Alpha Tool.Com.HK Limited Grinder HSG125 User Manual

103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114
www.alpha-tools.com
Part No: HSG-125
      HSG-225
Alpha
®
 High-Speed
Angle Grinder
Instruction Manual
MANUAL 

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TABLE OF CONTENTS
High-Speed Angle Grinder Overview ...........................................................................3
 Specifi cations ....................................................................................................3
 Accessories .......................................................................................................4
 Components ......................................................................................................4
Introduction...

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HIGH-SPEED ANGLE GRINDER OVERVIEW
  SPECIFICATIONS
Power Supply ........................................................... Single-Phase AC, 50 / 60 Hz
Rating ............................................................................................ 115 / 230 Volts
Amperage ............................................................................................ 7.2A  /  3.6A
Power ........................................................................................................... 800W...

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 ACCESSORIES
COMPONENTS:
Protective Cover w/ Clamp Screw (Part No. 130653)
Side Handle (Part No. 130433)
Inside Flange and Locking Flange Set with 7/8” Arbor (Part No. 136038 & 136039)*
Pin spanner Wrench 34 mm (Part No. 130434)
Extra Carbon Brush Set (Part No. 136046)
Extra Inside Flange & Locking Flange Set with 20mm Arbor (Part No. 136040 & 136041)**
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Figure-2

 

 
(**Only available in the 115V) (*Available in the 115V and 230V) 

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INTRODUCTION
Thank you for purchasing the Alpha® High-Speed Angle Grinder.  Please read this instruc-
tion manual thoroughly to ensure safety and correct use of this tool.  Keep this manual in 
a place where operators can access it easily whenever necessary.
 ABOUT THE SYMBOLS
According to the hazard level, all safety notes in this manual are classifi ed into “DANGER”,  
“WARNING”, and “CAUTION”.
  DANGER!  Death or serious personal injury is imminent when handling this tool 
incorrectly.
  WARNING!...

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  CAUTION!
The following are important notes for products, operation, and maintenance applicable to 
this High-Speed Angle Grinder.
GENERAL SAFETY RULES
 WORK AREA
Keep your work area clean and well lit.  Cluttered benches and dark areas invite 
accidents.
Do not operate power tools in explosive atmospheres, such as in the presence 
of fl ammable liquids, gases, or dust.  Power tools may create sparks which may 
ignite the dust or fumes.
Keep bystanders, children, and visitors away while operating a...

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Remove adjusting keys or wrenches before turning the tool on.   A wrench or a 
key that is left attached to a rotating part of the tool may result in personal injury.
Do not overreach.  Keep proper footing and balance at all times.  Proper footing and 
balance enables better control of the tool in unexpected situations.  Do not use on a 
ladder or unstable support.
Use safety equipment.   Always wear eye protection.  Dust mask, nonskid safety 
shoes, hard hat, or hearing protection must be used for...

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 SPECIFIC SAFETY RULES
Accessories must be rated for at least the speed recommended on the tool 
warning label.  Wheels and other accessories running over rated speed can fl y apart 
and cause injury.
Hold tool by insulated gripping surfaces when performing an operation where 
the cutting tool may contact hidden wiring or its own cord.  Contact with a “live” 
wire will make exposed metal parts of the tool “live” and shock the operator.
Know your power tool.  Read operator`s manual carefully.  Learn its...

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overheating.  Below table shows the correct size to use depending on cord length and 
nameplate ampere rating.  If in doubt, use the next heavier gauge.  The smaller the gauge 
number, the heavier the cord.
Ampere RatingTotal length of cord in feet (115V )
25ft 50ft 100ft 
More Than Not More Than AWG
0 6 18 16  16
6 10 18 16 14
10 12 16 16 14
12 16 14 12
Not Recommended
ADDITIONAL PRECAUTIONS FOR USING 
THE HIGH-SPEED ANGLE GRINDER
In addition to the general safety notes described on the preceding...

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•  Check grinding tools before use.  The grinding wheel must be properly mounted and 
turn freely.  Perform a test run for at least 30 seconds without any load.  Do not use 
damaged, out of round or vibrating grinding tools.
•  Immediately switch off the machine in case of considerable vibrations or if other 
malfunctions occur.  Check the machine in order to fi nd out the cause.
•  Always use and store the grinding wheels according to the manufacturer’s instructions. 
The fl ange bolt must be tightened...