Tools / Power Tools
HiKOKI G 10SQ2, G 12SQ2, G 13SQ2 Angle Grinders
Comprehensive handling instructions for HiKOKI G 10SQ2, G 12SQ2, and G 13SQ2 angle grinders, covering safety, operation, maintenance, and technical specifications.
Table of contents
Product Overview
The HiKOKI G 10SQ2, G 12SQ2, and G 13SQ2 are professional-grade disc grinders designed for grinding welded sections, removing casting fins, and cutting materials such as synthetic concrete, stone, brick, and marble. These tools are intended for use with specific abrasive wheels and guards.
Safety Precautions
Warning: Failure to follow safety instructions can result in electric shock, fire, or serious injury. Always wear eye and ear protection. Ensure the work area is clean, well-lit, and free of flammable materials. Use a Residual Current Device (RCD) with a rated residual current of 30 mA or less.
- Always use the correct guard for the selected wheel.
- Inspect wheels for cracks or defects before use.
- Do not use damaged accessories or accessories not recommended by the manufacturer.
- Maintain a firm grip and proper balance to resist kickback forces.
- Keep the power cord clear of the spinning accessory.
- Never lay the tool down until the accessory has come to a complete stop.
Operation
Before starting, ensure the power switch is in the OFF position. Check that the push button is disengaged by pressing it two or three times. Do not overload the machine; the weight of the tool itself is usually sufficient for effective grinding. Excessive pressure reduces rotational speed and can damage the motor.
Maintenance and Inspection
Regular maintenance is essential for safety and tool longevity:
- Wheels: Regularly inspect depressed center wheels for cracks and surface defects.
- Mounting Screws: Periodically check all mounting screws and ensure they are properly tightened.
- Carbon Brushes: Inspection and replacement must be performed ONLY by a HiKOKI Authorized Service Center.
- Motor: Keep ventilation openings clear. Periodically blow dry air through the tail cover air hole while the motor is running without load to remove accumulated dust.
- Power Cord: If replacement is necessary, it must be done by an authorized service center to avoid safety hazards.
Manufacturer information
HiKOKI
Practical help
Common problems
Tool does not start or stops unexpectedly
Check if the power switch is in the ON position before plugging in. Ensure the push button is disengaged. Check for power supply issues.
Excessive vibration or noise
Stop the tool immediately. Inspect the wheel for damage, ensure it is correctly mounted, and check that all mounting screws are tight.
Kickback
Maintain a firm grip, use the auxiliary handle, and avoid pinching or snagging the wheel in the workpiece. Do not apply excessive pressure.
Before use
- Ensure the power source matches the tool's nameplate requirements.
- Verify the power switch is in the OFF position.
- Inspect the grinding wheel for cracks, chips, or defects.
- Ensure the wheel guard is securely attached and correctly positioned.
- Confirm the wheel is the correct type and size for the grinder.
- Wear appropriate personal protective equipment (eye protection, dust mask, gloves).
Specs in practice
- Rated Speed (n)
- 10500 /min. Do not use accessories with a lower rated speed.
- Wheel Outer Diameter (D)
- 100mm (G10SQ2), 115mm (G12SQ2), 125mm (G13SQ2).
- Power Input (P)
- 900 W.
Model compatibility
- Use only wheel types recommended for the specific model.
- When using a cutting wheel, the standard guard must be replaced with a wheel guard with side guard (sold separately).
- Do not use reducing bushings or adapters for large-hole wheels.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.