Switch action

1. Slide switch

1

007217

CAUTION:

•Before inserting the battery cartridge into the tool, always check to see that the slide switch actuates properly and returns to the "OFF" position when the

rear of the slide switch is depressed.

To start the tool, slide the slide switch toward the "I (ON)" position. For continuous operation, press the front of the slide switch to lock it.

To stop the tool, press the rear of the slide switch, then slide it toward the "O (OFF)" position.

Indication lamp with multi function

use.

−Accidental re-start preventive function

−Even if the battery cartridge is inserted on the tool with the slide switch in the "I (ON)" position, the tool does not start. At this time, the lamp flickers slowly and this shows that the accidental re-start preventive function is at work.

−To start the tool, first slide the slide switch toward the "O (OFF)" position and then slide it toward the "I (ON)" position.

ASSEMBLY

CAUTION:

•Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool.

Installing side grip (handle)

1

007224

1. Indication lamp

007225

CAUTION:

•Always be sure that the side grip is installed securely before operation.

Indication lamps are located in two positions.

When the battery cartridge is inserted on the tool with the slide switch positioned in the "O (OFF)" position, the indication lamp flickers quickly for approximately one second. If it does not flicker so, the battery cartridge or indication lamp has broken.

− Overload protection

−

When the tool is overloaded, the indication

Screw the side grip securely on the position of the tool as shown in the figure.

Installing or removing wheel guard (For depressed center wheel , multi disc / abrasive cut-off wheel , diamond wheel)

For tool with locking screw type wheel guard

 

lamp lights up. When the load on the tool is

 

reduced, the lamp goes out.

−

If the tool continues to be overloaded and the

 

indication lamp continues to light up for

 

approximately two seconds, the tool stops.

 

This prevents the motor and its related parts

 

from being damaged.

−

In this case, to start the tool again, move the

 

slide switch to the "O (OFF)" position once

 

and then to the "I (ON)" position.

1

2 3

007218

WARNING:

1.Wheel guard

2.Bearing box

3.Screw

− Battery cartridge replacing signal

−

When

the remaining battery capacity gets

 

small,

the indicator lamp lights up during

 

operation earlier than enough capacity battery

•When using a depressed center grinding wheel/Multi-disc, flex wheel, wire wheel brush, cut-off wheel or diamond wheel, the wheel guard must be fitted on the tool so that the closed side of

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Makita BGA450, BGA402, BGA452 Assembly, Switch action, Indication lamp with multi function, Installing side grip handle
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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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