The document describes the EDCO Magna-Trap Dual-Disc Floor Grinders, specifically models 2EC-NG and 2GC-NG. These machines are designed for commercial use in surface preparation, primarily for grinding floors.
Function Description:
The EDCO Magna-Trap Dual-Disc Floor Grinders are robust machines engineered for efficient and effective floor grinding. They utilize a dual-disc system with Magna-Trap™ technology, which allows for quick and easy attachment and removal of various grinding accessories, including diamond discs. The primary function of these grinders is to prepare concrete and other floor surfaces by removing coatings, leveling uneven areas, and smoothing surfaces. The dual-disc design ensures balanced operation and a wide grinding path, enhancing productivity. Depending on the model, the grinders are powered by either an electric motor or a gasoline engine, offering versatility for different work environments and power availability. The electric models are suitable for indoor use where emissions are a concern, while the gasoline model provides greater mobility and power for outdoor or well-ventilated areas.
Important Technical Specifications:
- Models Covered: 2EC-NG (Electric) and 2GC-NG (Gasoline).
- Power Options:
- 2EC-NG-1.5: BALDOR ELECTRIC MOTOR 1.5HP, 60Hz, 1-PHASE, 115/230V.
- 2EC-NG-2B/50: BALDOR ELECTRIC MOTOR 2HP, 50Hz, 1-PHASE, 110/220V.
- 2EC-NG-3B: BALDOR ELECTRIC MOTOR 3HP, 60Hz, 1-PHASE, 230V.
- 2GC-NG-11H: HONDA GASOLINE ENGINE MODEL GXV340.
- Disc Assembly: 10" Magna-Trap™ Disc Assembly (Part # 86391A). This assembly includes a hub, magnets, and various fasteners.
- Optional Diamond Disc Adapter: Allows for the use of 10" bolt-on diamond discs (Part # 77618).
- Frame and Components: The grinder features a durable outer frame, an engine/motor deck, and a handle bar for operator control. It includes wheels for mobility and lifting hook brackets for transport.
- Gear Case: Houses the internal gears and shafts that drive the grinding discs. The disc orientation is designed for opposite rotation to ensure efficient grinding and self-cleaning.
- Vacuum Port: Equipped with a vacuum port panel (Part # 77614) and a 2" ID flexible hose (Part # 77113) for dust control, crucial for maintaining a clean and safe work environment.
- Water Hook-Up: Includes a water valve (Part # 10711) and hoses for wet grinding applications, which can help suppress dust and cool grinding tools.
- Weight Blocks: Optional 40 lb. weight blocks (Part # 77506) can be added to increase grinding pressure for more aggressive material removal.
Usage Features:
- Dual-Disc System: The core feature is the dual-disc design, which provides a large grinding footprint and balanced operation, reducing operator fatigue and improving grinding efficiency. The discs rotate in opposite directions, allowing them to pass each other at the center in an alternating sequence, which is key to effective material removal.
- Magna-Trap™ Technology: This innovative system facilitates quick and tool-free attachment and detachment of grinding accessories. This significantly reduces downtime associated with changing tools, allowing operators to switch between different grits or types of discs rapidly.
- Versatile Power Options: The availability of both electric and gasoline models caters to diverse job site requirements. Electric models are ideal for indoor applications where noise and exhaust fumes must be minimized, while gasoline models offer powerful performance and portability for outdoor or remote sites.
- Adjustable Handle Bar: The handle bar (Part # 77607) is designed for ergonomic operation, allowing operators to adjust it for comfortable use and control.
- Dust Control System: Integrated vacuum port and flexible hose enable connection to an industrial-style vacuum system, essential for capturing airborne dust particles, especially when dry grinding. This feature is critical for operator safety and compliance with environmental regulations.
- Wet Grinding Capability: The water hook-up system allows for wet grinding, which helps to cool the grinding tools, extend their lifespan, and further reduce airborne dust, making it suitable for certain applications and materials.
- Optional Diamond Disc Adapter: This adapter expands the machine's versatility, allowing it to use bolt-on diamond discs for specific grinding tasks, providing flexibility in tooling choices.
- Safety Features: The manual emphasizes the importance of reading and understanding the operator's instruction manual, wearing personal protection equipment (PPE) including hard hats, safety shoes, hearing protection, and eye protection. It also highlights warnings regarding gasoline/propane powered equipment (flammability, poisonous exhaust) and electrical powered equipment (grounding, GFI outlets, water presence).
Maintenance Features:
- Accessible Components: The design allows for relatively easy access to key components for maintenance. For instance, the gear case assembly (Item 33 in Illustration 1) is a modular unit, and its internal parts are detailed for servicing.
- Lubrication Points: The gear case includes grease fittings (Part # 10960) for proper lubrication, which is vital for the longevity of bearings and gears. Regular greasing is a standard maintenance procedure.
- Electrical Wiring Diagrams: Detailed wiring diagrams are provided for each electric motor model (L3514TM, L3605T-50, L3609TM) and the Honda GXV340 engine. These diagrams are crucial for troubleshooting electrical issues and performing repairs.
- Parts List: Comprehensive parts lists with item numbers, part numbers, descriptions, and quantities are provided for all major groupings (Frame, Locking Lever, Skirt/Vacuum/Water, Gear Case, Disc Assembly, Motor/Belt Drive). This facilitates accurate identification and ordering of replacement parts.
- Motor Maintenance: Specific replacement parts for the Baldor electric motors, such as capacitors and reset buttons, are listed, indicating that these are serviceable components.
- Belt Drive System: The belt drive grouping illustrations and parts lists detail components like sheaves, belts, and keys, allowing for inspection, adjustment, and replacement of these wear items.
- Engine Maintenance (Gasoline Model): The Honda GXV340 engine grouping includes parts for the choke kit, throttle cable, and oil drain kit, indicating standard engine maintenance considerations. The wiring diagram for the Honda engine also aids in troubleshooting.
- Disc Replacement: The Magna-Trap™ system simplifies disc changes, making routine replacement of grinding tools a quick and straightforward process.
- Safety Warnings: The manual includes extensive safety messages covering general instructions, gasoline/propane powered equipment, electrical powered equipment, and dust warnings. These sections guide operators and maintenance personnel on safe practices, emphasizing the importance of proper grounding, ventilation, and PPE.
- Troubleshooting Support: The detailed illustrations and parts lists, combined with wiring diagrams, serve as valuable resources for diagnosing issues and performing repairs, either by trained personnel or with the assistance of EDCO's support resources.
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