Alpha Tool.Com.HK Limited Polisher VSP120 User Manual

							Model No.:  VSP-120
Alpha® Variable
Speed Wet Polisher Instruction Manual
MANUAL
WARNING: To reduce the risk of injury, user must read and understand instruction manual!
103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-01 14
www.alpha-tools.com
Version 5  
						

							ii
VSP-120 Overview ........................................................................\
...................... 3
  Specifications  ........................................................................\
................... 3
  Accessories ........................................................................\
...................... 4
Introduction  ........................................................................\
.................................. 5
  About Symbols  ........................................................................\
................. 5
General Safety Rules   ........................................................................\
................. 6
  Work Area ........................................................................\
........................ 6
  Electrical Safety ........................................................................\
............... 6
  Personal Safety ........................................................................\
................ 6
  Tool Use and Care  ........................................................................\
........... 7
  Service ........................................................................\
............................. 7
  Specific Safety Rules  ........................................................................\
....... 8
  Use Proper Extension Cords  ................................................................... 9
  Grounding Instructions  ........................................................................\
..... 9
  Additional Precautions for using the VSP-120  ....................................... 10
  Laws and Regulations Of Noise Levels  .................................................11
VSP-120 Variable Speed Wet Polisher Operation...........................................  ..12
  Main Connection  ........................................................................\
............ 12
  Switching On and Off ........................................................................\
..... 12
  Ground Fault Circuit Interrupter (GFCI) ................................................. 13
  Testing In-line GFCI Unit  ........................................................................\
 14
  Variable Speed Adjustment .................................................................... 14
  Speed Pot Feedback Sensor  ................................................................. 15
  Water Control Valve ........................................................................\
....... 15
  Side Handle Installation  ........................................................................\
. 16
  Customizing Splash Guard  .................................................................... 17
  Splash Guard Installation  ....................................................................... 18
  Profiler and other approved Spindle Attachments ..................................19
  Water-Feed Attachment  ........................................................................\
. 19
Maintenance  ........................................................................\
.............................. 20
  Daily ........................................................................\
............................... 20
  Periodic  ........................................................................\
.......................... 20
  Bearings and gears  ........................................................................\
........ 20
  Carbon Brush Replacement ................................................................... 21
  Rear Cover Removal  ........................................................................\
..... 22
Alpha® VSP-120 Schematic  ........................................................................\
..... 27
Alpha® VSP-120 Parts List ........................................................................\
....... 28
Services and Warranty Information  ................................................................... 30
Loaner Program ........................................................................\
......................... 30
Need More Information  ........................................................................\
.............. 30
Alpha® Tool Repair Service ........................................................................\
....... 31
Warranty  ........................................................................\
.................................... 31
Appendix A ........................................................................\
.................................... i
TABLE OF CONTENTS  
						

							1
VSP-120 OVErViEw
  SPECiFiCATiONS
Working Power Supply ......................................................Single-phase AC, 50/60 Hz
Voltage  ........................................................................\
......... 120V
Plug Type ........................................................................\
..... A (120V)
Amperage ........................................................................\
.... 7A
Wattage ........................................................................\
........ 800W
Motor ........................................................................\
............ Single-phase
No Load ........................................................................\
....... 500~2800 RPM
Polishing Disc Size ............................................................. 4”
Cord ........................................................................\
............. 10’ single-phase cable
Weight  ........................................................................\
.......... 7.3 Lbs
      
Machine/Cord/GFCI/Water-Line  
      Splash Guard
Speed Adjuster
Power Switch
In-line GFCIGarden  Hose Adapter Water Line
Center Water Feed
“C” Handle
Water Valve
Splash Guard  
						

							2
ACCESSORIES
COMPONENTS:
1.    Side Handle (Part No. 210074)
2.    Wrench (Part No. 210073)
3.    Band Clamp (Part No. 210088)
4.    Splash Guard (Part No. 210089)
5.    Spare Set of Carbon Brushes (Part No. 210048)
Figure-2

  
  
						

							3
iNTrODUCTiON
Thank you for purchasing the Alpha®  Wet Polisher.  Please read this instruction 
manual thoroughly to ensure safety and correct use of the polisher.  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  classified  into 
“DANGER”, “WARNING”, and “CAUTION”.
 DANGER!    Death or serious personal injury is imminent when   handling 
this polisher incorrectly.
  WARNING!     There is a possibility of death or serious personal injury when 
handling this polisher incorrectly.
  CAUTION!      There is a possibility of personal injury or property damage when 
handling this polisher incorrectly.
NOTE:   In some situations, failing to observe WARNING notes could result in d e 
a t h  o r serious personal injury.  Be sure to read and observe the safety notes to 
ensure safety and correct 
use of the polisher.
 ELECTRICAL SYMBOLS
The following show the symbols used for tool.
V     Volts
A     Amperes
W    Watts
Hz    Hertz
~ or a.c.  Alternating Current
n0    No load speed
…/min  Revolution or reciprocation per minute
kg    Kilograms
mm    Millimeters
lbs    Pounds
  Protective Earth  
						

							4
  CAUTION
The  following  are  important  notes  for  products,  operation,  and  maintenance 
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 
presence	 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	
tool.  Distractions can cause you to lose control.
ELECTriCAL SAFETY
•   
Grounded	 tools	must	be	plugged	 into	an	outlet	 properly	 installed	 and	
grounded 	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 grounded. 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 
body 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	
marked “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 serious personal injury.  
						

							5
•  
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.
•	 	 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 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  appropriate 
conditions.
• 
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 unstable 
and may lead to loss of control.
•	   Do not force tool, use the correct tool for your application.   The correct 
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,	
changing	 accessories,	 or	storing	 the	tool.  Such preventive safety measures 
reduce the risk of starting the tool accidentally.
•	  
Store idle tools out of the reach of children and other untrained persons. 
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.  
						

							6
•  
Use	 only	 accessories	 that	are	recommended 	by	 the	 manufacturer	 for	your 	
model . Accessories that may be suitable for one tool, may become hazardous 
when used on another tool.
SErViCE
1.  	
Tool 	service	 must	be	performed 	only	 by	qualified 	repair	 personnel.  
Service  or  maintenance  performed  by  unqualified  personnel  could  result  in 
a risk of injury.
2.    When	 servicing	 a	tool,	 use	only	 identical	 replacement	 parts.  Follow 
instructions 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
1.  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.
2.  	 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.
3.    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.
4.  	 Always	 wear	safety	 glasses	 with	side	 shields.  Everyday eye-glasses have 
only impact resistant lenses; they are NOT safety glasses.
5.   
Protect	your	lungs.   Wear a face or dust mask if the operation is dusty. 
6.   
Protect	 your	hearing.  Wear hearing protection during extended periods of 
operation.
7.  	
Inspect	 tool	cords	 periodically	 and	if	damaged,	 have	repaired	 at	your	
nearest	 Factory	 Service	Center	or	other	 Authorized	 Service	Organization.  
Constantly stay aware of cord location.
8.  	
Check	 damaged	 parts.  Before further use of the tool, a guard or other part 
that is damaged should be carefully checked to determine that it will operate 
properly and perform its intended function.  
9.  Check  for  alignment  of  moving  parts,  binding  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.  
						

							7
10. Do	not	 abuse	 cord.  Never carry the tool by the cord or yank it to disconnect 
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.
11.  Make	 sure	your	 extension	 cord	is	in	 good	 condition.    When  using  an 
extension  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 of power and overheating.
12.  Inspect 	for	 and 	remove	 all	foreign 	objects	 from	workpiece	 before	
polishing.  Follow this rule will reduce the risk of serious personal injury .
13.  Drugs,	 alcohol,	 medication,	 Do	not	 operate 	tool	 while	 under 	the	 influence 	
of	 drugs,	 alcohol,	 or	any	 medication.	  Follow this rule will reduce the risk of 
electric shock, fire, or serious personal injury.
14.  	 Keep	 hands	 away	from	polishing	 area. Follow this rule will reduce the risk 
of cuts, scrapes, or serious personal injury.
15.  	
Ground	 Fault	Circuit	 Interrupter	 (GFCI)	protection	 should	be	provided	
on	 the	 circuit	 or	outlet	 to	be	 used	 for	the	 tool.	  Receptacles are available 
having built-in GFCI protection and may be used for this measure of safety .
16.   
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 
instructions.
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 your 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 cord length and nameplate ampere rating. If in doubt, use the 
next heavier gauge. The smaller the gauge number, the heavier the cord.
  
Ampere Rating Total length of cord in feet (120V )
        25ft             50ft 100ft  
More Than    Not More Than         AWG
061816 16
6 101816 14
10 121616 14
12 161412
 Not Recommended  
						

							8
GrOUNDiNG iNSTrUCTiONS
This tool should be grounded while in use to protect the operator from electric 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.
ADDiTiONAL PrECAUTiONS FOr USiNG THE VSP-120
In addition to the general safety notes described on the preceding pages, please 
read and observe the following precautionary notes before using the polisher.
  DANGER!
1. 	 Check	the	working	voltage.  
Be sure the voltage available at power outlet matches specified voltage on 
the name- plate. If the polisher is used with higher voltage than specified, the 
motor will burnout. Any attempts to do so may damage the polisher or cause 
an accident or injury.
2.  Inspect	all	polishing	discs.	  
Never use cracked, chipped or damaged polishing discs.
3.  Hold	the	polisher	tightly	at	start-up.	  
Failure to do so may cause an injury due to high impact at initial start up.
4.  Stop	using	the	polisher	immediately	when	noticing	any	malfunctions	or	
any	suspicious	abnormal	noises.	  
  Turn the power switch OFF and contact your dealer or Alpha Professional 
Tools
®  for repair.
5.    Handle the polisher with care.   
 
If you accidentally drop the polisher, do not use it until checking that it is not 
cracked, deformed, or damaged in any way.
6.  Do	not	pour	water	or	any	liquids	onto	or	inside	the	polisher.	 
It may cause electric shocks.
7.  Do not hold the polisher in a vice.
8.  Do	not	touch	any	rotating	parts.	  
Never  touch the polishing disc of the polisher during operation with your 
hands.