Multiquip manual MC-42S Concrete Mixer Basic Engine Components

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INITIAL SERVICING
The engine (Figure 3) must be checked for proper lubrication and filled with fuel prior to operation. Refer to the manufacturers Engine manual for instructions & details of operation and servicing.
Honda GX Series Engine Shown

MC-42S CONCRETE MIXER — BASIC ENGINE COMPONENTS

Figure 3. Engine Controls and Components

5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop the flow of fuel.

6. Choke Lever – Used in the starting of a cold engine, or in cold weather conditions. The choke enriches the fuel mixture.

1. Fuel Filler Cap – Remove this cap to add unleaded gasoline to the fuel tank. Make sure cap is tightened securely. DO NOT over fill.

WARNING

Adding fuel to the tank should be accomplished only when the engine is stopped and has had an opportunity to cool down. In the event of a fuel spill,

DO NOT attempt to start the engine until the fuel residue has been completely wiped up, and the area surrounding the engine is dry.

2. Throttle Lever – Used to adjust engine RPM speed (lever advanced forward SLOW, lever back toward operator FAST).

3.

Engine ON/OFF Switch – ON position permits engine

 

starting, OFF position stops engine operations.

4.

Recoil Starter (pull rope) – Manual-starting method. Pull

 

the starter grip until resistance is felt, then pull briskly and

 

smoothly.

7. Air Cleaner – Prevents dirt and other debris from entering the fuel system. Remove wing-nut on top of air filter cannister to gain access to filter element.

NOTE

Operating the engine without an air filter, with a damaged air filter, or a filter in need of replacement will allow dirt to enter the engine, causing rapid engine wear.

8. Spark Plug – Provides spark to the ignition system. Set spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch). Clean spark plug once a week.

9. Muffler – Used to reduce noise and emissions.

WARNING

Engine components can generate extreme heat. To prevent burns, DO NOT touch these areas while the engine is running or immediately after operating. NEVER

operate the engine with the muffler removed.

10. Fuel Tank – Holds unleaded gasoline. For additional information refer to engine owner's manual.

PAGE 14 — MC-42S CONCRETE MIXERS — PARTS & OPERATION MANUAL — REV. #8 (12/16/05)

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Contents Concrete Mixer Page Heres HOW to GET Help MC-42S Concrete Mixer Table of Contents Parts Department Service DepartmentWarranty Department Technical AssistanceModel Baldor 34F324-5596MC-42S Concrete Mixer Dimensions Mixer MC-42S Concrete Mixer Safety Message Alert Symbols Foryour Safety and the Safety of OthersMC-42S Concrete Mixer Rules for Safe Operation MC-42S Concrete Mixer Rules for Safe Operation EmergenciesMachine Safety Decals MC-42S Mixer DecalsMC-42S Concrete Mixer General Information MC-42S Concrete Mixer Mixer Basic Components MC-42S Concrete Mixer Basic Engine Components Starting, OFF position stops engine operationsAssembly Handwheel AssemblyTow Bar to Vehicle Connection Coupler Only Mixer Tow Bar Vehicle Connection Pentile and LoopTow Bar and Safety Chain Installation Tow Bar to Mixer ConnectionElectric Motor Electric Motor ConnectionSingle Phase Electric Motor with 12 inch Pigtail Cable MC-42S Concrete Mixer Electric MotorMC-42S Concrete Mixer PRE-INSPECTION GAS Engine Starting the Engine Gasoline Only Fuel Shut-OFF LeverInitial Start-up Instructions Electric Motor Starting Starting the Electric MotorStopping the Mixer Electric MC-42S Concrete Mixer OperationOperation MC-42S Concrete Mixer Maintenance Engine MC-42S Concrete Mixer Maintenance Engine MaintenanceMC-42S Concrete Mixer Maintenance Mixer MC-42S Concrete Mixer Maintenance Mixer Suspension ComponentsTo tighten wheel lug nuts Page MC-42S Concrete Mixer Troubleshooting Engine Engine TroubleshootingMC-42S Concrete Mixer Troubleshooting ENG./MIXER Explanation of Code in Remarks Column Items Found In the Remarks ColumnMC-42S Concrete Mixer Suggested Spare Parts Name Plate and Decals DECAL, MQ Multiquip Logo CIPDCL160 DECAL, Crush Warning DECAL, Safety InstructionsSee Operation and Safety Decals DECAL, Emergency StopSteel Barrel Assy King PIN Housing JackshaftCAP Ring GearMain Frame Assy WASHER, Lock 1/4 Connector LinkGUARD, Gear Wheel Dump GearAxle Assy Bearing CONE, 7/8 Spindle Lock NUT 5/8 NCOIL Seal Bearing CONE, 1-1/16 SpindleCabinet Assy Latch ASSY., Complete Rubber Protector Includes Item WWASHER, Flat 5/16 WASHER, Lock 5/16GAS Engine Mounting Plate Assy Square KEY ENGINE, Honda 4.0 HPRING, Retaining Upper PulleyElectric Motor Mounting Plate Assy MOTOR, Electric .5 HP Drive PulleyAIR Cleaner Assy Collar B, AIR Cleaner GROMMET, AIR CleanerCOLLAR, AIR Cleaner GASKET, ElbowCamshaft Assy ARM, Valve Rocker SPRING, Weight ReturnROD, Push LIFTER, ValveCarburetor Assy Valve SET, Float PLATE, Lever SettingGasket SET Float SETControl Assy SPRING, Governor ARM, GovernorROD, Governor SPRING, Throttle ReturnCrankcase Cover Assy BEARING, Radial Ball GASKET, Case CoverGASKET, OIL Filler CAP PIN A, DowelCrankshaft Assy CRANKSHAFT, H-TYPE Cylinder Barrel Assy SLIDER, Governor WEIGHT, GovernorPIN, Governor Weight SHAFT, Governor ARMCylinder Head Assy GASKET, Cylinder Head GUIDE, Valve OS OptionalCLIP, Valve Guide COVER, HeadFAN Cover Assy COVER, FAN *NH1* Black GROMMET, Adjusting CoverWIRE, Stop Switch 370MM PLATE, Side OIL AlertFlywheel Assy Flywheel FAN, CoolingPULLEY, Starter NUT, Special 14MMFuel Tank Assy TANK, Fuel *NH1* Black RUBBER, Supporter 107MMJOINT, Fuel Tank GASKET, Fuel Filler CAPIgnition Coil Assy Coil ASSEMBLY, Ignition Muffler Assy GASKET, Muffler MufflerPROTECTOR, Muffler SCREW, TappingPiston Assy PISTON, Standard BOLT, Connecting RODRing SET, Piston Standard PISTON, OSRecoil Starter Assy RATCHET, Starter SCREW, SettingREEL, Recoil Starter GUIDE, RatchetNo Artwork Avalible Honda GX120K1QX2 Engine Gasket KIT Assy Gasket KIT AssyEngine Labels Assy Mark Choke Labels AssyLabel Caution MARK, OIL AlertEffective October 1, 2002 Terms and Conditions of Sale Parts Page Multiquip INC

MC-42S specifications

The Multiquip MC-42S is a powerful and versatile concrete saw designed for both professional contractors and construction enthusiasts. This robust machine embodies a perfect blend of performance, durability, and ease of use, making it an excellent choice for a wide range of cutting applications, including asphalt, concrete, and masonry.

One of the standout features of the MC-42S is its dependable engine. Powered by a Honda GX390 gasoline engine, this saw delivers a peak performance of 13 horsepower, ensuring efficient cutting through tough materials. The engine is not only robust but also designed for fuel efficiency, which is essential for long working hours on the job site.

The MC-42S features an adjustable height handle that allows operators to easily control the cutting depth. This ergonomic handle enhances user comfort while reducing fatigue during prolonged use. The saw is equipped with an innovative bellows-style dust cover that minimizes dust production during cutting, keeping the job site cleaner and safer for everyone.

Another significant characteristic of the MC-42S is its cutting depth capability. With a maximum cutting depth of 14 inches, it’s suitable for a variety of cutting tasks, from shallow cuts to deeper trenches. This versatility allows users to tackle different projects without the need for multiple tools.

The saw features a heavy-duty frame constructed from high-strength materials, which enhances its durability and stability even during the most demanding tasks. Additionally, it comes equipped with large, robust wheels for easy mobility across job sites. This transportability ensures that operators can easily move the saw from one location to another without hassle.

Multiquip has integrated advanced technologies into the MC-42S, including a built-in water supply system that helps to cool the blade during operation. This system not only prolongs the life of the blade but also helps in minimizing the release of concrete dust, making it an environmentally friendly choice.

Finally, the MC-42S is designed for easy maintenance, with accessible components that make servicing straightforward. This feature ensures that the saw remains operational and reliable, minimizing downtime on the job.

In conclusion, the Multiquip MC-42S stands out as a premier option for those in need of a reliable and effective concrete saw. Its powerful engine, user-friendly design, efficient dust control system, and high cutting depth capabilities make it a favored choice across various construction and masonry applications.
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