Tools / Power Tools
User Manual for HiKOKI G 10SF5 Disc Grinder
Quick guide for the HiKOKI G 10SF5 Disc Grinder. Includes safety warnings, assembly instructions, grinding techniques, maintenance tips, and troubleshooting.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The HiKOKI G 10SF5 is a professional-grade disc grinder. Before operation, ensure the power source matches the tool's nameplate. Always wear eye protection and ensure the wheel guard is securely attached. Perform a trial run for at least 1 minute before daily use, or 3 minutes after changing the wheel, in a safe direction away from people.
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 plug matches the outlet. Do not abuse the cord. Use an RCD if operating in damp locations.
- Kickback: Avoid pinching or snagging the wheel. Maintain a firm grip and use the auxiliary handle if provided. Do not place hands near the rotating accessory.
- Grinding Specifics: Use only recommended wheel types and guards. Do not use worn-down wheels from larger tools.
Specifications
- Model: G 10SF5
- Power Input: 730 W
- Rated Speed: 11,000 /min
- Wheel Size: 100 mm (external diameter), 16 mm (hole diameter), 4-6 mm (thickness)
- Weight: 1.5 kg
Operation
To operate the grinder, ensure the switch is in the OFF position before plugging it in. The switch is located on the tail cover (I for ON, O for OFF). When grinding, do not apply excessive pressure; use the grinder's own weight. Tilt the wheel at an angle of 15-30 degrees to the surface. If the wheel snags, pull it backward.
Assembly and Disassembly
To assemble the depressed center wheel:
- Turn the tool upside down with the spindle facing up.
- Mount the wheel washer onto the spindle.
- Place the depressed center wheel onto the washer.
- Mount the convex side of the wheel nut onto the wheel and screw it onto the spindle.
- Push the lock pin to prevent spindle rotation and tighten the nut with the provided wrench.
Disassembly is the reverse of the assembly process.
Maintenance and Inspection
- Wheel Inspection: Check for cracks or surface defects. Replace if the external diameter wears down to 60 mm.
- Carbon Brushes: These are consumable parts. Inspect regularly and replace when worn to the limit line.
- Motor: Keep the motor winding clean and free from oil or water.
- Screws: Regularly check that all mounting screws are tight.
Manufacturer information
HiKOKI
Practical help
Common problems
Grinder will not start
Check power source, ensure the switch is in the OFF position before plugging in, and inspect carbon brushes for wear.
Excessive noise or vibration
Check if the wheel is damaged or cracked, ensure the wheel is properly clamped, and verify that all mounting screws are tight.
Motor overheating or burning out
Avoid applying heavy pressure; let the grinder's own weight do the work. Ensure air vents are clean.
Before use
- Verify power source matches the tool nameplate.
- Ensure the switch is in the OFF position before connecting to power.
- Inspect the depressed center wheel for cracks or splits.
- Ensure the wheel guard is securely attached.
- Perform a trial run for 1 minute (daily) or 3 minutes (after wheel change) in a safe direction.
- Check that the lock pin is disengaged.
Images and diagrams
- Fig 1: Shows the correct grinding angle of 15-30 degrees.
- Fig 2: Illustrates the assembly sequence for the depressed center wheel.
- Fig 3: Illustrates the assembly sequence for the sanding disc.
- Fig 4: Shows the wear limit for the carbon brushes.
Model compatibility
- Use only depressed center wheels with a permissible peripheral speed of 72 m/s or more.
- Do not use accessories that require liquid coolants.
- Do not use worn-down wheels from larger power tools.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.