Multiquip DFG Series manual Troubleshooting

Page 47

TROUBLESHOOTING

Troubleshooting

ELECTRIC MOTOR.

Application: DFG/E Series SURFACE GRINDER.

MOTOR FAILS TO START

ON/OFF switch in the OFF position. Turn the switch to the ON position.

Improper voltage selection. Determine the available voltage value from the power source. Move the voltage selection switch located on the motor to the proper selection.

SURFACE GRINDER and/or extension cord is not plugged into the power source. Determine that all electrical connections have been properly made. The NEMA 6-20 Series cap and receptacle set is of a twist lock configuration and requires a twist motion to ensure a proper connection.

Improper extension cord size and capacity. Operate the SURFACE GRINDER with copper stranded, 8 AWG or larger extension cords. Improper extension cord size and capacity will result in significant heat rise and corresponding voltage and amperage drop.

Thermal protection device activated. To protect the motor against heat related damage, an automatic thermal protection switch is provided near the voltage selection switch. High operating temperatures will activate the switch and shut the motor off. After the motor has cooled to an acceptable temperature level,depress the switch to restart.

ELECTRIC MOTOR LOSES POWER

Improper extension cord size and capacity. Replace with cords meeting the required specifications.

Excessive extension cord length. Even with proper extension cord size and capacity, excessive cord length can reduce the available voltage and amperage to the motor. Measure the available voltage to the motor where the extension cord connects to the SURFACE GRINDER with a voltmeter. Reduce the extension cored length as required to achieve the minimum voltage operating specification as required by the motor manufacturer.

Insufficient available voltage and amperage at the power source. Measure the available voltage at the power source (usually a receptacle) with a voltmeter. If the available voltage is below the minimum operating specification as required by the motor manufacturer, utilize an alternative power source.

Improper motor cooling. See ELECTRIC MOTOR SERVICE.

Excessive load to the motor. See OPERATING THE SURFACE GRINDER ON THE JOBSITE.

ENGINE.

Application: DFG/G Series SURFACE GRINDERS.

ENGINE FAILS TO START

Ignition switch in OFF or cut off position. Place switch in the ON position or move throttle control lever to the ignition operational position.

Incorrect carburetor/fuel ignition system adjustment. See SERVICE section.

Air filter blocked. See SERVICE section.

Ignition wire to spark plug loose or disconnected. Reconnect.

Application: DFG/G Series SURFACE GRINDER.

Fuel supply exhausted. Refill the fuel tank.

Spark plug fouled. Replace Spark Plug. Refill the fuel tank.

ENGINE LOSES POWER

Incorrect carburetor/fuel injection adjustment. See SERVICE section.

Excessive carbon accumulation in combustion chamber. See SERVICE section.

Excessive material build-up around the cooling fins. See SERVICE section.

Application: DFG/G Series SURFACE GRINDER.

Water in fuel supply. Drain and replace fuel.

Fuel tank breather vent closed (if so equipped). Open vent.

Air filter blocked. See SERVICE section.

DFG-SERIES SURFACE GRINDERS

OPERATION AND PARTS MANUAL REV #4 (05/28/09)

PAGE 47

 

 

 

Page 46 Page 48
Image 47
Page 46 Page 48
Contents Electric Gasoline Page Table of Contents Table of Contents Page Parts Ordering Procedures Page Page Operator Instructional Data Sheet Safety Precautions Safety Precautions Operation Surface Grinder MAINTENANCE, Repair and StorageSafety Precautions Application All Models AssemblyRemoving the Surface Grinder from the Pallet Installing the SG24-1000 Safety and Dust Shield Assembly KIT Filling the DFG/G Series Engine Fuel Tank Before Starting the EngineFilling the Engine Crankcase with OIL Applications DFG/G Surface GrinderGrinding Stones MULTI-ACCESSORY Attachments and ApplicationsOperation Theory of OperationScarifier Blocks Tungsten Carbide Grinding BlockBeam Flail Star FlailSpacer Washer Pentagonal FlailScarifier Block Bushing Wire brushesSCRAPE-R-TACH Industrial Floor Coatings Removal System Floor BrushesAssembly INSTRUCTIONS/OPERATIONS Follow all safety precautions for the safety solvent Diamond Segment Block Assembly INSTRUCTIONS/OPERATIONS From the Counterrotating Discs Assembly INSTRUCTIONS/OPERATIONS Adjusting the Operator Handle HEIGHT. Application All Models Assembly INSTRUCTIONS/OPERATIONS Assembly INSTRUCTIONS/OPERATIONS Operating the Surface Grinder on the Jobsite Fiure Result in Property Damage AND/OR Personal InjuryAssembly INSTRUCTIONS/OPERATIONS Definitions of floor flatness and levelness Stopping the DFG/G Series Gasoline Powered Surface GrinderApplication All Models Early Age Grinding Defined Versus Random Traffic Patterns How to Define Surface RegularityTR 34 tolerances for defined traffic floors Assembly INSTRUCTIONS/OPERATIONS Preventative Maintenance Check LIST. Application All Models MAINTENANCE/SERVICEMaintenance/Service Observe all applicable safety precautions for the solvent MAINTENANCE/SERVICE Checking V-BELT Tension and Alignment MAINTENANCE/SERVICE Lubrication Requirements Engine Service Electric Motor ServiceTroubleshooting TroubleshootingAccelerated Bearing Wear AND/OR Failure Operational PROBLEMS. Application All ModelsUneven MULTI-ACCESSORY Attachment Wear Accelerated V-BELT WearStorage StorageGeneral SpecificationsPage Explanation of Code in Remarks Column Qty Description Suggested Spare PartsUnits Gasoline Engine Units Electric Motor ModelOperator Handle ASSY. Electric Operator Handle ASSY. ElectricCABLE, Short HANDLE, Operator UniversalHP Motor only CABLE, LongOperator Handle ASSY. Gasoline Operator Handle ASSY. GasolineQTY Remarks CABLE, ThrottleKNOB, Throttle Control Electric Motor Assy Electric Motor AssyWASHER, Flat 5/16, Plated MOUNT, Electric MotorHP 50 HZ Motor SCREW, CAP 5/16-18 UNC X 1 PlatedGasoline Engine Assy Gasoline Engine AssyCAP, OIL Drain ENGINE, Honda 11 H.PMOUNT, Gasoline Engine CLUTCH, Pulley AssyWheel Assy Wheel AssyWASHER, Flat ¾ Plated ARM, SwingWheel AXLE, PlatedTransmission Assy Transmission AssyWASHER, Lock 5/16 Plated FRAME, MainCOVER, Transmission BEARING, FlangeHead Assy Head AssyDISC, Mounting DISC, MULTI- Accessory LHDISC, MULTI- Accessory RH BAR, MountingSafety and Dust Shield Assy Safety and Dust Shield AssySTRAP, Skirt Skirt AssemblySKIRT, Grinder WASHER, Fender 1/4 , PlatedScarifier Assy Scarifier AssyWEDGE, Plastic HousingBushing NUT, HEX 3/8 UNC, Nylock PlatedSCRAPE-R-TACH Assy INSERT, Tungsten Carbide HOLDER, InsertMOUNT, Rubber SpacerGrinding Block Assy General Purpose BlockRing Aggress GrindingDecals DecalsDECAL, Throttle Decals Part Name QTY RemarksDECAL, Warning DECAL, OperationPayment Terms Page HERE’S HOW to GET Help

DFG Series specifications

The Multiquip DFG Series stands out in the equipment industry due to its powerful performance and advanced technology tailored for a variety of applications. Engineered for durability and efficiency, the DFG Series is specifically designed to meet the demanding needs of contractors, making it an ideal choice for construction, demolition, and industrial projects.

One of the hallmark features of the DFG Series is its robust construction. Built with high-quality materials, these models are engineered to withstand harsh working conditions, providing longevity even in the toughest environments. The frames are designed for superior strength, while the engine components are optimized for reliability, ensuring that the equipment remains operational when it's needed the most.

In terms of performance, the DFG Series is equipped with state-of-the-art engines that deliver exceptional power while maintaining fuel efficiency. This balance reduces operating costs and minimizes environmental impact. Users can benefit from increased productivity as these machines are capable of handling heavy loads and challenging tasks with ease.

One of the standout technologies in the DFG Series is the advanced hydraulic system. This system allows for smooth and efficient operation, enabling the equipment to perform a wide range of tasks from lifting and moving materials to grading and leveling. The hydraulics are engineered for precise control, providing operators with enhanced maneuverability and flexibility on job sites.

Additionally, the DFG Series incorporates ergonomic design features aimed at enhancing user comfort and safety. The operator's cabin is spacious and well-appointed with intuitive controls, allowing for easy operation even during long hours of use. Safety is a priority, with features such as reinforced safety barriers, automatic shut-off systems, and well-placed visibility options to ensure that operators remain aware of their surroundings.

Maintenance is made simple with the DFG Series, which is designed with accessibility in mind. Key components are easily reachable, reducing downtime during servicing and ensuring that the equipment remains in peak operating condition.

Overall, the Multiquip DFG Series blends power, technology, and user-friendly design to provide a versatile solution for today's demanding construction and industrial applications. Whether tasked with heavy lifting, demolition, or ground preparation, the DFG Series remains a reliable choice that will exceed expectations.
Top Page Image Contents