Related Manuals for Alpha ECG-125
Summary of Contents for Alpha ECG-125
- Page 1 MANUAL Alpha Ecogrinder ® Instruction Manual VERSION 5 Part No: ECG-125 ECG-225 103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114 www.alpha-tools.com...
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Page 2: Table Of Contents
TABLE OF CONTENTS Ecogrinder Overview ....................4 Accessories ......................5 Introduction ....................... 6 About The Symbols..................... 6 Electrical Symbols ....................6 General Safety Rules ....................7 Work Area ......................7 Electrical Safety ....................7 Personal Safety ....................7 Tool Use and Care ....................8 Service ......................... - Page 3 Inspecting and Cleaning The Fan Belts and Pulleys ........32 Reinstalling The Inner Fan Belt................ 32 Removal Of The Outer Fan Belt ............... 33 Reinstalling The Outer Fan Belt ............... 34 Alpha Ecogrinder Motor Schematic (ECG-125) ..........35 ® Alpha Ecogrinder Attachment Schematic ............36 ®...
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Page 4: Ecogrinder Overview
ECOGRINDER OVERVIEW Power Switch Lock Aux Handle Fan Case Power Switch Fan Belt Cover Slide Cover Knob Spindle Locking Pin Edge Grinding Slide Cover Protective Grinding Wheel Cover Dust Brush Figure-1 SPECIFICATIONS Power Supply .............Single-Phase AC, 50/60 Hz Rating ....................110/220 Volts Amperage ....................10.25/5.1 Power ...................... -
Page 5: Accessories
ACCESSORIES OPTIONAL ACCESSORY Figure-2 COMPONENTS: Dust Bag (Part No. 133544) Dust Hose (Part No. 133533) Dust Gate with Anti-Back-Flow Flap (Part Nos. 133530 & 133531) Spring Loaded Flange Assembly (Part Nos. 801375, 801376, 801377, 801378 & 801379) Carbon Brush Set (Part No. -
Page 6: Introduction
INTRODUCTION Thank you for purchasing the Alpha Ecogrinder. Please read this instruction manual ® thoroughly to ensure safety and correct use of this tool. Keep this manual in a place where operators can access it easily whenever necessary. ABOUT THE SYMBOLS According t o t he h azard l evel, a ll s afety n otes i n t his m anual a re c lassified i nto “... -
Page 7: General Safety Rules
CAUTION! The following are important notes for products, operation, and maintenance applicable to this polisher. GENERAL SAFETY RULES WORK AREA • Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. • Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools may create sparks which may ignite the dust or fumes. -
Page 8: Tool Use And Care
• Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your finger on the switch or plugging in tools that have the switch on, invites accidents. • Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that is left attached to a rotating part of the tool may result in personal injury. •... -
Page 9: Service
SERVICE • Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury. • When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthorized part or failure to follow Maintenance Instructions may create a risk of electric shock or injury. SPECIFIC SAFETY RULES •... -
Page 10: Use Proper Extension Cords
• Drugs, alcohol, medication, Do not operate tool while under the influence of drugs, alcohol, or any medication. Follow this rule will reduce the risk of electric shock, fire, or serious personal injury. • Keep hands away from polishing area. Follow this rule will reduce the risk of cuts, scrapes, or serious personal injury. • Save these instruction. Refer to them frequently and use them to instruct others who may use this tool. -
Page 11: Additional Precautions For Using The Ecogrinder
ADDITIONAL PRECAUTIONS FOR USING THE ECOGRINDER In addition to the general safety notes described on the preceding pages, please read and observe the following precautionary notes before using the Ecogrinder. DANGER! SAFETY ADVICE • Please note safety instructions on Page 3-5. • Do not pierce the motor housing as this could damage the double insulation. • Always remove plug from the outlet before making any changes to the settings or performing maintenance. •... -
Page 12: How To Grind
HOW TO GRIND WARNING! During operation, be sure to wear safety glasses and hearing protection. Some dust created when using this grinder contains chemicals known to cause cancer, birth defects or other reproductive harm. Some example of these chemicals are: Lead based paints Crystalline silica found in cement, bricks and other masonry products Arsenic and chromium coming from pressure treated wood... -
Page 13: Ecogrinder Operation
Hold the unit tightly to prevent it from walking, and remove the high spots in the work surface from the top down. This grinder is designed to be used dry, if the surface is wet the dust will not be able to pass through the fan and a breakdown will result. -
Page 14: Circuit Breaker
CIRCUIT BREAKER CAUTION! If the tool stops during operation you need to switch the unit off before resetting the circuit breaker. Resetting the circuit breaker with the trigger lock on can cause an accident. Note: If the circuit breaker stops the tool repeatedly, this could be an indication that excessive pressure is being applied to the tool, slowing the motor and causing it to overheat. - Page 15 2. Make sure the ON/OFF switch is off. – If you plug in the power supply cord without realizing that the switch is ON, the machine will start and may cause an accident. Make sure the on/off switch trigger is out and the locking button is not engaged. 3.
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Page 16: About Double Insulation
ABOUT DOUBLE INSULATION This machine is designed with double insulation. Two insulations are used between the conductor and the outer body of the machine. An electric machine with the double insulation highly i mproves s afety f rom e lectric s hocks. D o n ot a ttach o r r eplace u nspecified p arts a nd do not assemble incorrectly. -
Page 17: Dust Hose And Bag Installation
Edge Grinding / 1mm Wall Clearance With the slide cover as- sembly open, the unit can now be pushed up against the wall allowing the hous- ing to ride along the edge. (See Figure 6: Slide Cover Assembly Open). With the slide cover assembly open, extra care should be taken to h old t he u nit fl at t o p revent... - Page 18 Hook & Loop Strap Dust Bag Holder and Dust Bag With the dust hose attached to the tool, you can now install the dust bag onto the dust bag holder. Dust Bag Hose Shoulder Figure-10 Dust Bag Holder Raised Lip Hose Fitting with Hook &...
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Page 19: Ecogrinder Maintenance
BEARINGS AND GEARS To minimize your tool’s down time and expensive tool repairs, it is recommended to send the tool back to an Alpha Repair Center after about 300 to 400 hours of operation or every ®... -
Page 20: Replacing And Checking The Carbon Brushes
REPLACING AND CHECKING THE CARBON BRUSHES In order to keep your tool running correctly, you need to check your carbon brushes after every one hundred hours of use. Carbon brushes wear out over time based on the grinder’s usage. If a carbon brush is worn out, it may cause the motor to malfunction or fail to run. The carbon brushes should be replaced before the twisted wire reaches the bottom of the slot. - Page 21 The carbon brushes in this grinder are located under the rear handle. WARNING! Replacing the carbon brushes in this unit with non-Alpha parts could damage the unit, ® and will void the warranty.
- Page 22 The carbon brush can be removed from the holder by pulling back the carbon brush spring and moving it to the side as shown in the photo on the left below. After reas- sembly, press the carbon brush in and out of the holder to make sure it moves freely and the twisted wire is not hitting the wire terminal or spring (see photo below on right).
- Page 23 To clean the commutator, press the commutator cleaning stone against the commutator and rotate the armature by turning the spindle shaft by hand. Continue for a minute or until the commutator is clean and shiny. Cleaning the Commutator Figure-20 10. Reconnect the power wire, insuring that the wire path is correct (See figure 15), Re- install the carbon brush holder into the slot on the motor housing and slide in until the screw tab hits the stop, then install the screw using light pressure to prevent it from stripping.
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Page 24: Grinding Wheel Inspection, Removal, And Installation
Adapter Wheel Figure-22 NOTE: The Alpha 2 6mm a rbor g rinding w heel, d rive p late a dapter a nd s pring l oaded fl ange ® assembly are designed and engineered to work together. This design eliminates the... -
Page 25: Checking The Grinding Wheel For Replacement
CHECKING THE GRINDING WHEEL FOR REPLACEMENT 1. The grinding wheel and spring loaded flange are designed to be self-adjusting. The grinding wheel should float on the flange nut allowing it to adjust to the height of the brush assembly. The grinding wheel should be replaced when the diamond segments are worn down close to the hub and there are no visible diamond chips. You also need to check the grinding wheel and diamond segments for chips, cracks in the welds, or missing segments. -
Page 26: Removing The Grinding Wheel
REMOVING THE GRINDING WHEEL While pressing in on the spindle lock button, turn the grinding wheel by hand until the lock can fully engage. Spindle Lock Button Figure-25 2. With t he l ock f ully e ngaged, t urn t he fl ange b olt c ounter c lockwise t o l oosen t he fl ange bolt with the flange wrench. -
Page 27: Replacing The Grinding Wheel
REPLACING THE GRINDING WHEEL To replace the grinding wheel follow the steps for removing the grinding wheel (see page 26). A fter the grinding wheel is removed, you need to remove the three flat-head screws holding the drive plate adapter onto the diamond grinding wheel. Note: When you purchase a replacement Grinding Wheel (Part # DSQ0500), it does not come with the Drive Plate Adapter (Part # 801381) or Flat Head Screws (Part # 801382). -
Page 28: Installing The Spring Loaded Flange Assembly
INSTALLING THE SPRING LOADED FLANGE ASSEMBLY NOTE: T his u nit c omes e quipped w ith a s elf-adjusting s pring l oaded fl ange a ssembly. T his flange assembly allows the grinding wheel to adjust as it wears to keep positive contact with the work. 1. With t he i nner f an b elt a nd c over i nstalled, y ou c an n ow i nstall t he s pring l oaded fl ange and grinding wheel. -
Page 29: Installing The Grinding Wheel
INSTALLING THE GRINDING WHEEL 1. Place the grinding wheel and flange bolt on the spindle. Flange Bolt Grinding Wheel and Flange Bolt Grinding Wheel Figure-30 Spindle Lock Button 2. While pressing in on the spindle lock button, turn the grinding wheel by hand until the lock is fully en- gaged. -
Page 30: Fan Belt Removal And Replacement
FAN BELT REMOVAL AND REPLACEMENT The Ecogrinder incorporates two drive fan belts (an inner and an outer) to power the fan assembly. If the unit is not removing the dust, you will need to inspect the fan belts, fan assembly, and dust bag to find the cause of the problem. NOTE: This Ecogrinder makes use of a flat fan belt and pulley system that is self-centering due to the barrel shape of the pulleys. -
Page 31: Inner Fan Belt Removal
INNER FAN BELT REMOVAL DANGER! Be sure to unplug the power cord from the outlet before assembling or disassembling the tool. Accidental starting of the motor may cause bodily injury. 1. Remove the grinding wheel and flange assembly (See section for grinding wheel and flange installation and removal) Remove the Phillips screw used to secure the inner fan belt cover. Remove the inner fan belt cover to expose the inner fan belts and pulleys. -
Page 32: Inspecting And Cleaning The Fan Belts And Pulleys
INSPECTING AND CLEANING THE FAN BELTS AND PULLEYS With the fan belt removed, you can now check and clean it using a mild detergent. The fan belt will need to be replaced if it is frayed or showing signs of wear. The pulley should also be cleaned with a mild detergent. -
Page 33: Removal Of The Outer Fan Belt
REMOVAL OF THE OUTER FAN BELT Remove the knob bolt and outer cover to gain access to the fan belt. Outer Fan Belt Cover Knob Bolt Outer Fan Belt Cover Figure-39 2. With the outer cover removed, grab the fan belt with your thumb and index finger and rotate while pulling upward. It could take two or three turns to remove the fan belt. Outer Fan Belt Removal Figure-40 With the fan belt removed you can now check and clean it using a mild detergent. -
Page 34: Reinstalling The Outer Fan Belt
REINSTALLING THE OUTER FAN BELT To reinstall the outer fan belt you need to put the belt onto one pulley and guide it over the other pulley with your finger while turning the fan belt. Outer Fan Belt Installation Figure-41 Once the fan belt is on both pulleys, keep turning and the belt should center itself. Reinstall the outer cover and tighten the knob screw. -
Page 35: Alpha ® Ecogrinder Motor Schematic (Ecg-125)
ALPHA ECOGRINDER MOTOR SCHEMATIC (ECG-125) ® 10/18/2010... -
Page 36: Alpha ® Ecogrinder Attachment Schematic
ALPHA ECOGRINDER ATTACHMENT SCHEMATIC ® 10/18/2010... -
Page 37: Alpha Ecogrinder Parts List (Ecg-125)
ALPHA ECOGRINDER PARTS LIST (ECG-125) ® DRAWING PART DESCRIPTION QUANTITY 801373/801374 Breaker Assembly (w/case) 110V/220V 801324/801350 Power Cord 110V/220V 801359 Screw M8 x 15 801360 Lock Washer M8 801355 Handle Bracket -Left 801358 Handle Cover 801356 Handle Bracket -Right 801357... - Page 38 ALPHA ECOGRINDER PARTS LIST (ECG-125) ® DRAWING PART DESCRIPTION QUANTITY 801034 Insulation Pipe 4mm x 55mm (white) 801311 Insulation Pipe 5mm x 55mm (white) 801026 Self-Tapping Screw 4.8 x 63 801024 Air Bridge 133530 Anti-Back-Flow Flap 133531 Dust Gate 133533...
- Page 39 ALPHA ECOGRINDER PARTS LIST (ECG-125) ® DRAWING PART DESCRIPTION QUANTITY Brush Ring–Short 801365 (press fit installed by service center) 801345 Slide Cover (w/ brush) 801341 Screw M5 x 35 801340 Retainer Clip 135251 Screw M4 x 6 801337 Bottom Pulley 801602 Fan Belt Set (2 pc set)
- Page 40 ALPHA ECOGRINDER PARTS LIST (ECG-125) ® DRAWING PART DESCRIPTION QUANTITY DRAWING NO. PART NO. DESCRIPTION QUANTITY 130434 Pin Spanner Wrench 34 mm 801380 Wrench 24mm 801375 Spring Retainer -Top 801376 Flange Nut 801377 Spring 801378 Spring Retainer -Bottom 801381 Drive Plate Adapter...
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Page 41: Services And Warranty Information
SERVICES AND WARRANTY INFORMATION LOANER PROGRAM Loaner tools can be issued to temporarily replace a tool that is being returned to Alpha ® for repair. If more than one tool is being returned for repair, the number of loaner tools provided will be based on availability. -
Page 42: Alpha ® Tool Repair Service
ALPHA TOOL REPAIR SERVICE ® For more information concerning Alpha tool repair service, please contact the ® Alpha regional repair centers listed below: ® COMPANY HEADQUARTERS: Alpha Professional Tools ® 103 Bauer Drive Oakland, NJ 07436 Hours of Operation: 8:30 a.m. – 5:00 p.m. EST... -
Page 43: Ec Declaration Of Conformity
EC DECLARATION OF CONFORMITY Name of Manufacturer: Alpha Professional Tools ® Address of Manufacturer: 103 Bauer Drive Oakland, NJ 07436 Herewith declares that: ELECTRIC HAND TOOL: “Ecogrinder” Make: Alpha Professional Tools ® Type: ECG-125/ECG-225 -Does comply with the provisions of the Low Voltage Directive 73/23EEC amended by 93/68 EEC and Machinery Directive 98/37/EC. -
Page 44: Appendix A - Manual Height Adjustment Flange Assembly
APPENDIX A MANUAL HEIGHT ADJUSTMENT FLANGE ASSEMBLY For those end-users wanting to run a different grinding wheel on their Ecogrinder, we make a manual height adjustment flange assembly. Manual Height Adjustment Flange Assembly Figure-42 Flange Bottom Lock Adjust Adjust Pulley Screw Follow the steps to remove the grinding wheel. Once the grinding wheel is removed, you can now start the installation and adjustment of the manual height adjustment flange. - Page 45 3. Place the grinding wheel on top of the adjust screw and check the air gap between the top of the grinding wheel and the brush assembly. The grinding wheel should be adjusted so there is a 1mm air gap between the ruler and the brush ring. Test by turning the wheel to make sure the ruler is floating on top of the brush.
- Page 46 5. Once t he c orrect air g ap i s s et, r emove t he m anual h eight a djustment fl ange a ssembly. While holding the adjust screw and adjust nut in place, turn the locking nut towards the adjust nut until they meet.
- Page 47 Note: Serial & Model Number must be included for proper registration. (800) 648-7229 Register online at: www.alpha-tools.com/productregistration.aspx Mail or Fax to: Alpha Professional Tools ® 103 Bauer Drive, Oakland, NJ 07436 Fax: 800-286-0114 Photocopy of product registration form will be accepted.
- Page 48 103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114 www.alpha-tools.com 9/22/2010 Copyright © 2008 Alpha Professional Tools. All rights reserved.
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