Alpha Tool.Com.HK Limited Grinder ECG125 User Manual

							103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114
www.alpha-tools.com
Part No: ECG-125
     ECG-225
Alpha® Ecogrinder
Instruction Manual
MANUAL
VERSION 5  
						

							2
TABLE OF CONTENTS
Ecogrinder Overview ........................................................................\
........................4
Accessories ........................................................................\
......................................5
Introduction ........................................................................\
.......................................6
 About The Symbols........................................................................\
.....................6
 Electrical Symbols ........................................................................\
......................6
General Safety Rules ........................................................................\
........................7
 Work Area ........................................................................\
....................................7
 Electrical Safety ........................................................................\
..........................7
 Personal Safety ........................................................................\
...........................7
 Tool Use and Care ........................................................................\
.......................8
 Service ........................................................................\
.........................................9
	 Specific	Safety	Rules ........................................................................\
..................9
  Use Proper Extension Cords........................................................................\
....10
 Grounding Instructions ........................................................................\
............10
Additional Precautions For Using The Ecogrinder .............................................11
 Safety Advice ........................................................................\
.............................11
How To Grind ........................................................................\
..................................12
 How To Handle The Grinder ........................................................................\
.....12
Ecogrinder Operation ........................................................................\
.....................13
 Main Connection ........................................................................\
.......................13
 Circuit Breaker........................................................................\
...........................14
Before Use ........................................................................\
.......................................14
 About Double Insulation ........................................................................\
...........16
 Laws And Regulations Of Noise Levels ..........................................................16
Using The Tool  ........................................................................\
...............................16
 Open Surface Grinding ........................................................................\
.............16
 Edge Grinding........................................................................\
............................16 
Dust Hose and Bag Installation ........................................................................\
.....17
Ecogrinder Maintenance  ........................................................................\
...............19
 Daily ........................................................................\
............................................19
 Periodic ........................................................................\
......................................19
 Bearings And Gears ........................................................................\
..................19  
						

							3
Replacing And Checking The Carbon Brushes ...................................................20
Grinding Wheel Inspection, Removal, and Installation .......................................24
 Inspecting The Grinding Wheel .......................................................................24
 Checking The Grinding Wheel For Replacement ...........................................25
  Removing The Grinding Wheel ........................................................................\
26
 Replacing the Grinding Wheel ........................................................................\
.27
  Installing The Spring Loaded Flange Assembly ............................................28
 Installing The Grinding Wheel........................................................................\
..29
Fan Belt Removal And Replacement ....................................................................30
 Testing The Unit For Flow ........................................................................\
........30
 Inner Fan Belt Removal ........................................................................\
............31
  Inspecting and Cleaning The Fan Belts and Pulleys .....................................32
 Reinstalling The Inner Fan Belt........................................................................\
32
 Removal Of The Outer Fan Belt .......................................................................33
  Reinstalling The Outer Fan Belt .......................................................................34
Alpha® Ecogrinder Motor Schematic (ECG-125) ..................................................35
Alpha® Ecogrinder Attachment Schematic  .........................................................36
Alpha® Ecogrinder Parts List (ECG-125) ..............................................................37
Services And Warranty Information ......................................................................41
  Loaner Program........................................................................\
.........................41
 Need More Information  ........................................................................\
............41
 Warranty ........................................................................\
.....................................41
 Alpha® Tool Repair Service ........................................................................\
......42
EC Declaration Of Conformity ........................................................................\
.......43
Appendix A - Manual Height Adjustment Flange Assembly ...............................44  
						

							4
ECOGRINDER OVERVIEW
  SPECIFICATIONS
Power Supply .............................................................Single-Phase AC, 50/60 Hz
Rating ................................................................................................110/220 Volts
Amperage .................................................................................................10.25/5.1
Power .....................................................................................................\
......1050W
No-load Speed ........................................................................\
..............8,700 RPM
Wheel Size ............................................................................................5” / 125mm
Arbor .....................................................................................................\
........26mm 
 (To be used with Spring Loaded Flange Assembly and Drive Plate Adapter) 
Arbor ...............................................................................................7/8” / 22.23mm
 (To be used with Manual Height Adjustment Flange Assembly) 
Weight .....................................................................................12.70 lbs / 5.76kgs
 (Tool w/Hose and Bag)
Cord ....................................................................................................\
......10ft / 3m
                                             (Single Phase 2 Conductor)
Figure-1
Protective GrindingWheel Cover
Aux Handle
Dust Brush
Edge GrindingSlide Cover
Slide CoverKnob
Fan Case
Spindle Locking Pin
Fan Belt Cover
Power Switch
Power Switch
Lock   
						

							5
 ACCESSORIES
COMPONENTS: 
1. Dust Bag (Part No. 133544)
2. Dust Hose (Part No. 133533)
3. Dust Gate with Anti-Back-Flow Flap (Part Nos. 133530 & 133531)
4. Spring Loaded Flange Assembly  (Part Nos. 801375, 801376, 801377, 801378 & 801379)
5. Carbon Brush Set (Part No. 801594)
6. Pin Spanner Wrench 34 mm (Part No. 130434)
7. Top Handle w/Screw & Lock Washers (Part No. 801354)
8. 5” Grinding Wheel w/26mm Arbor (Part No. DSQ0500)
9. Fan Belt Set (Part No. 133508)
10. Manual Height Adjustment Flange Assembly (Part No. 890001)
Figure-2





OPTIONAL 
ACCESSORY


   
						

							6
INTRODUCTION
Thank you for purchasing the Alpha® Ecogrinder.  Please read this instruction manual 
thoroughly to ensure safety and correct use of this tool.  Keep this man\
ual 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	classified	 into	“DANGER”, 		
“WARNING”,	and	“CAUTION”.
    DANGER!  Death or serious personal injury is imminent when handling this 
grinder incorrectly.
  WARNING!  There is a possibility of death or serious personal injury when 
handling this grinder incorrectly. 
    CAUTION! There is a possibility of personal injury or property damage when 
handling this grinder incorrectly.
NOTE:  In some situations, failing to observe WARNING notes could result in death or seri-
ous personal injury.  Be sure to read and observe the safety notes to ensure safety 
and correct use of the grinder.  
 ELECTRICAL SYMBOLS
The following show the symbols used for tool.
V     Volts
A    Amperes
Hz  Hertz
~ or a.c. Alternating Current
n0   No load speed
…/min Revolution or reciprocation per minute
kg  Kilograms
  Protective Earth
     
						

							7
  CAUTION!
The following are important notes for products, operation, and maintenan\
ce applicable to 
this polisher.
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 pres\
ence 
of	flammable	 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 power too\
l. 
Distractions can cause you to lose control.
 ELECTRICAL SAFETY
•	Grounded tools must be plugged into an outlet properly installed and gro\
unded 
in accordance with all codes and ordinances. Never remove the grounding prong 
or	modify	 the	plug	 in	any	 way.	 Do	not	 use	 any	adaptor	 plugs.	Check	 with	a	qualified 	
electrician if you are in doubt as to whether the outlet is properly gro\
unded.  If the tools 
should electrically malfunction or break down grounding provides a low resistance path 
to carry electricity away from the user.
•	Avoid body contact with grounded surfaces, such as pipes, radiators, ranges, and 
refrigerators.  There is an increased risk of electric shock if your bod\
y is grounded.
•	Don’t expose power tools to rain or wet conditions.  Water entering a power tool 
will increase the risk of electric shock.
•	Do not abuse the cord.  Never use the cord to carry the tools or pull the plug from an 
outlet.  Keep cord away from heat, oil, sharp edges, or moving parts.  Replace damaged 
cords immediately.  Damaged cords increase the risk of electric shock.
•	When operating a power tool outside, use an outdoor extension cord marke\
d 
“W-A”	or	 “W”.		 These	 cords	are	rated	 for	outdoor	 use	and	 reduce	 the	risk	 of	electric 	
shock.
 PERSONAL SAFETY
•	Stay alert, watch what you are doing and use common sense when operating\
 
a	power 	tool.		 Do	not 	use	 tool	 while	 tired	or 	under 	the	 influence	 of	drugs,	 alcohol,	 or	
medication.   A moment of inattention while operating power tools may result in seri-
ous personal injury.
•	Dress properly.  Do not wear loose clothing or jewelry.  Contain long hair.  Keep your 
hair, clothing, and gloves away from moving parts.  Loose clothes, jewelry, or long hair 
can be caught in moving parts or drawn into air vents.   
						

							8
•	Avoid accidental starting.  Be sure switch is off before plugging in.  Carrying tools with 
your	finger	 on	the	 switch	 or	plugging	 in	tools	 that	have	 the	switch	 on,	invites	 accidents.
•	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 p\
ersonal 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 appropriate cond\
itions.
 TOOL USE AND CARE
•	Use clamps or other practical way to secure and support the workpiece to a 
stable platform.  Holding the work by hand or against your body is unsta\
ble and may 
lead to loss of control.
•	Do not force tool, use the correct tool for your application.  The corre\
ct tool will do 
the job better and safer at the rate for which it is designed.
•	Do not use tool if switch does not turn it on or off.   Any tool that cannot be controlled 
with the switch is dangerous and must be repaired.
•	Disconnect the plug from power source before making any adjustments, chang-
ing accessories, or storing the tool.  Such preventive safety measures r\
educe the 
risk of starting the tool accidentally.
•	Store idle tools out of the reach of children and other untrained person\
s.  Tools 
are dangerous in the hands of untrained users.
•	Maintain tools with care.   Keep tools sharp and clean for better and safer performance. 
Follow instructions for lubricating and changing accessories.  Inspect the electrical cord 
periodically and if damaged, have it repaired by authorized service facility.  Inspect 
extension cords periodically and replace if damaged.  Keep handles dry, clean and 
free from oil and grease.
•	Check for damaged parts.  Before using the tool each day, a guard or other part 
that is damaged should be carefully checked to determine that it will operate properly 
and perform its intended function.  Check for alignment of moving parts,\
 breakage of 
parts, mounting, and any other conditions that may affect its operation.  A guard or 
other part that is damaged should be properly repaired or replaced by an\
 authorized 
service center unless otherwise indicated elsewhere in this instruction \
manual.  Have 
defective switches replaced by authorized service center.  Do not use the tool if it 
cannot be turned on and off by the switch.
•	Use only accessories that are recommended by the manufacturer for your m\
odel. 
Accessories that may be suitable for one tool, may become hazardous when\
 used 
on another tool.   
						

							9
 SERVICE
•	Tool	service	 must	be	performed	 only	by	qualified	 repair	personnel.		 Service	or	
maintenance	 performed	by	unqualified	 personnel	could	result	 in	a	risk	 of	injury.
•	When servicing a tool, use only identical replacement parts.  Follow ins\
tructions in 
the Maintenance section of this manual.  Use of unauthorized part or failure to follow 
Maintenance Instructions may create a risk of electric shock or injury.
 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	fly	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 application and 
limitations,	 as	well	 as	the	 specific	 potential	 hazards	related	to	this	 tool.		 Following	 this	
rule	will	reduce	the	risk	of	electric	shock,	fire,	or	serious	injury.
•	Always wear safety glasses with side shields.  Everyday eye-glasses have only 
impact resistant lenses; they are NOT safety glasses. 
•	Protect your lungs.  Wear a face or dust mask if the operation is dusty. 
•	Protect your hearing.  Wear hearing protection during extended periods of opera-
tion. 
•	Inspect tool cords periodically and if damaged, have repaired at your ne\
arest Fac-
tory Service Center or other Authorized Service Organization.  Constantly stay aware 
of cord location. 
•	Check damaged parts.  Before further use of the tool, a guard or other p\
art that is 
damaged should be carefully checked to determine that it will operate properly and 
perform its intended function.  Check for alignment of moving parts, bin\
ding of moving 
parts, breakage of parts, mounting, and any other conditions that may af\
fect its opera-
tion, A guard or other part that is damaged should be properly repaired or repl\
aced by 
an authorized service center. 
•	Do not abuse cord.  Never carry the tool by the cord or yank it to disco\
nnect it from 
the receptacle.  Keep cord away from heat, oil, and sharp edges.  Following this rule 
will	reduce	the	risk	of	electric	shock	or	fire.
•	Make sure your extension cord is in good condition.  When using an exten\
sion 
cord, be sure to use one heavy enough to carry the current your product will draw. 
An undersized cord will cause a drop in line voltage resulting in loss o\
f power and 
overheating.
•	Inspect for and remove all foreign objects from workpiece before polishi\
ng.  
Follow this rule will reduce the risk of serious personal injury.   
						

							10
•	Drugs,	alcohol,	 medication,	 Do	not	 operate	 tool	while	 under	 the	influence	 of	
drugs, alcohol, or any medication.  Follow this rule will reduce the ris\
k of electric 
shock,	fire,	or	serious	personal	injury.
•	Keep hands away from polishing area.  Follow this rule will reduce the r\
isk of cuts, 
scrapes, or serious personal injury.
•	Save	these	 instruction.		 Refer	to	 them	 frequently	 and	use	them	 to	instruct	 others	who	
may use this tool.  If you loan someone this tool, loan them these instr\
uctions.
  USE PROPER EXTENSION CORDS
Use only three-wire extension cords that have three-prong grounding-type plugs and 
three-pole receptacles that accept the tool’s plug.  Make sure your extension cord is in 
good condition.  Replace or repair damaged or worn cord immediately.  When using an 
extension cord, be sure to use one heavy enough to carry the current you\
r product will 
draw.  An undersized cord will cause a drop in line voltage resulting in loss of power and 
overheating.  Below table shows the correct size to use depending on cor\
d 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 (120V )
25ft50ft100ft 
More ThanNot More ThanAWG
0618 16 16
61018 1614
10121616 14
12161412Not Recommended
  GROUNDING INSTRUCTIONS
This tool should be grounded while in use to protect the operator from e\
lectric shock.  The tool 
is	equipped	 with	a	three-conductor	 cord	and	three-prong	 grounding	type	plug	 to	fit	the	 proper 	
grounding type receptacle.  The green (or green and yellow) conductor in the cord is the 
grounding wire.  Never connect the green (or green and yellow) wire to a live terminal.