background image

To tighten the lock nut, press the shaft lock firmly so that 
the spindle cannot revolve, then use the lock nut wrench 
and securely tighten clockwise. 

1

2

 

 

007220 

To remove the wheel, follow the installation procedure in 
reverse. 

 

WARNING: 

Only actuate the shaft lock when the spindle is not 
moving. 

OPERATION 

 

WARNING: 

• 

It should never be necessary to force the tool. The 
weight of the tool applies adequate pressure. 
Forcing and excessive pressure could cause 
dangerous wheel breakage. 

• 

ALWAYS replace wheel if tool is dropped while 
grinding. 

• 

NEVER bang or hit grinding disc or wheel onto 
work. 

• 

Avoid bouncing and snagging the wheel, especially 
when working corners, sharp edges etc. This can 
cause loss of control and kickback. 

• 

NEVER use tool with wood cutting blades and 
other sawblades. Such blades when used on a 
grinder frequently kick and cause loss of control 
leading to personal injury. 

CAUTION: 

• 

Make the depth of a single cut up to 5 mm. Adjust 
pressure on the tool so that the tool does not slow 
down during the operation. 

• 

After operation, always switch off the tool and wait 
until the wheel has come to a complete stop before 
putting the tool down. 

• 

If the tool is operated continuously until the battery 
cartridge has discharged, allow the tool to rest for 
15 minutes before proceeding with a fresh battery. 

 
 

Grinding and sanding operation 

A

B

   

007221 

ALWAYS hold the tool firmly with one hand on housing 
and the other on the side handle. Turn the tool on and 
then apply the wheel or disc to the workpiece. 
In general, keep the edge of the wheel or disc at an 
angle of about 15 degrees to the workpiece surface. 
During the break-in period with a new wheel, do not work 
the grinder in the B direction or it will cut into the 
workpiece. Once the edge of the wheel has been 
rounded off by use, the wheel may be worked in both A 
and B direction. 

Operation with abrasive cut-off / diamond 
wheel (optional accessory) 

1

2

3

4

 

 

010855 

The direction for mounting the lock nut and the inner 
flange varies by wheel thickness. Refer to the table 
below. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

1. Lock nut 
2. Abrasive cut-off 

wheel/diamond 
wheel 

3. Inner flange 
4. Wheel guard for 

abrasive cut-off 
wheel/diamond 
wheel 

1. Lock nut wrench
2. Shaft lock 

Summary of Contents for BGA402

Page 1: ...1 ENGLISH Original instructions INSTRUCTION MANUAL IMPORTANT Read Before Using Cordless Angle Grinder BGA402 BGA450 BGA452 007214...

Page 2: ...s and all instructions Failure to follow the warnings and instructions may result in electric shock fire and or serious injury Save all warnings and instructions for future reference The term power to...

Page 3: ...nd or the battery pack from the power tool before making any adjustments changing accessories or storing power tools Such preventive safety measures reduce the risk of starting the power tool accident...

Page 4: ...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 pa...

Page 5: ...r power tool is not suitable for the higher speed of a smaller tool and may burst Additional Safety Warnings Specific for Abrasive Cutting Off Operations a Do not jam the cut off wheel or apply excess...

Page 6: ...ted by conductive dust use a short circuit breaker 30 mA to assure operator safety 34 Do not use the tool on any materials containing asbestos 35 Do not use water or grinding lubricant 36 Ensure that...

Page 7: ...e 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...

Page 8: ...ion 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 to...

Page 9: ...low down during the operation After operation always switch off the tool and wait until the wheel has come to a complete stop before putting the tool down If the tool is operated continuously until th...

Page 10: ...am the wheel or apply excessive pressure Do not attempt to make an excessive depth of cut Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cu...

Page 11: ...uld be performed by Makita Authorized Service Centers always using Makita replacement parts ACCESSORIES CAUTION These accessories or attachments are recommended for use with your Makita tool specified...

Page 12: ...12 Makita Corporation www makita com 884662D0...

Reviews: