Service

28.Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

29.Follow instruction for lubricating and changing accessories.

30.Keep handles dry, clean and free from oil and grease.

GEB059-2

CORDLESS GRINDER SAFETY WARNINGS

Safety Warnings Common for Grinding, Sanding, Wire Brushing, or Abrasive Cutting-Off Operations:

1.This power tool is intended to function as a grinder, sander, wire brush or cut-off tool. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

2.Operations such as polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.

3.Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.

4.The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.

5.The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.

6.The arbour size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

7.Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory,

position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.

8. Wear personal protective equipment.

Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations . The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

9.Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

10.Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and shock the operator.

11.Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

12.Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.

13.Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

14.Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

15.Do not operate the power tool near flammable materials. Sparks could ignite these materials.

16.Do not use accessories that require liquid coolants. Using water or other liquid coolants may

result in electrocution or shock.

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the

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Makita BGA452, BGA450, BGA402 instruction manual Cordless Grinder Safety Warnings, Kickback and Related Warnings
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BGA452, BGA450, BGA402 specifications

The Makita BGA402, BGA450, and BGA452 are a trio of powerful cordless angle grinders designed for both professional tradespeople and DIY enthusiasts. These models offer a blend of performance and versatility that caters to a wide range of applications, including cutting, grinding, and polishing. Each model comes with a unique set of features and technologies that enhance user experience and efficiency.

The BGA402 is powered by a robust 18V lithium-ion battery, providing the endurance required for demanding tasks. It boasts a compact design, making it easy to maneuver in tight spaces. One of its standout features is the electronic brake that halts the rotation of the wheel within seconds of releasing the trigger, significantly improving safety. Additionally, its rubberized grip offers comfort during extended use, reducing fatigue. This model also features a spindle lock for easy wheel changes, saving valuable time on the job site.

The BGA450 takes it a step further with its increased power and performance. With a no-load speed of 10,000 RPM, it is ideal for heavy-duty applications. This model incorporates Makita's Anti-Restart Function, which prevents accidental start-up after a power interruption, providing added safety. The BGA450 also features a tool-less wheel guard adjustment, allowing users to quickly adapt the guard position based on their task. Its lightweight design contributes to user-friendly operation, ensuring that professionals can work efficiently without strain.

On the other hand, the BGA452 combines the best attributes of its predecessors while introducing enhanced runtime and efficiency. Equipped with a more efficient brushless motor, this model delivers longer use between charges, ideal for high-demand projects. The onboard LED indicator helps keep track of battery status, ensuring users can plan their work without unexpected interruptions. With a two-position side handle, the BGA452 offers versatility for left and right-handed users, maximizing comfort and control during operation.

In summary, Makita's BGA402, BGA450, and BGA452 angle grinders are engineered to provide superior performance, safety, and ease of use. Their innovative technologies, such as electronic brakes, anti-restart functions, and lightweight designs, position them as top choices in the cordless grinder market. Whether for professional use or personal projects, these models deliver the power and efficiency that users demand, making them valuable tools in any toolkit.
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