User Manual for HiKOKI G 12SWA / G 13SWA Angle Grinder
Quick guide for the HiKOKI G 12SWA and G 13SWA angle grinders. Includes safety warnings, mounting instructions, operation, maintenance, and technical specifications.
Table of contents
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This manual provides essential instructions for the safe and effective operation of the HiKOKI G 12SWA and G 13SWA angle grinders. Always read the full safety warnings before use.
Safety Warnings
General Power Tool Safety: Keep your work area clean and well-lit. Do not operate in explosive atmospheres. Always wear personal protective equipment, including eye protection, dust masks, and hearing protection. Ensure the switch is in the OFF position before connecting to a power source.
Specific Grinding and Cutting Safety: Use only recommended wheel types and the appropriate guard. Ensure the wheel speed rating is equal to or greater than the grinder's rated speed. Never use damaged accessories. Always maintain a firm grip and use the auxiliary handle to control kickback.
Names of Parts
- Toolless wheel guard
- Side handle
- Depressed center wheel
- Spindle
- Switch
- Push button
Mounting and Operation
Refer to the following table for assembly and operation steps:




- Fitting and adjusting the wheel guard: Figure 1
- Fixing the side handle: Figure 2
- Assembling depressed center wheel: Figure 3
- Assembling cutting wheel: Figure 4
- Assembling diamond wheel: Figure 5
- Switch operation: Figure 6
- Grinding angle and method: Figure 7
Note: If the 0 voltage re-start protection feature is activated, return the power switch to the OFF position and wait for 1 second or more before restarting.
Maintenance and Inspection
Regular maintenance is crucial for safety and tool longevity:
- Inspecting the depressed center wheel: Ensure it is free of cracks and surface defects.
- Inspecting mounting screws: Regularly check that all screws are properly tightened.
- Inspecting carbon brushes: Inspection and replacement should only be performed by a HiKOKI Authorized Service Center.
- Maintenance of the motor: Regularly blow dry air through the tail cover air hole while the motor is running without load to remove accumulated dust and dirt.
Technical Specifications
The machine features 0 Voltage Re-start Protection, which prevents the tool from restarting after a temporary power cut during operation. Refer to the product nameplate for specific power requirements.
Manufacturer information
HiKOKI
Practical help
Common problems
Check if the wheel is correctly mounted and tightened. Run the tool at no-load for 30 seconds to check for defects.
Ensure the power switch is in the OFF position before plugging in. Check the power source and extension cord.
Return the power switch to the OFF position and wait for 1 second or more before restarting.
Before use
- Check that the wheel speed rating is equal to or greater than the grinder's rated speed.
- Ensure the wheel is free of cracks and surface defects.
- Confirm the push button is disengaged.
- Ensure the guard is securely attached.
- Check that the power source conforms to the nameplate requirements.
Specs in practice
- Rated Voltage
- Ensure your power supply matches the tool's requirements.
- 0 Voltage Re-start Protection
- Prevents the tool from restarting automatically after a power cut.
Images and diagrams
- Fig 1: Fitting and adjusting the wheel guard.
- Fig 2: Fixing the side handle.
- Fig 3: Assembling the depressed center wheel.
- Fig 4: Assembling the cutting wheel.
- Fig 6: Switch operation.
Model compatibility
- Use only wheel types recommended for this power tool.
- Do not use worn-down wheels from larger power tools.
- Ensure the wheel hole diameter matches the flange diameter.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.