Multiquip manual MC-44S Concrete Mixer Maintenance Engine

Page 25

MC-44S CONCRETE MIXER — MAINTENANCE (ENGINE)

Maintenance

Perform the scheduled maintenance procedures as defined by Table 6 and below:

DAILY

Thoroughly remove dirt and oil from the engine and control area.Clean or replace the air cleaner elements as necessary. Check and retighten all fasteners as necessary. Check the gearbox for oil leaks. Repair or replace as needed.

WEEKLY

Remove the fuel filter cap and clean the inside of the fuel tank.

Remove or clean the filter at the bottom of the tank.

Remove and clean the spark plug (Figure 23), then adjust the spark gap to 0.024 ~0.028 inch (0.6~0.7 mm).This unit has electronic ignition, which requires no adjustments.

DANGER :

DO NOT use gasoline as a cleaning solvent, because that would create a risk of fire or explosion.

ENGINE AIR CLEANER

1.Remove the air cleaner cover and foam filter element as shown in Figure 25.

2.Tap the paper filter element (Figure 34) several times on a hard surface to remove dirt, or blow compressed air [not exceeding 30 psi (207 kPa, 2.1 kgf/cm2)] through the filter elementfromtheaircleanercaseside.NEVER brushoffdirt. Brushingwillforcedirtintothefibers.Replacethepaperfilter element if it is excessively dirty.

3.Clean foam element in warm, soapy water or nonflammable solvent. Rinse and dry thoroughly. Dip the element in clean engineoilandcompletelysqueezeouttheexcessoilfromthe element before installing.

Figure 23. Spark Plug Gap

ENGINE OIL

1.Drain the engine oil when the oil is warm as shown in Figure 24.

2.Remove the oil drain bolt and sealing washer and allow the oil to drain into a suitable container.

3.Replace engine oil with recommended type oil as listed in Table 6. For engine oil capacity, see Table 2 (engine specifications). DO NOT overfill.

4.Install drain bolt with sealing washer and tighten se- curely.

Figure 25. Engine Air Cleaner

Figure 24. Engine Oil (Draining)

MC-44S CONCRETE MIXER — OPERATION & PARTS MANUAL — REV. #8 (09/15/11) — PAGE 25

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Contents Concrete Mixer MC-44S Concrete Mixer Proposition 65WARNING Page MC-44S Concrete Mixer Table of Contents Ordering parts has never been easier Parts Ordering ProceduresMC-44S Mixer Specifications Mixer Dimensions MC-44S Concrete Mixer Dimensions MixerEnsure that MC-44S Concrete Mixer Safety Message Alert SymbolsIndividual has Read This manualMC-44S Concrete Mixer Rules for Safe Operation Emergencies MC-44S Concrete Mixer Rules for Safe OperationMC-44S Mixer Decals Machine Safety DecalsMC-44S Concrete Mixer General Information Mixer Major Components MC-44S Concrete Mixer Mixer Basic ComponentsEngine Controls and Components MC-44S Concrete Mixer Basic Engine ComponentsAssembly MC-44S Concrete Mixer Handwheel AssemblyMixer Tow Bar Vehicle Connection Pintle and Loop Tow Bar to Vehicle Connection Coupler OnlyTow Bar to Mixer Connection Tow Bar and Safety Chain InstallationMC-44S Concrete Mixer Electric Motor Electric MotorVoltage Change SwitchElectric Motor Electric Motor ConnectionMC-44S Concrete Mixer Electric Motor MC-44S Concrete Mixer PRE-INSPECTION GAS Engine Fuel Shut-OFF Lever Starting the Engine Gasoline OnlyStarting the Electric Motor Initial Start-up Instructions Electric Motor StartingOperation MC-44S Concrete Mixer OperationStopping the Mixer Electric Engine Maintenance Schedule MC-44S Concrete Mixer Maintenance EngineMaintenance MC-44S Concrete Mixer Maintenance EngineMC-44S Concrete Mixer Maintenance Mixer Tires/Wheels/Lug Nuts MC-44S Concrete Mixer Maintenance MixerTo tighten wheel lug nuts Page Engine Troubleshooting MC-44S Concrete Mixer Troubleshooting EngineMC-44S Concrete Mixer Troubleshooting ENGINE/MIXER Xxxxx only Not Used on Explanation of Code in Remarks ColumnQty Description MC-44S Concrete Mixer Suggested Spare PartsName Plate and Decals MC-44S Concrete Mixer Name Plate and DecalsMC-44S Concrete MIXER- Name Plate and Decals Steel Barrel Assy MC-44S Steel Barrel AssyCAP Housing JackshaftKing PIN Ring GearMain Frame Assy MC-44S Main Frame AssyGUARD, Gear Wheel Handwheel Safety ChainWASHER, Lock 1/4 ReplacesAxle Assy MC-44S Axle AssyOIL Seal Lock NUT 1/2 NCBearing Cone Bearing CUPCabinet Assy MC-44S Cabinet AssyWASHER, Flat 5/16 Rubber Protector Includes Item WLatch ASSY., Complete WASHER, Flat 3/8GAS Engine Mounting Plate Assy MC-44S GAS Engine Mounting Plate AssyENGINE, Honda 3.9 HP SWITCH, StopRING, Retaining Square KEY 1/4 X 35 MMElectric Motor Mounting Plate Assy MC-44S Electric Motor Mounting Plate AssyDrive Pulley MOTOR, Electric .5 HPBase Plate Engine AIR Cleaner Assy Honda GX120K1QX2 Engine AIR Cleaner AssyCOLLAR, AIR Cleaner GROMMET, AIR CleanerCollar B, AIR Cleaner GASKET, ElbowCamshaft Assy Honda GX120K1QX2 Engine Camshaft AssyROD, Push SPRING, Weight ReturnARM, Valve Rocker LIFTER, ValveCarburetor Assy Honda GX120K1QX2 Engine Carburetor AssyGasket SET PLATE, Lever SettingValve SET, Float Float SETControl Assy Honda GX120K1QX2 Engine Control AssyROD, Governor ARM, GovernorSPRING, Governor SPRING, Throttle ReturnCrankcase Cover Assy Honda GX120K1QX2 Engine Crankcase Cover AssyGASKET, OIL Filler CAP GASKET, Case CoverBEARING, Radial Ball PIN A, DowelCrankshaft Assy Honda GX120K1QX2 Engine Crankshaft AssyCRANKSHAFT, H-TYPE Cylinder Barrel Assy Honda GX120K1QX2 Engine Cylinder Barrel AssyPIN, Governor Weight WEIGHT, GovernorSLIDER, Governor SHAFT, Governor ARMCylinder Head Assy Honda GX120K1QX2 Engine Cylinder Head AssyCLIP, Valve Guide GUIDE, Valve OS OptionalGASKET, Cylinder Head COVER, HeadFAN Cover Assy Honda GX120K1QX2 Engine FAN Cover AssyWIRE, Stop Switch 370MM GROMMET, Adjusting CoverCOVER, FAN *NH1* Black PLATE, Side OIL AlertFlywheel Assy Honda GX120K1QX2 Engine Flywheel AssyPULLEY, Starter FAN, CoolingFlywheel NUT, Special 14MMFuel Tank Assy Honda GX120K1QX2 Engine Fueltank AssyJOINT, Fuel Tank RUBBER, Supporter 107MMTANK, Fuel *NH1* Black GASKET, Fuel Filler CAPIgnition Coil Assy Honda GX120K1QX2 Engine Ignition Coil AssyCoil ASSEMBLY, Ignition Muffler Assy Honda GX120K1QX2 Engine Muffler AssyPROTECTOR, Muffler MufflerGASKET, Muffler SCREW, TappingPiston Assy Honda GX120K1QX2 Engine Piston AssyRing SET, Piston Standard BOLT, Connecting RODPISTON, Standard PISTON, OSRecoil Starter Assy Honda GX120K1QX2 Engine Recoil Starter AssyREEL, Recoil Starter SCREW, SettingRATCHET, Starter GUIDE, RatchetNo Artwork Avalible Gasket KIT Assy Honda GX120K1QX2 Engine Gasket KIT AssyLabels Assy Honda GX120K1QX2 Engine Labels AssyMark Choke Label CautionMARK, OIL Alert Freight Policy Terms and Conditions of Sale PartsPage HERE’S HOW to GET Help