WARNING:

MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

USD301-1

Symbols

The followings show the symbols used for tool.

volts

direct current

no load speed

revolutions or reciprocation per minute

ENC007-2

IMPORTANT SAFETY INSTRUCTIONS

FOR BATTERY CARTRIDGE

Tips for maintaining maximum battery life

1.Charge the battery cartridge before completely discharged.

Always stop tool operation and charge the battery cartridge when you notice less tool power.

2.Never recharge a fully charged battery cartridge.

Overcharging shortens the battery service life.

3.Charge the battery cartridge with room temperature at 10 C - 40 C (50 F - 104 F). Let a hot battery cartridge cool down before charging it.

FUNCTIONAL DESCRIPTION

CAUTION:

Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool.

Installing or removing battery cartridge

1.

Before using battery cartridge, read all

 

instructions and cautionary markings on (1)

 

battery charger, (2) battery, and (3) product

 

using battery.

2.

Do not disassemble battery cartridge.

3.

If operating time has become excessively

 

shorter, stop operating immediately. It may

 

result in a risk of overheating, possible burns

 

and even an explosion.

1

2

3

1.Button

2.Red part

3.Battery cartridge

4.

If electrolyte gets into your eyes, rinse them

 

out with clear water and seek medical

 

attention right away. It may result in loss of

 

your eyesight.

 

5.

Do not short the battery cartridge:

 

 

(1)

Do not touch the terminals with

any

 

 

conductive material.

 

 

(2)

Avoid storing battery cartridge

in a

 

 

container with other metal objects such as

 

 

nails, coins, etc.

 

 

(3) Do not expose battery cartridge to water

 

 

or rain.

 

 

 

A battery short can cause a large current

 

 

flow, overheating, possible burns and

 

 

even a breakdown.

 

6.

Do not store the tool and battery cartridge in

 

locations where the temperature may reach or

 

exceed 50 C (122 F).

 

7.

Do not incinerate the battery cartridge even if

 

it is severely damaged or is completely worn

 

out. The battery cartridge can explode in a fire.

8.

Be careful not to drop or strike battery.

 

SAVE THESE INSTRUCTIONS.

007215

Always switch off the tool before insertion or removal of the battery cartridge.

To remove the battery cartridge, withdraw it from the tool while sliding the button on the front of the cartridge.

To insert the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Always insert it all the way until it locks in place with a little click. If you can see the red part on the upper side of the button, it is not locked completely. Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

Do not use force when inserting the battery cartridge. If the cartridge does not slide in easily, it is not being inserted correctly.

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Makita BGA450, BGA452 instruction manual Important Safety Instructions For Battery Cartridge, Functional Description

BGA452, BGA450 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.