ASSEMBLY AND OPERATION
APPLICATIONS
䡬
Removal of casting
fi
n and
fi
nishing of various type of
steel, bronze and aluminum materials and castings.
䡬
Grinding of welded sections or sections cut by means
of an acetylene torch.
WARNING
To avoid the risk of serious injury, NEVER use
this grinder with cup wheels and/or saw blades.
PRIOR TO OPERATION
1. Power
source
Ensure that the power source to be utilized conforms
to the power source requirements specified on the
product nameplate.
2. Power
switch
Ensure that the switch is in the OFF position. If the
plug is connected to a receptacle while the switch is
in the ON position, the power tool will start operating
immediately and can cause serious injury.
3. Extension
cord
When the work area is far away from the power
source, use an extension cord of su
ffi
cient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
WARNING
Damaged cord must be replaced
or repaired.
4. Check the receptacle
If the receptacle only loosely accepts the plug, the
receptacle must be repaired. Contact a licensed
electrician to make appropriate repairs.
If such a faulty receptacle is used, it may cause
overheating, resulting in a serious hazard.
5. Check your work environment
Ensure the following before operation;
䡬
No
fl
ammable gas, liquid, or object at worksite.
䡬
When grinding thin steel sheet it may cause a
high booming noise.
To avoid such noise, place a rubber mat under
the workpiece.
䡬
Clear the area of children or unauthorized
personnel.
6. Mounting the wheel guard
Be sure to mount the wheel guard at an angle that will
protect the operator’s body from injury by a broken
wheel piece.
[Installing
Wheel
Guard]
䡬
Slightly loosen the screw on the wheel guard.
䡬
Install the wheel guard to the packing gland,
turn it to the angle suitable for operation, and
make adjustment.
䡬
After the adjustment, ensure that the screw is
securely tightened on the wheel guard in order
to
fi
x it completely.
Wheel guard
Packing gland
Fig. 2
WARNING
If the wheel guard is not attached properly, a
broken wheel may result in and cause death or
serious injury.
7. Thoroughly check that the depressed center wheel is
free of cracks, splits and other abnormalities before
mounting. Make sure it is firmly clamped and has
been properly mounted. Refer to page 10 of this
manual for Depressed Center Wheel Assembly and
Disassembly
8. Test the grinder before using.
Before actually beginning the grinding work, test
the grinder by first clearing the area of all other
personnel. Make sure the wheel guard is in place and
that you are wearing eye protection. Turn the grinder
“on”, and make sure the grinder runs smoothly and
shows no abnormalities.
Duration of the trial run is as follows:
When depressed center wheel is replaced
.............................................. 3 minutes or more
When starting daily work
................................................1 minute or more
9. Use only properly rated depressed center wheels.
Use only depressed center wheels rated at
13,300/min or more.
Using a depressed center wheel rated less can lead
to wheel disintegration during operation and cause
serious bodily injury.
10. Check the push button.
Make sure that the push button is disengaged by
pushing push button two or three times before turning
on the grinder. (Fig. 5)
9
English
00Book̲G12SQ2.indb 9
00Book̲G12SQ2.indb 9
2019/07/01 10:23:04
2019/07/01 10:23:04