent
plug and filling the priming chamber. The priming chamber
will fill to the level of the inlet port. After use, the priming
chamber should be flushed and drained to avoid chemical
corrosion and damage from freezing. Drain by removing the
lower drain plug.
Hooking Up the Hydraulic Motor to the
Tractor Hydraulic System
Hypro Series 9300HMC hydraulic motor-driven pumps
can be mounted on either the tractor or sprayer. When
hooking up, make sure that no dirt or liquid gets into the
hydraulic motor. Keep all hydraulic connections clean.
The recommended filter for the hydraulic motor removes
particulates greater than and including 10 microns. The
>10 micron filter should be placed on the return line of the
hydraulicsystemtomitigatetheriskofcontaminatingtheoil
tank.Besuretoconnectthehydraulicmotorintothesystem
correctly by putting the pressure line to the pressure port
andreturn lineto thetankport. Theports onthehydraulic
motor are sized to accommodate 7/8” and 1 1/16” SAE
fittings. For maximum performance, the hydraulic lines
should also be at least 1/2” [12.7 mm] in size. For lines
longer than 8 feet [2.44 m], hydraulic line size should be at
least 3/4” [19.05 mm] in order to reduce heat generation.
Standard spool valves, which are found on all tractor
hydraulic systems, may cause potentially damaging high
peak pressures in the hydraulic system when closed,
because of abrupt shut-off of oil flow in both the supply and
return lines. When shutting off the pump, move the selector
to the FLOAT position to allow the centrifugal pump to come
to a stop gradually.
Installation Instructions
10
L-1581 Rev. A (10/18)