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Hikoki G 18ST, G 23ST, G 18SW2, G 23SW2 Angle Grinder User Manual

Quick guide for the Hikoki G 18ST, G 23ST, G 18SW2, and G 23SW2 angle grinders. Includes safety warnings, mounting instructions, maintenance, and technical specifications.

Table of contents

Quick guide from the manual

This manual provides essential safety and operating instructions for the Hikoki G 18ST, G 23ST, G 18SW2, and G 23SW2 angle grinders. Always read all safety warnings before use to prevent electric shock, fire, or serious injury.

Device Description

These tools are designed for grinding and cutting metal, bronze, and aluminum materials. They feature a spindle lock, adjustable guard, and side handle for improved control.

Mounting and Operation

  1. Fitting the wheel guard: Securely attach and adjust the guard (Fig. 1).
  2. Fixing the side handle: Attach the handle for better control (Fig. 2).
  3. Assembling wheels: Follow specific instructions for mounting depressed center wheels (Fig. 3) or cutting wheels (Fig. 4).
  4. Switch operation: Use the switch to turn the tool on and off (Fig. 5-a/5-b).

Maintenance and Inspection

  • Carbon brushes: Regularly inspect and replace worn carbon brushes (Fig. 7).
  • Mounting screws: Periodically check that all screws are properly tightened.
  • 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 Precautions

  • Always wear eye and ear protection.
  • Do not overload the machine; the weight of the tool is usually sufficient for effective grinding.
  • Ensure the workpiece is properly supported.
  • Keep ventilation openings clear, especially in dusty conditions.
  • Disconnect the power source when the machine is not in use.

Manufacturer information

HiKOKI

Brand profile

Practical help

Common problems

Tool does not start

Check if the power switch is in the OFF position before plugging in. Ensure the power source conforms to the nameplate requirements.

Excessive vibration

Stop the tool immediately. Check if the wheel is correctly mounted and tightened, or if the wheel is damaged.

Motor trouble

Inspect carbon brushes for wear and replace if they are near the 'wear limit'.

Before use

  • Check that the speed marked on the wheel is equal to or greater than the rated speed of the grinder.
  • Ensure the wheel dimensions are compatible with the grinder.
  • Inspect the grinding wheel for chips, cracks, or defects.
  • Confirm the spindle lock is disengaged by pressing the button 2-3 times.
  • Ensure the work piece is properly supported.
  • Always wear eye and ear protection.

Specs in practice

P (Power input)
The electrical power required by the tool (2000W or 2200W depending on model).
n0 (No-load speed)
The rotational speed of the tool when not under load (8500 or 6600 min-1).
D (Wheel outer diameter)
The maximum diameter of the grinding wheel (180mm or 230mm).

Model compatibility

  • Use only wheel types recommended for your specific model.
  • Do not use cutting-off wheels for side grinding.
  • Ensure the thread of a threaded-hole 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.