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12 ENGLISH

For 115 mm (4 - 1/2″) / 125 mm (5″) 

model

1

2

3

►    

1.

 Sanding lock nut 

2.

 Abrasive disc 

3.

 Rubber pad

1.

 

Mount the rubber pad onto the spindle.

2.

 

Fit the disc on the rubber pad and screw the sand-

ing lock nut onto the spindle.

3.

  Hold the spindle with the shaft lock, and securely 

tighten the sanding lock nut clockwise with the lock nut 

wrench.

To remove the disc, follow the installation procedure in 

reverse.

OPERATION

WARNING:

 

It should never be necessary to 

force the tool.

 The weight of the tool applies ade

-

quate pressure. Forcing and excessive pressure 

could cause dangerous wheel breakage.

WARNING:

 

ALWAYS replace wheel if tool is 

dropped while grinding.

WARNING:

 

NEVER bang or hit grinding disc 

or wheel onto work.

WARNING:

 

Avoid bouncing and snagging 

the wheel, especially when working corners, 

sharp edges etc.

 This can cause loss of control and 

kickback.

WARNING:

 

NEVER use tool with wood cutting 

blades and other saw blades.

 Such blades when 

used on a grinder frequently kick and cause loss of 

control leading to personal injury.

CAUTION:

 

Never switch on the tool when it 

is in contact with the workpiece, it may cause an 

injury to operator.

CAUTION:

 

Always wear safety goggles or a 

face shield during operation.

CAUTION:

 

After operation, always switch off 

the tool and wait until the wheel has come to a 

complete stop before putting the tool down.

CAUTION:

 

ALWAYS hold the tool firmly with 

one hand on housing and the other on the side 

handle.

Grinding and sanding operation

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° to the workpiece surface.

During the break-in period with a new wheel, do not 

work the grinder in forward direction or it may cut into 

the workpiece. Once the edge of the wheel has been 

rounded off by use, the wheel may be worked in both 

forward and backward direction.

Operation with abrasive cut-off / 

diamond wheel

Optional accessory

WARNING:

 

When using an abrasive cut-off 

/ diamond wheel, be sure to use only the special 

wheel guard designed for use with cut-off wheels.

(In some European countries, when using a diamond 

wheel, the ordinary guard can be used. Follow the 

regulations in your country.)

WARNING:

 

NEVER use cut-off wheel for side 

grinding.

WARNING:

 

Do not "jam" 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 cut and the possibility 

of kickback, wheel breakage and overheating of the 

motor may occur.

WARNING:

 

Do not start the cutting operation 

in the workpiece. Let the wheel reach full speed 

and carefully enter into the cut moving the tool 

forward over the workpiece surface.

 The wheel 

may bind, walk up or kickback if the power tool is 

started in the workpiece.

WARNING:

 

During cutting operations, never 

change the angle of the wheel.

 Placing side pres

-

sure on the cut-off wheel (as in grinding) will cause 

the wheel to crack and break, causing serious per-

sonal injury.

WARNING:

 

A diamond wheel shall be oper-

ated perpendicular to the material being cut.

Summary of Contents for DGA458

Page 1: ...INSTRUCTION MANUAL Cordless Angle Grinder DGA408 DGA458 DGA508 ENGLISH Original instructions Read before use ...

Page 2: ...eached the end of their life must be col lected separately and returned to an envi ronmentally compatible recycling facility Intended use The tool is intended for grinding sanding and cutting of metal and stone materials without the use of water Noise The typical A weighted noise level determined accord ing to EN60745 Model DGA458 Sound pressure level LpA 80 dB A Uncertainty K 3 dB A Model DGA508 ...

Page 3: ...ify the plug in any way Do not use any adapter plugs with earthed grounded power tools Unmodified plugs and matching outlets will reduce risk of electric shock 2 Avoid body contact with earthed or grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of elec tric shock if your body is earthed or grounded 3 Do not expose power tools to rain or wet con ditions...

Page 4: ...r lubricating and chang ing accessories 3 Keep handles dry clean and free from oil and grease 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 illus trations and specifications provided with this ...

Page 5: ... and cause loss of control or kickback 5 Do not attach a saw chain woodcarving blade or toothed saw blade Such blades create fre quent kickback and loss of control Safety Warnings Specific for Grinding and Abrasive Cutting Off Operations 1 Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel Wheels for which the power tool was not des...

Page 6: ...ed hole wheel ensure that the thread in the wheel is long enough to accept the spindle length 13 Check that the workpiece is properly supported 14 Pay attention that the wheel continues to rotate after the tool is switched off 15 If working place is extremely hot and humid or badly polluted by conductive dust use a short circuit breaker 30 mA to assure opera tor safety 16 Do not use the tool on an...

Page 7: ...ing or checking function on the tool Installing or removing battery cartridge CAUTION Always switch off the tool before installing or removing of the battery cartridge CAUTION Hold the tool and the battery car tridge firmly when installing or removing battery cartridge Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hands and result in damage to the tool a...

Page 8: ...n some conditions the indicators light up Overload protection When the tool is operated in a manner that causes it to draw an abnormally high current the tool automatically stops without any indication In this situation turn the tool off and stop the application that caused the tool to become overloaded Then turn the tool on to restart Overheat protection When the tool is overheated the tool stops...

Page 9: ...This tool has high speed mode and high torque mode It automatically changes operation mode depending on the work load When mode indicator lights up during operation the tool is in high torque mode Accidental re start preventive function Even if installing the battery cartridge while pulling the switch lever the tool does not start To start the tool first release the switch lever Then pull the lock...

Page 10: ... Follow the regulations in your country For tool with locking screw type wheel guard Mount the wheel guard with the protrusions on the wheel guard band aligned with the notches on the bear ing box Then rotate the wheel guard to such an angle that it can protect the operator according to work Be sure to tighten the screw securely To remove wheel guard follow the installation proce dure in reverse 1...

Page 11: ...wrench and securely tighten clockwise 1 2 1 Lock nut wrench 2 Shaft lock To remove the wheel follow the installation procedure in reverse Installing or removing flex wheel Optional accessory WARNING Always use supplied guard when flex wheel is on tool Wheel can shatter during use and guard helps to reduce chances of personal injury 1 2 3 4 1 Lock nut 2 Flex wheel 3 Back up pad 4 Inner flange Follo...

Page 12: ...ding operation 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 to the workpiece surface During the break in period with a new wheel do not work the grinder in forward direction or it may cut into the workpiece Once the edge of the wheel has been rounded off by use the wheel may be worked in both forward and ba...

Page 13: ... 4 4 2 3 1 Lock nut 2 Diamond wheel Thinner than 4mm 5 32 3 Diamond wheel 4mm 5 32 or thicker 4 Inner flange For 115 mm 4 1 2 125 mm 5 model When installing the abrasive cut off wheel 1 1 4 4 2 3 1 Lock nut 2 Abrasive cut off wheel Thinner than 4mm 5 32 3 Abrasive cut off wheel 4mm 5 32 or thicker 4 Inner flange When installing the diamond wheel 1 1 4 4 2 3 1 Lock nut 2 Diamond wheel Thinner than ...

Page 14: ...chances of personal injury 1 1 Wire wheel brush Remove the battery cartridge from the tool and place it upside down allowing easy access to spindle Remove any accessories on spindle Thread wire wheel brush onto spindle and tighten with the wrenches NOTICE Avoid applying too much pressure which causes over bending of wires when using wire wheel brush It may lead to premature breakage MAINTENANCE CA...

Page 15: ... 2 model 125 mm 5 model 1 Grip 36 2 Wheel Guard for grinding wheel 3 Inner flange 4 Depressed center wheel Flap disc 5 Lock nut 6 Back up pad 7 Flex wheel 8 Inner flange and rubber pad 76 Rubber pad 100 Rubber pad 115 9 Abrasive disc 10 Sanding lock nut 11 Wire wheel brush 12 Wire cup brush 13 Wheel Guard for cut off wheel 1 14 Abrasive cut off wheel Diamond wheel Lock nut wrench NOTE 1 In some Eu...

Page 16: ...885471A226 EN 20151001 www makita com Makita Europe N V Makita Corporation 3 11 8 Sumiyoshi cho Anjo Aichi 446 8502 Japan Jan Baptist Vinkstraat 2 3070 Kortenberg Belgium ...

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