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3 ENGLISH

Intended use

The tool is intended for grinding, sanding, wire brush-

ing, hole cutting and cutting of metal and stone materi-

als without the use of water.

Noise

The typical A-weighted noise level determined according to EN62841-2-3:

Model

Sound pressure 

level (L

pA

) : (dB(A))

Sound power level 

(L

WA

) : (dB(A))

Uncertainty (K) :

(dB(A))

GA048G

84

92

3

GA049G

85

93

3

GA050G

85

93

3

GA051G

85

93

3

NOTE:

 The declared noise emission value(s) has been measured in accordance with a standard test method and 

may be used for comparing one tool with another.

NOTE:

 The declared noise emission value(s) may also be used in a preliminary assessment of exposure.

WARNING:

 

Wear ear protection.

WARNING:

 

The noise emission during actual use of the power tool can differ from the declared val

-

ue(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.

WARNING:

 

Be sure to identify safety measures to protect the operator that are based on an estimation 

of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the 

times when the tool is switched off and when it is running idle in addition to the trigger time).

WARNING:

 

Grinding thin sheets of metal or other easily vibrating structures with a large surface can 

result in a total noise emission much higher (up to 15 dB) than the declared noise emission values. 

Set heavy flexible damping mats or such to those workpieces to prevent them from emitting sound.

Take the increased noise emission into consideration for both the risk assessment of noise exposure and 

selecting adequate hearing protection.

Vibration

The vibration total value (tri-axial vector sum) determined according to EN62841-2-3:

Work mode: surface grinding with normal side grip

Model

Vibration emission (a

h

AG

) : (m/s

2

) Uncertainty (K) : (m/s

2

)

GA048G

8.2

1.5

GA049G

8.5

1.5

GA050G

8.9

2.2

GA051G

12.1

1.5

Work mode: surface grinding with anti vibration side grip

Model

Vibration emission (a

h

AG

) : (m/s

2

) Uncertainty (K) : (m/s

2

)

GA048G

7.1

1.5

GA049G

7.7

1.5

GA050G

8.8

1.5

GA051G

12.7

1.6

Work mode: disc sanding with normal side grip

Model

Vibration emission (a

h

DS

) : (m/s

2

) Uncertainty (K) : (m/s

2

)

GA048G

2.5 m/s

2

 or less

1.5

GA049G

2.8

1.5

GA050G

2.6

1.5

GA051G

3.1

1.5

Summary of Contents for GA048G

Page 1: ...INSTRUCTION MANUAL Cordless Angle Grinder GA048G GA049G GA050G GA051G ENGLISH Original instructions Read before use ...

Page 2: ...ridges and chargers listed above Use of any other battery cartridges and chargers may cause injury and or fire Recommended cord connected power source Portable power pack PDC01 PDC1200 The cord connected power source s listed above may not be available depending on your region of residence Before using the cord connected power source read instruction and cautionary markings on them Symbols The fol...

Page 3: ...king account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time WARNING Grinding thin sheets of metal or other easily vibrating structures with a large surface can result in a total noise emission much higher up to 15 dB than the declared noise emission values Set heavy flexible damping mats or such to tho...

Page 4: ...ldren and bystanders away while operating a power tool Distractions can cause you to lose control Electrical safety 1 Power tool plugs must match the outlet Never modify 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 radia...

Page 5: ...ents are caused by poorly maintained power tools 6 Keep cutting tools sharp and clean Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control 7 Use the power tool accessories and tool bits etc in accordance with these instructions tak ing into account the working conditions and the work to be performed Use of the power tool for operations differ...

Page 6: ...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 11 Hold the power tool by insulated gripping surfaces only when performing an operation where the cutting tool may contact hidden wiring Contact with a live wire will also make exposed metal parts of th...

Page 7: ... the cut off wheel from the cut while the wheel is in motion otherwise kickback may occur Investigate and take corrective action to eliminate the cause of wheel binding 4 Do not restart the cutting operation in the workpiece Let the wheel reach full speed and carefully re enter the cut The wheel may bind walk up or kickback if the power tool is restarted in the workpiece 5 Support panels or any ov...

Page 8: ...r failure to follow the safety rules stated in this instruction manual may cause serious personal injury Important safety instructions for battery cartridge 1 Before using battery cartridge read all instruc tions and cautionary markings on 1 battery charger 2 battery and 3 product using battery 2 Do not disassemble or tamper with the battery cartridge It may result in a fire excessive heat or expl...

Page 9: ...vice life 3 Charge the battery cartridge with room tem perature at 10 C 40 C 50 F 104 F Let a hot battery cartridge cool down before charging it 4 When not using the battery cartridge remove it from the tool or the charger 5 Charge the battery cartridge if you do not use it for a long period more than six months FUNCTIONAL DESCRIPTION WARNING Always be sure that the tool is switched off and the ba...

Page 10: ...ol on to restart Overheat protection When the tool battery is overheated the tool stops automatically Let the tool cool down before turning the tool on again Overdischarge protection When the battery capacity is not enough the tool stops automatically In this case remove the battery from the tool and charge the battery Releasing protection lock When the protection system works repeatedly the tool ...

Page 11: ...tions where the wheel or accessory may be at risk to be bound In the situation the tool is automatically shut off to prevent further rotation of the spindle it does not prevent kickback To restart the tool switch off the tool first remove the cause of sudden drop in the rotation speed and then turn the tool on Soft start feature Soft start feature reduces starting reaction Electric brake Electric ...

Page 12: ...traight Otherwise you cannot secure the wheel guard 3 While pushing the lock lever toward A rotate the wheel guard toward C and then change the angle of the wheel guard according to the work so that the oper ator can be protected Align the lock lever with one of the holes in the wheel guard and then release the lock lever to lock the wheel guard 2 1 A C C Fig 8 1 Wheel guard 2 Hole To remove wheel...

Page 13: ...en use the lock nut wrench and securely tighten clockwise 1 2 Fig 11 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 the tool Wheel can shatter during use and guard helps to reduce chances of personal injury 1 2 3 4 Fig 12 1 Lock nut 2 Flex wh...

Page 14: ...cessory Only for tools with M14 spindle thread Mount inner flange abrasive wheel and Ezynut onto the spindle so that Makita Logo on Ezynut faces outside 1 2 4 3 Fig 15 1 Ezynut 2 Abrasive wheel 3 Inner flange 4 Spindle Press shaft lock firmly and tighten Ezynut by turning the abrasive wheel clockwise as far as it turns 1 Fig 16 1 Shaft lock To loosen the Ezynut turn the outside ring of Ezynut coun...

Page 15: ...t and the inner flange varies by wheel type and thickness Refer to the following figures For 100 mm 4 model When installing the abrasive cut off wheel 16 mm 5 8 16 mm 5 8 1 1 4 4 2 3 Fig 20 1 Lock nut 2 Abrasive cut off wheel Thinner than 4 mm 5 32 3 Abrasive cut off wheel 4 mm 5 32 or thicker 4 Inner flange When installing the diamond wheel 1 1 4 4 2 3 Fig 21 1 Lock nut 2 Diamond wheel Thinner th...

Page 16: ...sh onto spindle and tighten with the wrenches 1 Fig 25 1 Wire wheel brush Installing hole cutter Optional accessory Place the tool upside down to allow easy access to the spindle Remove any accessories on the spindle Thread the hole cut ter onto the spindle and tighten it with the supplied wrench 1 Fig 26 1 Hole cutter Installing dust collecting wheel guard for grinding Only for model GA049G GA050...

Page 17: ...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 ...

Page 18: ... and break causing serious per sonal injury WARNING A diamond wheel shall be oper ated perpendicular to the material being cut Usage example operation with abrasive cut off wheel Fig 31 Usage example operation with diamond wheel Fig 32 Operation with wire cup brush Optional accessory CAUTION Check operation of wire cup brush by running tool with no load insuring that no one is in front of or in li...

Page 19: ...r alcohol or the like Discoloration deformation or cracks may result To maintain product SAFETY and RELIABILITY repairs any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers always using Makita replacement parts Air vent cleaning The tool and its air vents have to be kept clean Regularly clean the tool s air vents or whenever the vents start to bec...

Page 20: ...ard or grinding wheel guard with a wheel type wire brush with a thick ness greater than the maximum thickness as specified in SPECIFICATIONS the wires may catch on the guard leading to breaking of wires Use of dust collecting wheel guards for cutting off and facial operations in concrete or masonry reduces a risk of exposure to dust When using dual purpose combined grinding and cutting off abrasiv...

Page 21: ...the clip on cutting wheel guard attachment NOTE 3 Only for model GA048G GA049G GA050G For more details refer to each instruction manual of the guard NOTE 4 Only for model GA049G GA050G For more details refer to each instruction manual of the guard OPTIONAL ACCESSORIES CAUTION These accessories or attachments are recommended for use with your Makita tool specified in this manual The use of any othe...

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Page 24: ...Makita Europe N V Jan Baptist Vinkstraat 2 3070 Kortenberg Belgium Makita Corporation 3 11 8 Sumiyoshi cho Anjo Aichi 446 8502 Japan 885A31A220 EN 20230214 ...

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