Tools / Power Tools
User Manual for HiKOKI G 10SQ2, G 12SQ2, G 13SQ2 Angle Grinders
Quick guide for HiKOKI G 10SQ2, G 12SQ2, and G 13SQ2 angle grinders. Includes safety warnings, assembly instructions, operation, and maintenance procedures.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This manual provides essential safety, operation, and maintenance instructions for the HiKOKI G 10SQ2, G 12SQ2, and G 13SQ2 angle grinders. Always read the full safety warnings before use to prevent electric shock, fire, or serious injury.
Safety Warnings
- General Safety: Keep the work area clean and well-lit. Do not operate in explosive atmospheres. Keep children and bystanders away.
- Electrical Safety: Ensure the power source matches the nameplate requirements. Use an RCD (Residual Current Device) with a rated residual current of 30 mA or less.
- Personal Safety: Always wear eye protection, dust mask, and hearing protection. Do not wear loose clothing or jewelry.
- Operation Safety: Never lay the tool down until the accessory has come to a complete stop. Regularly clean air vents to prevent dust accumulation.
Applications
- Removal of casting fin and finishing of steel, bronze, and aluminum materials.
- Grinding of welded sections or sections cut by a cutting torch.
- Cutting of synthetic concrete, stone, brick, marble, and similar materials.
Mounting and Operation
- Wheel Guard: Fit and adjust the wheel guard before use.
- Side Handle: Fix the side handle securely to the tool.
- Wheel Assembly: Assemble the depressed center wheel or cutting wheel according to the specific model requirements (G10SQ2, G12SQ2, or G13SQ2).
- Switch Operation: Ensure the switch is in the OFF position before connecting to power. Push the switch to turn ON.
- Grinding: Maintain a 15°–30° angle for effective grinding. Do not apply excessive pressure.
Maintenance and Inspection
- Depressed Center Wheel: Regularly inspect for cracks and surface defects.
- Mounting Screws: Periodically check that all mounting screws are tightened.
- Carbon Brushes: Inspection and replacement must be performed ONLY by a HiKOKI Authorized Service Center.
- Supply Cord: If replacement is necessary, it must be done by a HiKOKI Authorized Service Center.
- Motor Maintenance: Regularly blow dry air through the tail cover air hole while the motor is running without load to remove accumulated dust.
Manufacturer information
HiKOKI
Practical help
Common problems
Tool does not start
Check if the switch is in the OFF position before connecting to power. Ensure the push button is disengaged by pressing it two or three times.
Excessive vibration
Check if the wheel is damaged, cracked, or improperly mounted. Run the tool at no-load for 30 seconds to check for defects.
Wheel binds or kicks back
Do not apply excessive pressure. Ensure the workpiece is properly supported. Avoid cutting too deep.
Before use
- Ensure the power source matches the nameplate requirements.
- Check that the wheel is the correct type and free of cracks.
- Ensure the wheel guard is securely attached.
- Confirm the push button is disengaged.
- Wear eye and ear protection.
Specs in practice
- Rated Voltage
- Ensure your power supply matches the voltage specified on the tool (110V-240V).
- Wheel Diameter
- The size of the grinding wheel compatible with your specific model (100mm, 115mm, or 125mm).
Images and diagrams
- Figure 1: Fitting and adjusting the wheel guard.
- Figure 3: Assembling the depressed center wheel.
- Figure 6: Switch operation.
- Figure 7: Grinding angle and method.
Model compatibility
- Use only wheel types recommended for your power tool.
- Do not use separate 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.