Alpha Tool.Com.HK Limited Polisher VSP120 User Manual

							9
9. Do	not	leave	the	disc	while	spinning	on	the	bench,	floor	or	surface	of	
your workpiece.  
It may cause an accident or injury.
10.  Attach	the	backer	pad	and	polishing	disc	correctly	by	following	the	
procedure in this instruction manual.  
 Attaching the polishing discs incorrectly may cause an accident.
11.  Observe	any	suspicious	abnormal	noises	when	a	polishing	disc	is	
attached	for	the	first	time	and	polisher	is	turned	ON.  
It may cause bodily injury if the polishing disc flies off.
12.  Do	not	touch	the	polishing	disc	while	spinning.  
The polishing disc spins very fast and you may hurt  yourself.
13.  Be	careful	of	your	surroundings	when	working	in	high	places.  
When working in high places, make sure there are no people below . Do not 
trap the power supply cord on anything or drop the polisher or any materials, 
otherwise, It may cause an accident.
LA wS AND rEGULATiONS OF NOiSE LEVELS
Please observe local laws and regulations regarding noise level in order to avoid 
disturbing surrounding areas.  Install a soundproof wall if required to comply with 
the local laws and regulations.  
						

							10
VSP-120 VARIABLE SPEED WET POLISHER OPERATION
Always  be  sure  that  the  tool  is  switched  off  and  unplugged  before  adjusting  or 
checking function on tool.
MAiN CONNECTiON
Connect  only  to  single-phase  AC  current  supply  and  only  to  the  main  voltage 
specified on the rating plate.
SwiTCHiNG ON AND OFF
Before plugging in the tool, always check the working voltage be sure that the voltage 
specified  is  on  the  name  plate.    Before  plugging  in  the  tool,  always  check  to  see 
that the slide switch actuates properly and returns to the “OFF” position when the 
rear of the slide switch is depressed.
Switching	on:
Switch can be locked in “ ON” position for ease 
of operator comfort during extended use. Apply 
caution when locking tool in “ON” position and 
maintain firm grasp on tool. Push power switch 
to the forward position until it locks into position 
as shown in Figure 3.
Switching	off:
Push down on power switch to release to the 
rear position as shown in Figure 4.
  DANGER!
  DANGER!
Figure-3
ON POSITION
OFF POSITION
Figure-4  
						

							11
GrOUND FAULT CirCUiT iNTErrUPTEr (GFCi)
   A  Ground  Fault  Circuit  Interrupter  is  built  in-line  with  the  power  supply  cord  to 
protect the operator from electric shock.
1.  GFCI Information .
    –   Alpha
®  Wet Polisher is provided with an in-line GFCI as a standard accessory 
for your safety, and to prevent possible electric shocks. It is strongly advised 
to test the GFCI on a regular basis.
Never	attach	a	damaged	extension	cord	to	the	polisher.
  NOTE:  Use the appropriate extension cord, see table on page 7.
When the GFCI trips, this could be the result of water entering the polisher housing.
Turn OFF the power switch, disconnect polisher from power supply and blow dry 
air inside the motor cover through the air vents.
Re-connect power supply and press the GFCI reset button. The polisher is ready 
to start working once the reset button is pressed down.
Always check that the GFCI unit is working correctly (reset, test, and reset) before 
using this tool. Do not use the tool if the GFCI is not working correctly. Do not bypass 
the GFCI if this condition occurs, a real shock hazard may exist.
If the GFCI fails to trip when the test button is pressed, or fails to reset, the device 
is defective and should replaced.
The GFCI is a safety device, do not use as an on/off switch.
  The  GFCI  on  the  tool  will  not  protect  you  if  you  cut  into  another  current  carrying 
conductor.
Do not use where water may enter GFCI case.
  DANGER!
  CAUTION!
  DANGER!
  WARNING!
  CAUTION!  
						

							12
TESTiNG iN-LiNE GFCi UNiT (Before Each Use Of The Polisher)
•  Connect polisher to a single phase AC power supply.
•  Verify that the indicator lens shows red (indicating output voltage).
•   
Press the test button to verify that the red in the indicator lens disappears.
•  Press the reset button to verify the red indicator is visible.
•  The GFCI is now ready for use.
DO NOT USE IF ABOVE TEST FAILS!
VAriABLE SPEED ADJUSTMENT
This polisher is equipped with a Variable Speed control that will allow the spindle 
speed  to  be  adjusted  from  500  RPM  to  2800 
RPM. Speed adjustment is controlled by rotation 
of the wheel as shown in the Figure 4.
NOTE- Wheel numbers are for reference point 
of motor speed (#1 is 500 RPM and #6 is 2800 
RPM).
Adjust  the  RPM  of  the  tool  to  match  the 
recommended RPM of the product being used.
  WARNING!
Indicator viewing lens.
RED  lens  shows  power  to 
polisher.
CLEAR lens shows no 
power 
to polisher.
RESET BUTTON
TEST BUTTON
Figure-5 Figure-6
INCREASE SPEED
DECREASE SPEED
Figure-7  
						

							13
SPEED POT FEEDBACK SENSOr
This polisher is equipped with a Closed Loop Feedback sensor that is attached to 
the speed pot.  When a load is applied to the tool, the sensor will re-adjust the RPM 
to maintain a constant speed.
wATEr CONTrOL VALVE
Adjust  the  water  flow  to  wet  the  stone  and  remove  waste,  excessive  spray  and 
mist  will  get  inside  the  tool  and  cause  premature  failure  of  the  tool  and/or  cause 
the GFCI to trip.
This polisher is equipped with a center water-feed system. Water flow to the spindle 
shower bolt can be controlled by throttling the valve stem as seen in Figure 8, Figure 
9 and Figure 10.
  CAUTION!
Water Valve in
closed position Water Valve in
half open position
Water Valve in full open position
Figure-8 Figure-9
Figure-10  
						

							14
SiDE HANDLE iNSTALLATiON
During  the  use  of  Alpha
®  Core  Bits  and  Profilers,  use  of  the  center  handle  is 
recommended. The center handle will allow the operator to have better control and 
ease of operation during these applications.
To switch from center handle to side handle, follow the steps below:
  CAUTION!
Figure-12
Figure-13
Figure-14 Remove both side crews from 
center handle.
Pull  handle  forward  and  clear 
of polisher.
Thread  the  sidehandle  into 
either  the  left  or  right  side  of 
the  polisher,  then  thread  one 
screw  into  the  opposite  side 
of the handle.  
						

							15
CUSTOMiZiNG THE SPLASH
GUArD
The splash guard can be cut to different 
heights according to the application to 
be performed.
Cutting:	 	 Using  a  pair  of  scissors  or 
other  cutting  instrments,  choose  the 
desired  height  according  to  the 
application to be performed adn 
cut  along  the  grooved  cut  lines, 
as shown in Figure-15
rECOMMENDED HEiGHTS:
Profiling:	   When using Alpha
®  
Profilers the splash guard can be 
used at its full height.
Polishing:   When polishing, you may cut the 
splash guard at one of the grooved lines for 
easier access to the workpiece.
Grooved Cut Lines
Splash Guard cut to
accomodate polishing
application
Full Height
Figure-16
Figure-17 Figure-15  
						

							16
SPLASH GUArD iNSTALLATiON
The  splash  guard  should  be  used  to  prevent  the 
water and dust from going inside the tool. Failure to 
do so can shorten the life of your tool and void the 
limited warranty.
1.   Install the rubber splash guard 
into  the  tool  so  that  the  lip  on 
the  splash  guard  fits  into  the 
groove  on  the  tool  and  the 
cutout  is  around  the  water 
fitting.
2.     Open  the  band  clamp 
completely  and  wrap  around 
the  splash  guard  under  the 
water fitting.
3.     Tighten the clamp until snug.
  CAUTION!
Groove
Figure-18
Figure-19
Figure-20  
						

							17
PrOFiLEr AND OTHEr APPrOVED SPiNDLE ATTACHMENTS
Do not leave threaded accessories on the spindle of the tool for extended periods 
of time, as this may result in making it difficult to remove these accessories.
The VSP-120 polisher has a 5/8”-11 center water-feed spindle thread.
To  attach  a  profiler  wheel  or  other 
approved spindle attachments, follow 
the steps below:
Screw the attachment onto the spindle 
by hand.
Tighten with supplied wrench.
NOTE : If attachment does not thread 
in freely, check threads on both 
surfaces for damage or dirt. Clean, 
repair or replace as needed to ensure 
a safe and tight connec- tion to the 
polisher.
WATER-FEED ATTACHMENT
Attach the polisher water-line fitting to any garden hose connection.
OPERATION
  WARNING!
To reduce the risk of electric shock, check the tool’s water supply system to ensure 
there  is  no  damage  to  the  seals  or  hoses. A  damaged  water  supply  system  may 
result in abnormal water flow to the tool which could be dangerous.
  CAUTION!
Figure-21
Figure-22  
						

							18
Always wear safety goggles or a face shield during operation. Never switch on the 
tool  when  it  is  in  contact  with  the  workpiece,  it  may  cause  an  injury  to  operator. 
Never run the tool without properly installed accessories.
Make sure that the water valve is closed. Connect the garden hose adapter to the 
water  source.  Make  sure  that  water  comes  out  when  the  water  valve  is  opened.  
Hold the tool firmly. Turn the tool on and begin your application. Apply slight pressure 
only. Excessive pressure will result in poor performance and premature wear.
MAINTENANCE
  CAUTION!
Always be sure that the tool is switched off and unplugged before attempting to 
perform inspection or maintenance.
DAiLY
1.  Before daily start-up inspect tool, power cord, GFCI, and backer pad or other 
spindle attachments.
2.  If damage has occurred, repair affected areas before use.
3.  Connect the tool to the correct power source and test the Ground Fault Circuit 
Inter- rupter (GFCI) before using the tool. Push the RESET button and confirm 
that the red light is on, push the TEST button and confirm that the red run light 
is off and push the RESET button to use the tool.
4.  Turn  the  unit  on  and  run  in  a  no-load  condition  to  ensure  that  backer  pad  or 
other spindle attachment is balanced.
5.  After daily use of the tool, clean and blow off the exterior of tool and around the 
rear air intake vents to remove any standing water or dust. Failure to do this 
will shorten the life of your tool, and could void your warranty .
PEriODiC
  WARNING!
Preventive  maintenance  preformed  by  unauthorized  personnel  may  result  in 
misplacing of internal wires and/or components which voids the warranty and could 
cause serious hazards.  We recommend that tool service and repairs not covered 
in the manual be preformed by an Alpha
® Repair Center.
  CAUTION!