Forney 1905 4-1/2 Angle Grinder Owner’s Manual

Forney 1905 4-1/2 Angle Grinder

Product Information

The Forney 1905 4-1/2 Angle Grinder is an electric tool that operates on 120V and 60Hz frequency. It has a rated amperage of 9A and a variable speed of 3,000 to 11,000 RPM. The arbor size is 5/8-11, and it weighs 5.02lbs (2.28kg). The external dimensions of the product are 13-1/4 x 9 x 4 inches (340mm x 230mm x 100mm).

Product Usage Instructions

1. Before using the electric tool, check for any damage to the tool and cord. Ensure that the voltage and frequency rating of the power outlet match the requirements of the tool.
2. If there is any damage detected, contact Forney customer service.
3. Check the wheel guard of the grinding disc. Ensure that it is securely mounted, not deformed, or damaged.
4. Use only reinforced blades with an RPM equal to or higher than the tool rating. Do not use wet blades. Unplug the tool before replacing the blade.
5. Keep the work area clean and well-lit. Do not expose power tools to moisture, damp, or wet locations. Do not use power tools where there is a risk of fire or explosion.
6. Avoid body contact with earthed or grounded surfaces. Keep children away from the tool or extension cord.
7. Store idle tools in a dry, high, or locked cabinet out of reach of children.
8. Use the right tool for the job at hand. Do not force light-duty tools or attachments to do heavy-duty jobs.
9. Do not use this tool for any purpose it is not intended for.
10. Only use in a well-ventilated area. Connect dust extraction equipment if necessary.
11. Do not abuse the cord. Never carry the tool by the cord or yank the cord to disconnect it from the socket. Keep the cord away from heat, oil, chemicals, and sharp edges.
12. Secure the workpiece using clamps or a vice as needed to allow the user to operate the tool with both hands. Both hands must be used to operate the tool.

WARNING

ATTENTION!

• Before operating this electric tool, read all operating and safety instructions. It is the owner’s responsibility to ensure that all operators read and understand this manual.
• Keep this owner’s manual safety instructions for future reference.
• To protect oneself against electric shock, risk of injury and fire, basic safety measures must be observed when using electric tools!
• If you have any questions after reading this manual please contact Forney customer service (contact information on Page 8 of this manual).

TECHNICAL INFORMATION

PRIOR TO USE

1. After taking the electric tool out of the packaging, check if there is no damage to the tool and cord. Ensure that the voltage and frequency rating of the power outlet you use matches the requirements of this tool.
2. If you detect any damage after unpacking the tool, contact Forney customer service. Forney customer service contact Information is found on Page 8 of this manual.
3. Check the wheel guard of the grinding disc. The wheel guard must be securely mounted and it must be neither deformed nor damaged.
4. Use only reinforced blades with an RPM equal to or higher than the tool rating. Do not use wet blades. Unplug the tool before replacing the blade.

SAFE OPERATION

WARNING. Read all instructions before operating this product and save this manual. When using electric tools, basic safety precautions, including the following, should always be followed to reduce the risk of fire, electric shock, and personal injury:

PERSONAL PROTECTION:

• Always wear ANSI Z87.1 approved eye protection or face shield.
• Always wear NIOSH approved dusk mask or respirator.
• Always use proper gloves, ear protection, and protective clothing.
• Dress properly. Do not wear loose clothing or jewelry; they can be caught in moving parts. Rubber gloves and non-skid footwear are recommended when working outdoors. Wear protective hair covering to contain long hair.

1. Keep work area clean. Cluttered areas and benches invite injuries.
2. Consider work area environment. Do not expose power tools to moisture, IE: rain, damp or wet locations. Keep work area well lit. Do not use power tools where there is risk to cause fire or explosion.
3. Guard against electric shock. Avoid body contact with earthed or grounded surfaces (e.g. pipes, radiators, ranges, refrigerators).
4. Keep children away. Do not let non-operators touch the tool or extension cord.
5. Store idle tools. When not in use, tools should be stored in a dry, high or locked cabinet, out of reach of children.
6. Do not force the tool. It will do the job better and safer at the rate for which it was intended.
7. Use the right tool for the job. Do not force light-duty tools or attachments to do the job of a heavy-duty tool.
8. Do not use this tool for any purpose it is not intended for.
9. Only use in a well ventilated area, connect dust extraction equipment if necessary.
10. Do not abuse the cord. Never carry the tool by the cord or yank the cord to disconnect it from the socket.
11. Keep the cord away from heat, oil, chemicals, and sharp edges.
12. Secure the workpiece, using clamps or a vice as needed to allow the user to operate the tool with both hands. Both hands must be used to operate the tool.
13. Do not overreach. Keep proper footing and balance at all times.
14. Always inspect tool and cord prior to use for damage. See page 6 for specific tool care instructions. Maintain tool with care to optimize better and safer performance.
15. Disconnect tools when not in use, before servicing, and when changing accessories.
16. Avoid unintentional starting. Do not carry a plugged-in tool with a finger on the switch. Ensure switch is off when plugging in.
17. Use approved outdoor extension cords when an extended reach is required. When tool is used outdoors, only use extension cords intended for outdoor use.
18. Stay alert. Watch what you are doing, use common sense. Do not operate tool when you are tired or under the influence of alcohol, drugs, or medications.
19. Check for damaged parts. Do not use a damaged tool or damaged accessories! Check for alignment of moving parts, free running of moving parts, breakage of any part, mounting, and any other conditions that may affect its operation. A damaged component may be replaced by an authorized service center unless otherwise indicated in this instruction manual. Defective switches must be replaced by an authorized service facility. Do not use the tool if the switch does not turn it on and off.
20. Only have your tool repaired by an authorized service center. This electric tool is manufactured in accordance with all relevant safety requirements. Repairs should only be carried out by an authorized service center using original parts, otherwise this may result in considerable danger to the user.

WARNING: The use of any accessory or attachment, other than those recommended in this instruction manual, may present a risk of injury.

ADDITIONAL SAFE OPERATIONS INSTRUCTIONS

1. Verify that the speed marked on the wheel is equal to or greater than the rated speed of the grinder.
2. Ensure that the wheel dimensions are compatible with the grinder.
3. Abrasive wheels shall be stored and handled with care in accordance with manufacturer’s instructions.
4. Inspect the grinding wheel before use; do not use chipped, cracked or otherwise defective products.
5. Ensure that mounted accessories are fitted in accordance with the manufacturer’s instructions (see page 5 of this manual).
6. Ensure that the abrasive accessory is correctly mounted and tightened before use. Run the tool at no-load for 1 minute in a safe position, stop immediately if there is considerable vibration or if other defects are detected. If any defects are detected, check the machine to determine the cause.
7. Never use the tool without the supplied guard.
8. Do not use separate reducing bushings or adapters to adapt large hole abrasive wheels; for tools intended to be fitted with threaded hole wheel, ensure that the thread in the wheel is long enough to accept the spindle length.
9. Check that the workpiece is properly secured.
10. Do not use cutting wheel for side grinding.
11. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.
12. The wheel continues to rotate after the tool is switched off. Never lay the power tools down until the accessory has come to a complete stop.
13. Always keep the electric tool clean. The vent holes have to be kept free and there must not be any contaminant, as e.g. chipping in the holes.
14. Do always handle the electric tool with care and caution. Grinding discs must never get wet nor freeze.
15. Do not overload the electric tool. Do only operate it within the specified range or capacity.

THE LABEL ON YOUR TOOL MARK FOLLOWING SYMBOLS

KNOW YOUR PRODUCT

Before using the angle grinder, familiarize yourself with all the operating features and safety requirements. Use the tool and accessories only for the applications intended. All other applications are expressly ruled out.

KNOW YOUR TOOL

Disc assembly showing flange requirements

Depressed disc (thicker than 4mm)

Depressed disc (thicker than 4mm)

1. Motor housing
2. Spindle lock button
3. Wheel guard
4. Mounting points for the multi-position front handle
5. On/Off safety switch
6. Multi-position front handle
7. Pin wrench
8. Depressed disc (greater than 4mm)
9. Depressed disc (4mm or less in thickness) & Type 1 Flat Discs
10. Inner flange
11. Outer flange
12. Speed adjustment

REPLACEMENT OF DISCS AND WHEELS

REPLACEMENT OF DISCS AND WHEELS

1. Before you begin, verify that the power tool plug is compatible with the outlet. Never modify plugs or outlets in any way.

2. Disconnect the electrical tool from the power supply before replacing any accessories.

3. Press the spindle lock to block the gears from turning. Loosen the outer flange by using the pin wrench.
   CAUTION! ONLY PRESS THE SPINDLE LOCK DOWN BUTTON WHEN THE ENGINE HAS COMPLETELY STOPPED!

4. Replace the old grinding accessory. Check the new grinding disc or wheel. It must not be damaged, wet, or cracked. Install the new grinding wheel in accordance with the disc assembly flange requirements shown on page 5 of this manual.

5. After correctly installing the new grinding wheel, tighten the outer flange by depressing the spindle lock and using the pin wrench to tighten the outer flange.

6. After replacing a grinding accessory, run the angle grinder tool with no load for one minute. Pay attention to unusual sounds, vibrations, or sparks. Discontinue use immediately if the grinding accessory is running uneasily or vibrating after replacement.
   EXPERT TIP:

   • For best results when grinding move the grinder steadily in a back-and-forth motion at an angle of 15 to 30 degrees (between abrasive accessory and the workpiece) with moderate pressure. Do not press the tool too forcefully against the workpiece. If the rotational speed of the tool has dropped considerably, you must reduce the pressure on the workpiece until the full rotational speed is restored.  If the grinder stops completely or becomes jammed, the power supply must be turned off immediately.
     STOP USE IMMEDIATELY IF:

   • Insulation, cord, or cord bend protection are damaged

   • Plug or switch are damaged or only have loose contact

   • The grinding disc is rotating unevenly

   • The grinding disc is intensely sparking

7. Always keep the electric tool clean. The vent holes have to be kept free and there must net be any contaminant, as e.g. chipping in the holes.

MAINTENANCE AND REPAIR

1. This electric tool operates with a very high RPM. Therefore, it is necessary to keep the tool very clean.
2. The electric tool must be inspected each time before usage, and if applicable, repaired. The inspection must include cord, tool, plug, switch, guard, and abrasive accessories.
3. In order to avoid accidents, the electric tool has to be disconnected from the power supply before any maintenance or repair takes place.
4. Unsuitable tools and improper repairs can cause injuries; in this case the manufacturer bears no responsibility for injuries or damage and the warranty becomes void.

VARIABLE SPEEDS

• Dial#1 – 3,000 RPM
• Dial #2 – 4,700 RPM
• Dial #3 – 6,600 RPM
• Dial #4 – 9,000 RPM
• Dial #5 – 10,000 RPM
• Dial #6 – 11,000 RPM

WARRANTY

The warranty is 30 days starting with the time of delivery of the electric tool which is to be proved when claiming warranty.
Forney Industries 30 day product warranty applies.

PARTS LIST

1. Tool
2. Safety Guard
3. Side Handle
4. Pin wrench for mounting accessories
5. Instruction Manual

NOTES

WWW.FORNEYIND.COM

STOP!
PLEASE DO NOT RETURN
TO THE STORE
If you have questions, issues or concerns with your purchase, please call customer service at 1-800-521-6038
Monday through Friday from 7 a.m. – 5 p.m. (MST) or at www.forneyind.com /about-us/contact-us.
Thank you.

For the most up-to-date warranty information, visit www.forneyind.com

Forney Industries, Inc. 2057 Vermont Drive Fort Collins, CO 80525
800-521-6038
www.forneyind.com

References

• Forney Industries | Metalworking Resources
• Contact Us

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