Tools / Power Tools
HiKOKI G 18SE4 and G 23SC4 Disc Grinder User Manual
Quick guide for the HiKOKI G 18SE4 and G 23SC4 disc grinders, covering safety warnings, assembly, operation, maintenance, and technical specifications.
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This manual provides essential safety and operational instructions for the HiKOKI G 18SE4 and G 23SC4 disc grinders. Always read the safety warnings before use to prevent electric shock, fire, or serious injury.
Device Description
The G 18SE4 and G 23SC4 are high-performance disc grinders designed for removing casting fins, finishing various materials (steel, bronze, aluminum), grinding welded sections, and cutting synthetic concrete, stone, brick, and marble.
Mounting and Operation
Follow these steps for proper setup:
- Wheel Guard: Fit and adjust the guard (Fig. 1).
- Side Handle: Fix the side handle securely (Fig. 2).
- Wheels: Assemble the depressed center wheel (Fig. 3), cutting wheel (Fig. 4), or diamond wheel (Fig. 5) according to the specific application.
- Switch: Operate the switch (Fig. 6) to turn the tool ON/OFF.
- Grinding: Maintain the correct grinding angle (Fig. 7).
Maintenance and Inspection
- Wheel Inspection: Regularly check the depressed center wheel for cracks or surface defects.
- Mounting Screws: Periodically inspect all screws and ensure they are tight.
- Carbon Brushes: These are consumable parts. Replace them when worn to or near the "wear limit" (Fig. 8). Ensure they are clean and slide freely.
- Motor Maintenance: Keep the motor winding clean and free from oil or water.
- Supply Cord: If replacement is necessary, it must be performed by an authorized HiKOKI Service Center.
Safety Warnings
General: Keep the work area clean and well-lit. Use personal protective equipment (eye protection, dust mask, hearing protection). Ensure the switch is OFF before connecting to power.
Grinding/Cutting: Use only recommended wheel types and guards. Do not use damaged accessories. Maintain a firm grip and be prepared for kickback. Never place hands near the rotating accessory.
Technical Specifications
Refer to the table on page 138 for detailed specifications, including rated voltage, power input, and wheel dimensions.
Manufacturer information
HiKOKI
Practical help
Common problems
Tool does not start
Ensure the power switch is in the OFF position before connecting to power. Check if the push button is disengaged.
Excessive vibration
Check if the wheel is correctly mounted and tightened. Inspect the wheel for damage or cracks.
Motor trouble
Inspect carbon brushes for wear. Replace if they are at or near the wear limit.
Before use
- Read all safety warnings and instructions.
- 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.
- Always wear eye protection.
Specs in practice
- Rated voltage
- The voltage required for the tool to operate (110V, 220V, 230V, or 240V).
Images and diagrams
- Fig. 1: Fitting and adjusting the wheel guard.
- Fig. 3: Assembling the depressed center wheel.
- Fig. 6: Switch operation.
- Fig. 8: Replacing carbon brushes.
Model compatibility
- Use only wheel types recommended for your specific power tool.
- Do not use worn-down wheels from larger power tools.
- Ensure the thread of the wheel is long enough to accept the spindle length.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.