MasterCraft 054-7120-4 Instruction Manual Download Page 16

ANGLE GRINDER - 054-7120-4

15

Mounting the wheel

 (fig 5-6)

WARNING!

 Only use grinding wheels for which 
the maximum safe operating speed 
is rated at or above 13200 RPM. 
Never use damaged or imbalanced 
grinding wheels. Do not exceed the 
recommended wheel diameter. Grinding 
wheel type 27 is recommended for use 
on this grinder.

WARNING!

 Failure to unplug the tool from the power source when assembling parts, making 
adjustments, or changing application tools could result in accidental starting and cause 
serious injury.

1.  Unplug the angle grinder.

2.  Make sure that the guard is securely in place. Depress the spindle-lock button. Loosen the outer 

flange with the supplied wrench while holding the spindle-lock button down (fig 6).

3.  Place the inner flange on the spindle; make sure that the flange is positioned so that the shape of 

the opening in the flange corresponds with the shape at the base of the spindle.

4.  Place the grinding wheel on the spindle. Check the rated speed on the grinding wheel. DO NOT use 

a wheel with a rated speed lower than the speed shown on the grinder nameplate.

5.  Thread the outer flange on the spindle with the flat side of the flange facing up, making sure that 

the opening in the wheel is positioned around the raised portion of the outer flange (fig 5).

6.  Press the spindle-lock button to prevent 

movement of the spindle.

7.  Keep the spindle-lock button depressed; 

tighten the threaded outer flange by turning it 
clockwise with the wrench (fig 6).

WARNING!

Keep the guard between you and 
the wheel. Do not direct the guard 
opening toward your body.

OPERA

TING INSTR

UCTIONS

fig 6

Spindle-lock 
button

fig 5

Outer flange

Inner 
flange

Spindle

Grinding 
wheel

Summary of Contents for 054-7120-4

Page 1: ...INSTRUCTION MANUAL ANGLE GRINDER 054 7120 4...

Page 2: ...1 800 689 9928 Read and understand this instruction manual thoroughly before using the product It contains important information for your safety as well as operating and maintenance advice Keep this i...

Page 3: ...LE GRINDER 054 7120 4 2 TABLE OF CONTENTS TECHNICAL SPECIFICATIONS 3 SAFETY GUIDELINES 4 9 DESCRIPTION 10 OPERATING INSTRUCTIONS 11 16 MAINTENANCE 17 18 TROUBLESHOOTING 19 PARTS LIST 20 21 WARRANTY 22...

Page 4: ...RINDER 054 7120 4 3 RATED POWER INPUT 5A RATING 120 V 60 Hz RATED SPEED 11 000 RPM WHEEL DIAMETER 4 1 2 115 mm ARBOR SIZE 5 8 RECOMMENDED WHEEL Type 27 TOOL WEIGHT 3 lb 15 oz 1 79 kg TECHNICAL SPECIFI...

Page 5: ...ur tool To operate this tool carefully read this Instruction Manual and all labels affixed to the Angle Grinder before using Keep this manual available for future reference Important This tool should...

Page 6: ...e cord away from heat oil sharp edges or moving parts Damaged or entangled cords increase the risk of electric shock When operating a power tool outdoors use an extension cord suitable for outdoor use...

Page 7: ...er source and 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 to...

Page 8: ...use inspect the accessory If the power tool or accessory is dropped inspect it for damage or install an undamaged accessory After inspecting and installing an accessory position yourself and bystander...

Page 9: ...iquid coolants Using water or other liquid coolants may result in electrocution or shock The label on your tool may include the following symbols The symbols and their definitions are as follows V Vol...

Page 10: ...wer tool and positioned for maximum safety so the least amount of wheel is exposed towards the operator The guard helps to protect the operator from broken wheel fragments accidental contact with whee...

Page 11: ...9 Wheel guard 5 Inner flange Before attempting to use this tool become familiar with all of its operating features and safety requirements For optimum performance and safety read the following operat...

Page 12: ...is on the OFF position before you plug the tool into an outlet Failure to do this could result in accidental starting and cause serious injury 2 To turn the tool ON without locking it slide the switch...

Page 13: ...and ease of operation WARNING Failure to unplug the tool from the power source when assembling parts making adjustments or changing application tools could result in accidental starting and cause seri...

Page 14: ...ase the guard adjusting lever to lock the guard and make sure the lever secures the guard WARNING Never use your grinder with the guard removed It has been designed for use only with the guard attache...

Page 15: ...rotate the guard so that the tabs on the guard are aligned with the slots on the gear case cover and pull up on the guard To mount the guard 1 Unplug the angle grinder 2 Remove the outer and inner fl...

Page 16: ...ner flange on the spindle make sure that the flange is positioned so that the shape of the opening in the flange corresponds with the shape at the base of the spindle 4 Place the grinding wheel on the...

Page 17: ...s difficult to control If the angle is to steep the pressure is concentrated on a small area causing burning to the work surface Move the angle grinder back and forth with moderate pressure to avoid d...

Page 18: ...ting oil etc come into contact with plastic parts These substances contain chemicals that can damage weaken or destroy plastic WARNING When servicing use only identical replacement parts The use of an...

Page 19: ...ing any maintenance The tool may be cleaned most effectively with compressed dry air Always wear safety goggles when cleaning tools with compressed air Ventilation openings and switch levers must be k...

Page 20: ...nnect the tool to a power source The plugs are not fully connected Make sure all plugs are connected The tool is running slowly The grinding wheel is worn out Replace the grinding wheel on the tool If...

Page 21: ...ANGLE GRINDER 054 7120 4 20 Exploded view PARTS LIST...

Page 22: ...ng 23 2750998001 Rotor 24 5700004001 Ball Bearing PARTS LIST No Part No Description 25 3121026001 Bearing Holder 26 3127161001 Fan Baffle 27 5610051006 Tapping Screw 28 2740344001 Stator 29 4870023018...

Page 23: ...bour relating thereto These warranties are subject to the following conditions and limitations a a bill of sale verifying the purchase and purchase date must be provided b this warranty will not apply...

Page 24: ...dentified as the product of another company which shall be covered under the product manufacturer s warranty if any Additional limitations This warranty applies only to the original purchaser and may...

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