Multiquip MC94S manual MC94P/S Concrete Mixer Troubleshooting Engine, Engine Troubleshooting

Page 30

MC94P/S CONCRETE MIXER — TROUBLESHOOTING (ENGINE)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the

diagnosis based on the Troubleshooting (Tables 10 and 11) information shown below and on the next page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.

TABLE 10. ENGINE TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

Difficult to start

 

 

 

 

 

 

Ignition plug being bridge?

Check ignition system.

 

 

 

Fuel is available but spark plug

Carbon deposit at ignition?

Clean or replace ignition.

 

 

will not ignite. (Power available

Short circuit due to defective

Replace insulators.

at high tension cable).

insulators?

 

 

 

 

 

 

 

Improper spark gap?

Set spark plug gap to the correct gap.

 

 

 

Fuel is available but spark plug

Short circuit at stop switch?

Check stop switch circuit. Replace stop switch if defective.

will not ignite. (Power NOT

 

 

 

 

available at high tension cable).

Ignition coil defective?

Replace ignition coil.

 

 

 

 

Muffler clogged with carbon

Clean or replace muffler.

 

deposits?

 

Fuel is available and spark plug

 

 

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

ignites (compression normal).

dust)?

 

 

 

 

 

 

 

Air Cleaner clogged?

Clean or replace air cleaner.

 

 

 

 

Defective cylinder head gasket?

Tighten cylinder head bolts or replace head gasket.

Fuel is available and spark plug

 

 

Cylinder worn?

Replace cylinder.

ignites (compression low ).

 

 

 

Spark plug loose?

Tighen spark plug.

 

 

 

Operation not satisfactory

 

 

 

 

 

 

Air cleaner clogged?

 

 

 

 

Not enough power available

Air in fuel line?

Bleed (remove air) from fuel line.

 

 

(compression normal, no miss-

Fuel level in carbureator float

 

firing).

Adjust carbureator float

chamber improper?

 

 

 

 

 

 

Carbon deposits in cylinder?

Clean or replace cylinder

 

 

 

 

Ignition coil defective?

Flush fuel sytem and replace with fresh fuel.

Not enough power available

 

 

Ignition plug often shorts?

Replace ignition wires, clean ignition.

(compression normal, miss-

 

 

firing).

Fuel in use inadequate (water,

Flush fuel sytem and replace with fresh fuel.

 

 

dust)?

 

 

 

 

 

Excessive carbon depostion in

Clean or replace crankcase.

 

combustion chamber?

 

 

 

 

Engine overheats.

Exhaust or muffler clogged with

Clean or replace muffler.

 

carbon.

 

 

 

 

 

Spark plug heat value incorrect?

Replace spark plug with correct type spark plug.

 

 

 

PAGE 30 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

Page 29 Page 31
Image 30
Page 29 Page 31
Contents Models MC94S MC94P Proposition 65WARNING Page MC94P/S Concrete Mixer Table of Contents Parts Ordering Procedures Best Deal! Order via Internet Dealers OnlyOrder via Fax Dealers Only MC94P/S Concrete Mixer Specifications Specifications Engines/Electric MotorMC94P/S Concrete Mixer Dimensions Mixer Mixer DimensionsMC94P/S Concrete Mixer Safety Message Alert Symbols Foryour Safety and the Safety of OthersGeneral Safety MC94P/S Concrete Mixer Rules for Safe OperationMC94P/S Concrete Mixer Rules for Safe Operation EmergenciesMC94P/S Concrete Mixer Operation and Safety Decals Machine Safety DecalsMC94P/S Concrete Mixer General Information MC94P/S Concrete Mixer Mixer Basic Components Mixer Major ComponentsMC94P/S Concrete Mixer Basic Engine Components Engine Controls and ComponentsMC94P/S Concrete Mixer Handwheel Assembly AssemblyTow Bar to Vehicle Connection Coupler Only Mixer Tow Bar Vehicle Connection Pintle and LoopMC94P/S Concrete Mixer Safety Chain Connection Tow Bar to Mixer ConnectionElectric Motor Electric MotorVoltage Change SwitchMC94P/S Concrete Mixer Electric Motor Electric Motor ConnectionSingle Phase Electric Motor MC94P/S Concrete Mixer Electric MotorMC94P/S Concrete Mixer PRE-INSPECTION GAS Engine MC94P/S Concrete Mixer Initial START-UP GAS Engine Starting the Engine Gasoline OnlyMC94P/S Concrete Mixer Initial START-UP Electric Motor Initial Start-up Instructions Electric Motor StartingStarting the Electric Motor MC94P/S Concrete Mixer Operation OperationStopping the Mixer Electric MC94P/S Concrete Mixer Maintenance Engine Engine Maintenance ScheduleMC94P/S Concrete Mixer Maintenance Engine MaintenanceMC94P/S Concrete Mixer Maintenance Mixer MC94P/S Concrete Mixer Maintenance Mixer Suspension ComponentsTo tighten wheel lug nuts Page MC94P/S Concrete Mixer Troubleshooting Engine Engine TroubleshootingMC94P/S Concrete Mixer Troubleshooting ENGINE/MIXER Engine TroubleshootingExplanation of Code in Remarks Column Xxxxx only Not Used onMC94P/S Concrete Mixer Suggested Spare Parts DescriptionMC94P/S Concrete Mixer Name Plate and Decals Name Plate and DecalsMC94P/S Concrete MIXER- Name Plate and Decals MC94P/S Plastic Barrel Plastic Barrel AssyNUT, Lock 3/8 NC HOUSING, JackshaftRing Gear BARREL, Plastic 9 CU. FTMC94P/S Steel Barrel Steel Barrel AssyShim .100 Thick BARREL, Steel 9 CU. FTShim 0.25 Thick Shim .140 ThickMC94P/S Main Frame Assembly Main Frame AssyWASHER, Lock 1/4 Safety ChainGUARD, Gear Wheel Dump GearMC94P/S Axle Assembly Axle AssySpring Leaf Lock NUT 5/8 NCSpring Support AxleMC94P/S Cabinet Assembly Cabinet AssyRubber Protector Includes Item W WASHER, Flat 5/16Latch ASSY., Complete MC94P/S GAS Engine Mounting Plate Assembly GAS Engine Mounting Plate AssySquare KEY 1/4 X 40 MM SWITCH, StopENGINE, Honda 8.0 HP Upper PulleyMC94P/S Electric Motor Mounting Plate Assembly Electric Motor Mounting Plate AssyMOTOR, Electric 1.5 HP Honda GX240K1QA2 Engine AIR Cleaner Assy AIR Cleaner AssyCOLLAR, AIR Cleaner COVER, AIR CleanerGROMMET, AIR Cleaner Collar B, AIR CleanerHonda GX240K1QA2 Engine Camshaft Assy Camshaft AssyROD Push SPRING, Weight ReturnCamshaft ARM Valve RockerHonda GX240K1QA2 Engine Carburetor Assy Carburetor AssyValve SET, Float PLATE, Lever SettingGasket SET Float SETHonda GX240K1QA2 Engine Control Assy Control AssyBOLT, Governor ARM NUT, SELF- Lock 6MM Honda GX240K1QA2 Engine Control AssySPRING, Cable Return NUT, FlangeHonda GX240K1QA2 Engine Crankcase Cover Assy Crankcase Cover AssyPIN, Governor Weight WEIGHT, GovernorHOLDER, Governor Weight Type BalancerHonda GX240K1QA2ENGINE Crankshaft Assy Crankshaft AssyWeight Balancer Honda GX240K1QA2 Engine Crankshaft AssyHonda GX240K1QA2 Engine Cylinder Barrel Assy Cylinder Barrel AssyBOLT, Drain Plug Switch ASSY., OIL LevelSHAFT, Governor ARM Ring 14MM AraiHonda GX240K1QA2 Engine Cylinder Head Assy Cylinder Head AssyCLIP, Valve Guide GUIDE, VALVE, OS, OptionalGUIDE, EX. VALVE, OS, Optional GASKET, Cylinder HeadHonda GX240K1QA2 Engine FAN Cover Assy FAN Cover AssyCLIP, Tube Switch ASSY., Engine StopCLIP, Wire Harness ShroudHonda GX240K1QA2 Engine Flywheel Assy Flywheel AssyNUT, Special 16MM FAN, CoolingFlywheel Comp KEY, Special WoodruffHonda GX240K1QA2 Engine Muffler Assy Muffler AssyPROTECTOR, EX. Pipe MufflerPROTECTOR, Muffler PIPE, EXHonda GX240K1QA2 Engine Fueltank Assy Fuel Tank AssyTank COMP., Fuel *NH1*, Black Rubber Supporter 107MMJOINT, Fuel Tank GASKET, Fuel Filler CAPHonda GX240K1QA2 Engine Ignition Assy Ignition Coil AssyCoil ASSY., Ignition GROMMET, WireWIRE, Stop Switch 370MM CAP ASSY., Noise SuppressorHonda GX240K1QA2 Engine Piston Assy Piston AssyRing SET, PISTON, 0.75, Optional BOLT, Connecting RODRing SET, PISTON, STD PISTON, StandardHonda GX240K1QA2 Engine Recoil Starter Assy Recoil Starter AssySPRING, Friction PULLEY, Recoil StarterRATCHET, Starter SPRING, Starter ReturnHonda GX240K1QA2 Engine Label Assy Label AssyMARK, CAUTION, External Labels AssyEMBLEM, Internal LABEL, CautionTerms and Conditions of Sale Parts Freight PolicyPage HERE’S HOW to GET Help
Top Page Image Contents