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To be
handed to
the workshop
Operating
instructions
for the Angle Grinder
MSf 679d, MSf 679c and for MSfa 679d,
MSfa
679
c with peak current limitation
1.
Technical Data
Type of
current:
~
(AC single phase)
Fuses
for 220 V,
MSf
679:
10 A slow or 15 A fast
or automatic
fuse 10
A type
G.
MSfa
679:
10
A slow or automatic fuse
10 A type Lor
automatic
fuse 16
A
type
H.
Type
Speed
Input
Output
Net
Weight
R.P.M.
Watts
Watts
lbs
I
kg
-
I
MSf679d
l
1400
14
6.3
MSfa
679d'
J
8500
2000
MSfa 679c'
}
MSf679c
6600
2000
1400
14
6.3
• available for 220 V
~
only.
"
or
5
/s" respectively
2.
Construction
The angle
grinders
MSf 679 and
MSfa
679 are
electric
tools of
Class
II
according
to
VDE regulations
0740. The
protective
insul-
ation is additional to
the normal insulation
and protects the ope-
rator against
electric
accidents
caused
by
defective normal
insul-
ation. The protective insulation is attained by the motor housing
made of Polyamide- shockproof and resistant
to
leakage
currents-
and
by insulating
the armature
against the pinion. The
machine
is supplied with
a
two-core cable
without earth wire and
must
not be
earthed.
The dustproof
switch
is mounted
in
the
handle.
The machine is
tested with the
prescribed test
voltage of
4000
V.
It
is radio suppressed according
to
radio
interference degree
VDE 0875. The bevel gear
have
helical teeth. Gears
are lapped
for
accurate meshing;
both parts to be
supplie
d as pairs only.
Gears and bearings
are
protected
against
dust
and
loss
of
grease.
Part of
the
cooling air
is led
by conductors through the gearing
in the gear
head
for
additional cooling.
To
prevent the overbridging of
the insulation
no
additional
marking
plates and signs must
be
riveted or screwed on the
housing.
We
recolnmend
the use of transfers
only.
3. Connection an
Operation
Main
voltage
must correspond
to
the
operating voltage
marked
on
the
rating
plate\
The tool
can
be
plugged
into plain
or safety
sockets. Switch must
be in the
"Off"
position when
connecting.
The
grinders
must
not
be
used
without
wheel
guards.
To
switch
on
the
machines
MSfa
679 d/c, the
lever
must
engage
the
notch (see
direction
label
on
the machine).
BE
242/e
BXEW
5.73
Printed
in
Gem1any
Grinding
w
heel
max.
Thread
peripheral
type
I
max.
dia
I
max.
width
I
bore
speed
of
in.
I
mm
in.
I
mm
in.
I
mm
ft/s
I
rn!s
spindle
flexible
7
178
3 /s
10
7/s
22.2
262
80
M14
..
grinding
wheel
9
230
3 /s
10
7
/s
22.2 262
80
M 14
''
Do
not exceed the dimensions
of
grinding
wheels
stipulated.
When
working
with crank
wheel
hold tool in
such
a position
that
the
grinding wheel
works
under
an angle of
15-30
°.
For
cutting off
use cutting
wheels
together
with the
prescribed
flanges and,
in
addition
to
this,
our wheel guard
with adjustable
support for cutting
off
stone.
Moreover
take
care that,
when cutting off, the handle is
screwed
into
the right-hand bore of
the
housing (seen
from
above) in
order to prevent the grinding dust from falling into the air-
intake
of
the machine.
Furthermore, the
handle
should
be
screwe
d into
the
righthand
bore of the housing (seen from
above) for cutting
off,
in order
to prevent the
grinding dust from being
thrown into
the
air
inlet
of
the
machine.
4.
Maintenance
The
angle grinder
requires
adequate
maintenance. Before
start-
ing
any maintenance
work
pull
plug
from socket.
After
3-4
weeks
the machine,
in
particular
carbon
holders
and
insulated parts, should be cleaned
of
carbon
dust
and dirt. This
is done
by
means
of a
brush
or
compressed
air.
Brush
gear automatically
releases. When
the
brushes
are
run
down
the
machine is
switched off. After
refitting
new carbon
brushes check
that
they
move easily
in
thei! holder.
Run
tool
unloaded for
about 15
minutes to allow
brushe~
to bed
in.
Please,
only
use
original Fein carbon
b rushes
Order Reference EZ
11-61.
In
order
to
prevent
accidents check cable
at regular
intervals.
To replace the
cable take off screw (88) and switch
lever
(87).
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