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Multiquip MQD2H manual MQD3H -WATERBOXAND FLAP VALVE ASSY, WATERBOX AND FLAP VALVE ASSY. 3-INCH

Models: MQD2H

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MQD3H —WATERBOX AND FLAP VALVE ASSY.

MQD3H —WATERBOX AND FLAP VALVE ASSY.

WATERBOX AND FLAP VALVE ASSY. (3-INCH)

PAGE 40 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11)

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Multiquip MQD2H manual MQD3H -WATERBOXAND FLAP VALVE ASSY, WATERBOX AND FLAP VALVE ASSY. 3-INCH

Contents

OPERATION AND PARTS MANUAL MODELS MQD2H MQD3HDIAPHRAGM PUMPS Revision #6 10/27/11PROPOSITION 65 WARNING Page TABLE OF CONTENTS MQ-D2H/D3HGasoline Powered Diaphragm PumpsHONDAGX120K1QX2 Engine Component DrawingsPARTS ORDERING PROCEDURES When ordering parts, please supplyOrdering parts has never been easier Choose from three easy optionsSAFETY INFORMATION SAFETY MESSAGESSAFETY SYMBOLS SymbolGENERAL SAFETY ﬁre extinguisherﬁrst aid kit SAFETY INFORMATIONPUMP SAFETY ELECTRICAL SAFETY„NEVER disconnect any emergency or SAFETY INFORMATIONPower Cord/Cable Safety Grounding SafetyLIFTING SAFETY TRANSPORTING SAFETYTable 1. Specifications Pump Table 2. Specifications EngineSPECIFICATIONS Dry Net WeightDIMENSIONS Table 3. DimensionsMODEL GENERAL INFORMATION Power PlantOil Alert Feature Table 5. Performance Loss at Various ElevationsFigure 2. MQ-D2H/D3HPump Application COMPONENTSused in general de-wateringapplications. Typical BASIC ENGINE DANGER - Explosive FuelCAUTION - Burn Hazard Figure 3. Engine Controls and ComponentsINSPECTION CAUTION - Read ManualTable 6. Oil Type DANGER - Explosive FuelSETUP Handle InstallationCAUTION - General Safety Precautions WARNING - Fill CapCAUTION - Strainer CAUTION - Flammable Fluidsmechanical seal to prevent water SETUPOPERATION Figure 13. Engine ON/OFF Switch ON PositionCAUTION - Read Manual Starting the Engine HONDA engineFigure 18. Engine ON/OFF Switch OFF OPERATIONFigure 15. Choke Lever Open Figure 16. Throttle Lever RunMAINTENANCE FlapperValve ReplacementConnecting Rod Bearing Lubrication Pump Vacuum Testaltitude. See Tables 4 and MAINTENANCEFigure 21. Pump Vacuum Tester Rotation of Suction and Discharge Ports Clearing a Jam-UpCAUTION - Stalled or Stopped Pump Stalled PumpSeized Plunger Diaphragm ReplacementMAINTENANCE MAINTENANCE Table 7. Engine Maintenance ScheduleEngine Maintenance 1Service more frequently when used in DUSTY areasDANGER - Combustion Fire , Explosion MAINTENANCEMaintenance ENGINE AIRCLEANERPREPARATION FOR LONG-TERMSTORAGE Pump StorageTROUBLESHOOTING TABLE 8. ENGINE TROUBLESHOOTINGSYMPTOM POSSIBLE PROBLEMTABLE 8. ENGINE TROUBLESHOOTING Continued TROUBLESHOOTINGTABLE 9. PUMP TROUBLESHOOTING SYMPTOMTROUBLESHOOTING TABLE 9. PUMP TROUBLESHOOTING ContinuedSYMPTOM POSSIBLE PROBLEMEXPLANATION OF CODE IN REMARKS COLUMN SAMPLE PARTS LISTNO. Column PART NO. ColumnSUGGESTED SPARE PARTS MQ-D2H/D3HDIAPHRAGM PUMP 1TO 3 UNITS WITHHONDA GX120K1QX2 ENGINE DescriptionNAME PLATE AND DECALS ASSY NAMEPLATE AND DECALS ASSYREMARKS PART NAMENAME PLATE AND DECALS ASSY MQD2H - WATERBOX AND FLAP VALVE ASSY WATERBOX AND FLAP VALVE ASSY. 2-INCHMQD2H - WATERBOX AND FLAP VALVE ASSY QTY. REMARKSPART NAME MQD2H -PUMPASSY PUMP ASSY. 2-INCHMQD2H -PUMPASSY PUMP ASSY. 2-INCHPART NAME QTY. REMARKSHANDLE, ENGINE AND WHEEL ASSY. 2-INCH MQD2H -HANDLE,ENGINE, AND WHEEL ASSYMQD2H -HANDLE,ENGINE, AND WHEEL ASSY PART NAMEREMARKS 335410800MQD3H -WATERBOXAND FLAP VALVE ASSY WATERBOX AND FLAP VALVE ASSY. 3-INCHMQD3H -WATERBOXAND FLAP VALVE ASSY WATERBOX AND FLAP VALVE ASSY. 3-INCHPART NAME QTY. REMARKSMQD3H - PUMP ASSY 28 27MQD3H - PUMP ASSY PUMP ASSY. 3-INCHPART NAME REMARKSHANDLE, ENGINE AND WHEEL ASSY. 3-INCH 7 6 1 2MQD3H - HANDLE, ENGINE, AND WHEEL ASSY PART NAME MQD3H - HANDLE, ENGINE, AND WHEEL ASSYREMARKS HONDA GX120K1QX2 ENGINE - AIR CLEANER ASSY AIR CLEANER ASSYHONDA GX120K1QX2 ENGINE - AIR CLEANER ASSY AIR CLEANER ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - CAMSHAFT ASSY CAMSHAFT ASSYHONDA GX120K1QX2 ENGINE - CAMSHAFT ASSY CAMSHAFT ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - CARBURETOR ASSY CARBURETOR ASSYHONDA GX120K1QX2 ENGINE - CARBURETOR ASSY CARBURETOR ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - CONTROL ASSY CONTROL ASSYHONDA GX120K1QX2 ENGINE - CONTROL ASSY CONTROL ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - CRANKCASE COVER ASSY CRANKCASE COVER ASSYHONDA GX120K1QX2 ENGINE - CRANKCASE COVER ASSY CRANKCASE COVER ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - CRANKSHAFT ASSY CRANKSHAFT ASSYHONDA GX120K1QX2 ENGINE - CRANKSHAFT ASSY CRANKSHAFT ASSYPART NAME 13310ZE0601HONDA GX120K1QX2 ENGINE - CYLINDER BARREL ASSY CYLINDER BARREL ASSYHONDA GX120K1QX2 ENGINE - CYLINDER BARREL ASSY PART NAMEQTY. REMARKS 120A0ZH7810HONDA GX120K1QX2 ENGINE - CYLINDER HEAD ASSY CYLINDER HEAD ASSYHONDA GX120K1QX2 ENGINE - CYLINDER HEAD ASSY PART NAMEREMARKS 12210ZH7000HONDA GX120K1QX2 ENGINE - FAN COVER ASSY FAN COVER ASSYFAN COVER ASSY HONDA GX120K1QX2 ENGINE - FAN COVER ASSYPART NAME HONDA GX120K1QX2 ENGINE - FLYWHEEL ASSY FLYWHEEL ASSYFLYWHEEL ASSY HONDA GX120K1QX2 ENGINE - FLYWHEEL ASSYPART NAME HONDA GX120K1QX2 ENGINE - FUEL TANK ASSY FUEL TANK ASSYHONDA GX120K1QX2 ENGINE - FUEL TANK ASSY FUEL TANK ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - IGNITION COIL ASSY IGNITION COIL ASSYCAP ASSEMBLY, NOISE SUPPRESSOR HONDA GX120K1QX2 ENGINE - IGNITION COIL ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - MUFFLER ASSY MUFFLER ASSYMUFFLER ASSY HONDA GX120K1QX2 ENGINE - MUFFLER ASSYPART NAME HONDA GX120K1QX2 ENGINE - PISTON ASSY PISTON ASSYPISTON ASSY HONDA GX120K1QX2 ENGINE - PISTON ASSYPART NAME HONDA GX120K1QX2 ENGINE - RECOIL STARTER ASSY RECOIL STARTER ASSYHONDA GX120K1QX2 ENGINE - RECOIL STARTER ASSY PART NAMEREMARKS 28400ZH8013ZBHONDA GX120K1QX2 ENGINE - GASKET KIT ASSY GASKET KIT ASSYHONDA GX120K1QX2 ENGINE - GASKET KIT ASSY GASKET KIT ASSYPART NAME REMARKSHONDA GX120K1QX2 ENGINE - LABELS ASSY LABELS ASSYLABELS ASSY HONDA GX120K1QX2 ENGINE - LABELS ASSYPART NAME TERMS AND CONDITION OF SALE - PARTS SPECIAL EXPEDITING SERVICEPAYMENT TERMS FREIGHT POLICYPage HERE’S HOW TO GET HELP NUMBER ON-HANDWHEN CALLINGWarranty Department Service Department