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6 ENGLISH

Cordless grinder safety warnings

Safety warnings common for grinding, sanding, 

wire brushing, or cutting-off operations:

1. 

This power tool is intended to function as a 

grinder, sander, wire brush, hole cutter or cut-

off tool. Read all safety warnings, instructions, 

illustrations and specifications provided with 

this power tool.

 Failure to follow all instructions 

listed below may result in electric shock, fire and/

or serious injury.

2. 

Operations such as polishing are not to be 

performed with this power tool.

 Operations for 

which the power tool was not designed may create 

a hazard and cause personal injury.

3. 

Do not convert this power tool to operate in 

a way which is not specifically designed and 

specified by the tool manufacturer.

 Such a con-

version may result in a loss of control and cause 

serious personal injury.

4. 

Do not use accessories which are not spe-

cifically designed and specified by the tool 

manufacturer.

 Just because the accessory can 

be attached to your power tool, it does not assure 

safe operation.

5. 

The rated speed of the accessory must be at 

least equal to the maximum speed marked on 

the power tool.

 Accessories running faster than 

their rated speed can break and fly apart.

6. 

The outside diameter and the thickness of your 

accessory must be within the capacity rating 

of your power tool.

 Incorrectly sized accessories 

cannot be adequately guarded or controlled.

7. 

The dimensions of the accessory mounting 

must fit the dimensions of the mounting hard

-

ware of the power tool.

 Accessories that do not 

match the mounting hardware of the power tool 

will run out of balance, vibrate excessively and 

may cause loss of control.

8. 

Do not use a damaged accessory. Before each 

use inspect the accessory such as abrasive 

wheels for chips and cracks, backing pad for 

cracks, tear or excess wear, wire brush for 

loose or cracked wires. If power tool or acces-

sory is dropped, inspect for damage or install 

an undamaged accessory. After inspecting and 

installing an accessory, position yourself and 

bystanders away from the plane of the rotating 

accessory and run the power tool at maximum 

no-load speed for one minute. 

Damaged acces-

sories will normally break apart during this test 

time.

9. 

Wear personal protective equipment. 

Depending on application, use face shield, 

safety goggles or safety glasses. As appro-

priate, wear dust mask, hearing protectors, 

gloves and workshop apron capable of stop-

ping small abrasive or workpiece fragments.

 

The eye protection must be capable of stopping 

flying debris generated by various applications. 

The dust mask or respirator must be capable 

of filtrating particles generated by the particular 

application. Prolonged exposure to high intensity 

noise may cause hearing loss.

10. 

Keep bystanders a safe distance away 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 the power tool "live" and 

could give the operator an electric shock.

12. 

Never lay the power tool down until the acces-

sory has come to a complete stop.

 The spinning 

accessory may grab the surface and pull the 

power tool out of your control.

13. 

Do not run the power tool while carrying it at 

your side.

 Accidental contact with the spinning 

accessory could snag your clothing, pulling the 

accessory into your body.

14. 

Regularly clean the power tool’s air vents.

 The 

motor’s fan will draw the dust inside the housing 

and excessive accumulation of powdered metal 

may cause electrical hazards.

15. 

Do not operate the power tool near flammable 

materials.

 Sparks could ignite these materials.

16. 

Do not use accessories that require liquid 

coolants.

 Using water or other liquid coolants 

may result in electrocution or shock.

Kickback and related warnings:

Kickback is a sudden reaction to a pinched or snagged 

rotating wheel, backing pad, brush or any other acces

-

sory. Pinching or snagging causes rapid stalling of the 

rotating accessory which in turn causes the uncon

-

trolled power tool to be forced in the direction opposite 

of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or 

pinched by the workpiece, the edge of the wheel that is 

entering into the pinch point can dig into the surface of 

the material causing the wheel to climb out or kick out. 

The wheel may either jump toward or away from the 

operator, depending on direction of the wheel’s move-

ment at the point of pinching. Abrasive wheels may also 

break under these conditions.

Kickback is the result of power tool misuse and/or 

incorrect operating procedures or conditions and can be 

avoided by taking proper precautions as given below.

1. 

Maintain a firm grip with both hands on the 

power tool and position your body and arms 

to allow you to resist kickback forces. Always 

use auxiliary handle, if provided, for maximum 

control over kickback or torque reaction during 

start-up.

 The operator can control torque reactions 

or kickback forces, if proper precautions are taken.

2. 

Never place your hand near the rotating acces-

sory.

 Accessory may kickback over your hand.

3. 

Do not position your body in the area where 

power tool will move if kickback occurs.

 

Kickback will propel the tool in direction opposite 

to the wheel’s movement at the point of snagging.

4. 

Use special care when working corners, sharp 

edges, etc. Avoid bouncing and snagging the 

accessory.

 Corners, sharp edges or bouncing 

have a tendency to snag the rotating accessory 

and cause loss of control or kickback.

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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