Hypro low pressure diaphragm pumps are recommendedfor ground and low-level spraying of herbicides, pesticides, liquid fertilizers and many other hard-to- handle fluids. Low-cost maintenance and almost wear- free operation make these pumps ideal for a wide varietyofspraying jobs. Pressure and output are designed foroptimum performance of medium to large-sized sprayers. Hypro low pressure diaphragm pumps can be adapted for splined shaft, hollow shaft, and solid shaft drive options. Pumps include a pulsation dampener. > Max flow: 42.5 gpm Max flow: 66 gpm Max flow: 19 gpm Max flow: 30.1 gpm Max pressure: 290 psi Max pressure: 290 psi Max pressure: 290 psi Max pressure: 290 psi 4diaphragms 6diaphragms 2diaphragms 3diaphragms >

Diaphragm Pump Connection 1.Always mount the pump with oil sight tube in the uprightposition.2.Proper selection of type and size of hose is vital to goodperformance:a. Use suction line of spiral wire braid reinforced suctionhose to prevent collapse. Diameter of inlet hose should be at least that of the pump inlet hose barb or greater.b. Use only approved high pressure hose on dischargeside of pump.3.All ports are provided with hose barb connections. Usegood quality hose clamps, and tighten securely. NOTE: Use only pipe, fittings, accessories, hose, etc.rated for the maximum pressure rating of...

II.Diaphragm Replacement Hypro recommends changing diaphragms every 500 hours or three months, whichever comes first.1.Drain the oil from the pump by removing drainplug. Rotate the shaft to remove excess oil.2.Remove the pump manifold according to Step 2in Section I: Valve and O-ring Replacement.3.Use a 19 mm box wrench (or adjustable wrench)to remove the diaphragm retaining bolt, support washer and diaphragm. Toreplace the diaphragms, order the appropriate repair kit. See the parts list. 4. Turn the crankshaft to bring the piston to itsupstroke to replace the diaphragm. Use the downstroke to...

Operation 1.Before starting pump, adjust relief valve for the lowestpossible pressure by screwing the pressure adjustment knob (4) all the way counterclockwise.2.On Model 3300-0088, turn the main on-off lever (6) to the fullbypass (up) position.3. Open all boom feed lines by lifting lever(s) to the up position. 4.Start pump and allow liquid to flow through the control unit. 5.Turn main on-off valve lever (6) to on position (down) andadjust to the desired spraying pressure by turning the pressure adjustment knob (4). Turning the knob clockwise will increase the pressure.6.The 3300-0087 or 3300-0088...

THIS WARRANTYIS EXCLUSIVE. HYPRO MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOTLIMITED TO ANYWARRANTYOF MERCHANTABILITYOR FITNESS FOR APARTICULAR PURPOSE. Hypros obligation under this warranty is, at HyproҒs option, to either repair or replace the product upon return of the entire productto the Hypro factory in accordance with the return procedures set forth below. THIS IS THE EXCLUSIVE REMEDYFOR ANYBREACH OF WARRANTY.IN NO EVENT SHALLHYPRO BE LIABLE FOR ANYINCIDENTALOR CONSEQUENTIALDAMAGES OF ANYKIND,WHETHER FOR BREACH OF ANYWARRANTY, FOR NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY,...