Alpha Tool.Com.HK Limited Grinder ECG125 User Manual

11
ADDITIONAL PRECAUTIONS FOR USING  
THE ECOGRINDER
In addition to the general safety notes described on the preceding pages, please read 
and observe the following precautionary notes before using the Ecogrinde\
r.
  DANGER!
 SAFETY ADVICE
•	 Please	note	safety	instructions	on	Page	3-5.
•	 Do	not	pierce	the	motor	housing	as	this	could	damage	the	double	insulation.
•	 Always	remove	plug	from	 the	outlet	 before	 making	 any	changes	 to	the	 settings	 or	
performing maintenance.
•	 Ensure	the	tool	is...

12
HOW TO GRIND
  WARNING!
1. During operation, be sure to wear safety glasses and hearing protection.\
2.  Some dust created when using this grinder contains chemicals known to cause cancer, 
birth defects or other reproductive harm.  Some example of these chemicals are:
  a. Lead based paints
 b. Crystalline silica found in cement, bricks and other masonry products
 c. Arsenic and chromium coming from pressure treated wood
 d.  Pesticides and other chemicals that could have been applied to the work \...

13
8.  Hold the unit tightly to prevent it from walking, and remove the high spots in the work 
surface from the top down.
9.  This grinder is designed to be used dry, if the surface is wet the dust will not be able 
to pass through the fan and a breakdown will result.
ECOGRINDER OPERATION
  CAUTION!
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...

14
CIRCUIT BREAKER
  CAUTION!
If the tool stops during operation you need to switch the unit off befor\
e resetting the circuit 
breaker.  Resetting the circuit breaker with the trigger lock on can cause an accident.
Note:  If the circuit breaker stops the tool repeatedly, this could be an indication that excessive 
pressure is being applied to the tool, slowing the motor and causing it \
to overheat.  
Use less force and allow the tool to do the work.  The circuit breaker c\
an also trip, if 
the carbon...

15
2. Make sure the ON/OFF switch is off.
–  If you plug in the power supply cord without realizing that the switch is ON, the 
machine will start and may cause an accident. Make sure the on/off switc\
h trigger 
is out and the locking button is not engaged.
3.  Inspect the protective wheel cover.
– Do not remove the wheel cover.  It will protect you if the grinding wheel 
breaks. 
–	 Be	sure	to	firmly	attach	the	grinding	wheel	or	any	optional	accessory.
4.  Inspect the grinding wheel.
–	 Check	if		you...

16
  ABOUT DOUBLE INSULATION
This machine is designed with double insulation. Two insulations are used between the 
conductor and the outer body of the machine.  An electric machine with the double insulation 
highly	improves	 safety	from	electric	 shocks.		 Do	not	 attach	 or	replace	 unspecified	 parts	and	
do not assemble incorrectly. This may cause the  insulation to malfunction.   
   LAWS AND REGULATIONS OF NOISE LEVELS
Please observe local laws and regulations regarding noise level in order\
 to...

17
With the slide cover as-
sembly open, the unit can 
now be pushed up against 
the wall allowing the hous-
ing to ride along the edge. 
(See Figure 6: Slide Cover 
Assembly Open).  With the 
slide cover assembly open, 
extra care should be taken 
to	hold	 the	unit	 flat	to	prevent 	
grooving along the wall.
Edge	grinding 	will 	work	 best	with 	our 	5”	 grinding 	wheel.		 This	configuration 	allows	 you	about 	
1mm clearance between the grinding wheel and the wall.
DUST HOSE AND BAG INSTALLATION 
1....

18
3. With the dust hose attached 
to the tool, you can now install 
the dust bag onto the dust bag 
holder.
4.  Open up the hook and loop strap 
and slide the hose end into bag 
until the end of the bag is even 
with shoulder on the hose end.  
Tighten the hook and loop strap 
so the strap is behind the raised 
lip	on	the	hose	fitting.
 5.  When in use, the dust bag and 
hose	 should	 lie	flat	 on	the	 ground.		 When	the	bag	 is	new	 it	will	 not	inflate 	
immediately.	 As	the	 pores	 in	the	 bag...

19
ECOGRINDER MAINTENANCE 
  DAILY
1. Before daily start-up inspect grinder, power cord, circuit breaker assembly, and grinding 
wheel looking for chips and cracks.  Inspect the dust bag for holes or if it is full and 
needs to be replaced.
2. If damage has occurred, repair affected areas before use.
3. Turn	the 	unit 	on 	to 	ensure	 that	the 	fan 	is 	running 	and 	the 	dust 	bag 	is 	inflating. 	A 	new 	
bag	will	not	inflate	until	the	pores	in	the	material	start	to	fill	with	stone	dust.
4. After daily...

20
REPLACING AND CHECKING THE CARBON BRUSHES
In order to keep your tool running correctly, you need to check your carbon brushes after 
every one hundred hours of use.  Carbon brushes wear out over time based on the grinder’s 
usage.  If a carbon brush is worn out, it may cause the motor to malfunc\
tion or fail to run.  The 
carbon brushes should be replaced before the twisted wire reaches the bottom of the slot.
 
  DANGER!
Be sure to unplug the power cord from the outlet before servicing the un\
it,...