■
SAFETY INSTRUCTION AND WARNING
FOR YOUR SAFETY, PLEASE FOLLOW
INSTRUCTION BELOW AND OPERATION
WITHOUT YOUR LOCAL REGULATIONS
MAY RESULT IN SERIOUS INJURY.
1. Before mounting grinding wheels and
whenever the tool is issued for servicing,
please DISCONNECT the tool from air
supply and make sure throttle returned to
OFF position.
2. If any vibration or unusual sound were
created, disconnect the air supply IMME-
DIATELY for repairing.
3. R.P.M. of the grinding wheels must be
equal or above to the free speed of our
grinder. Please refer to your wheels cata-
logue for details.
4. Check the grinding wheel diameter, shape
and permissible overhang.
(LESS THAN 13mm)
5. Always wear GOGGLES, FACE SHIELD
and other protective clothing.
■LUBRICATION
1. Lubrication is indispensable to air tools,
especially air micro grinders which are
rotating higher R.P.M. The most ideal
maintenance is to install one LUBRICA-
TOR to a tool for automatic oil feed, but if
it is not available, manual lubrication
EVERY 1-2 HOURS is recommendable for
long life. And this lubrication lasts the life
of tool and to keep the most efficient
function of mechanism and lack of lubri-
cation cause the troubles of machine.
2. To lubricate, add SPINDLE OIL (VG-10)
into the air feed intake.
■AIR SUPPLY
1. Air tools are adversely affected by MOIS-
TURE. Since air from compressor con-
tains much moisture and dust, it is desir-
able to provide a FILTER and lubricator in
the pipe line to remove such undesirable
elements. Also take the DRAIN out from
air tank every day.
2. When using brand new tool or air hose,
blow and clean the inside of air hose or
pipe before installation. Air drop maybe
cause by the lots of drain and dust
ac-cumlated and possibly makes the
inside diameter smaller in the long use.
Regular check-up is the secret of long life
of the tool.
3. Recommend to use at air pressure 0.55
MPa - 0.60MPa at the tool. Excessive,
higher air pressure leads to cut the tool life
and even dangerous to the operator and
lower air pressure will not give enough
power which cause of trouble shootings.
Use air regulator to adjust air to the
correct pressure.
■
HOW TO INSTALL THE GRINDING WHEELS
Grinding wheels being sold in the market
(with a shaft diameter 3mm) could be
acceptable with this tool. For your safety, use
grinding wheels operable at 55,000rpm or
more and with maximum grinding wheel
diameter 6mm or below. Beware of inferior
quality grinding wheels being sold in the
market with uneven shaft diameter, or which
are off-centered, the usage of which may
shorten tool life or serious damage of the
tool.
1. Insert the drive pin, lock go through the
hole at the end of the tool with the hole in
the collet shaft and hold the collet.
Then loosen the collet nut with spanner
(A/F 9mm).
SPANNER(A/F9mm) TOLOOSE
TOTIGHTEN
DRIVPIN,LOCK
2. Next, insert the grinding wheel and adjust
overhang will be less than 13mm.
LESSTHAN13mm
3. Hold the collet shaft again with the drive
pin, lock and firmly tighten the collet nut by
spanner (A/F 9mm).
■OPERATION
1. After lubrication, oil will be discharged in
the exhaust upon operation. Flush out air
motor for a few seconds.
2. The motor starts rotating at high speed
when the throttle is turned to ON direction.
Use the tool by pressing lightly against
work to be ground. To stop, turn the
throttle to OFF direction.
3. Precise adjustments have been made
around the throttle and rotating section.
Do not disassemble under any circum-
stances. As this tool contains precision
parts, avoid striking with other objects, fall
or gripping external body by vise or clump.
Improper rotation may result shortening
life of the tool.
SPECIFICATIONS MG55SR
FREE SPEED 55,000 r.p.m.
OVERALL LENGTH 180 mm
WEIGHT 220 g
FRAME DIAMETER 20.5 mm
AIR CONSUMPTION
0.16 m3/ min
RECOMMENDED
AIR PRESSURE 0.6 MPa
HOSE CONNECTOR
PT1 / 4
HOSE INNER
DIAMETER 6.35mm
ACCESSORIES
SPANNER (A/F 9mm)
1pc.
DRIVE PIN, LOCK 1pc.
GT-MG55SR
OPERATORS
MANUAL
GT-MG55SR
NUT, COLLET HOUSING, MAIN
CAP, FRONT END
THROTTLE
HOSE SET
AIR INTAKE
AIR EXHAUST
1.5m
0.3m
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