(
MSio
870
To be handed to the workshop!
Operating instructions
for the High Frequency Angle Grinders
Type MSfo
870d,
c, b
and MSfo
870dK,
cK,
bK
(42
Volts)
1. Technical
Data
Type
of
current: 3 ph.
A.
C. 200/300
Cycles
Fre-
Grinding
wheel
Admissib
le
Thread
Speed
Input
Output
Net
weight
I I I I
pe
ripheral
qu~~cy
R.P.M.
Watts
Watts
lbs. I
kg
in~~:~m
in~F~m
in.
~;;
I
Type
ft
./
ssp
~
e~/s
spi~~le
1
------------+------+--
----~-----r
----~----+----+
----T-
---T
----
~
-----r----+-
----+-------
~--------
~~
----
---
Type
~~::
:~~:K
I 300 I 8600 I 3300 I 2420 I
!~.
6
~
~:~
I 7 1 178 1 3
/s
110 I 7
/s
122 I
:~i~!~~
I 260 I 80 I M
14
--
----
------
T-----
~
--
-
----
:
------T-----~--~----
~------
--
:
I 200 I 8600 I 2200 11620 I
!~.
6
~
~:~
I 7 1 178 1
3fs
I 10 I 7/s 122 I
:~i~!~~
I 260 I 80 I M
14
MSfo B70d
MSfo B70dK
MSfo
B70c
I
300
I 6600 I 3300 I 2420 11
1
:61
~:~
I 9
123
0 I
3fs
I 10 I 7/s 122 I
i~i~!~~
I 260 I 80 I M 14
MSfo B70cK
MSfo B70c I 200 I 6500 I 2200
11620
I
!~.
6
~
~:~
I 9 1230 I 3/s I 10 I 7
/s
122 I
:~i~!~~
I 260 I 80 I M
14
MSio
B70cK
MSfo
870b
MSfo
870bK
I 200 I 4400 I 2200
11620
I
!~.
6
~
~
:
~
18
5/a 1220 I -- I -- I 9
/,6
114,2 I
elastic
di
sc
I 260 I 80 I M
14
~--------~----~--~----~----~--~--~--~--~----~--~--~
2.
Construction
The
High
Frequency
Grinder
MSfo
870
is
a
high
capacity
tool
with
earth
cable
according
to
the
VDE
regulations
0740.
For
safety
reasons
the
machine
is
provided
with
an
earth
wire,
which
is
yellow
and
green.
At
one
side
it
is
connected
to
the
metal
housing
of
the
tool
and
at
the
other
side
it
must
be
con-
nected
to
the
protecting
contact
of
the
plug
.
Machines
for
42
Volts
(Class III)
have
no
earthing
conductor.
Gears
are
lapped
for
accurate
meshing;
both
parts
to
be
supplied
as
pairs
only.
Gears
and
bearings
are
protected
against
dust
and
loss
of
grease.
Part
of
the
cooling
air
is
led
by
conducts
through
the
gearing
in
the
gear
head
for
additional
cooling.
3.
Connection
and
Operation
First
check
that
details
on
rating
plate
correspond
to
those
of
the
high
frequency
supply.
To
avoid
overloading
of
the
grinder
we
recommend
the
installation
of
a
safety
switch.
Switch
must
be
in
the
"Off"
position
when
connecting.
Check
that
the
tool
rotates
in
direction
marked
by
arrow
on
the
machine,
otherwise
the
tool
may
become
loos
e.
To
check
rota
tion
switch
on
tool
briefly
.
If
it
does
not
follow
arrow,
reverse
by
changing
over
two
lead
s
in
the
plug.
BE
315 e
EW
2. 73
Printed
in
Germany
Please
see
instruction
BE
22
for
the
high
fr
eq
uency
installation
.
To
avoid
overloading
of
the
gri
nder
we
recommend
the
installa-
tion
of
a
safety
switch
(see
also
separate
inst
ruction
B 22).
Do
not
exceed
the
dimensions
of
grinding
wheels
stipulat
ed.
When
wo
r
king
with
crank
wheel
hold
tool
in
such
a
position
that
the
grinding
wheel
wo
r
ks
under
an
angle
of
15
-
30
°.
For
cutting
off
stone
use
our
wheel
guard
with
adjus
t
able
support
.
4.
Maintenance
and
Lubrication
The
ang
le
grinder
require
s
adequate
main
te
n
ance.
Before
star-
ting
any
maintenance
work
pull
plug
from
socke
t. To
replac
e
cable
see
instru
ct
ions
.
of
pa
ragr
aph
5,
sectio
n
2.
After
fitting
new
cable
check
con
nection
of
co
nductor
as
well
as
of
earth
wire.
The
gearing
should
be
particularly
well
greased.
E
ve
ry
300
working
hours
renew
gear
grease.
Use
only
the
prescribed
qualit
y FG 9.
To
prevent
mi
xture
of
greases
,
lubricate
the
roller
bearings
in
the
gear
head
also
with
our
special
grease
FG
9.
When
checki
ng
or
ren
ewing
t
he
grease,
take
out
sc
r
ews
(48)
on
bearing
cap
(3
5)
.
Take
of
f
complete
cap
with
drive
s
haft
(42)
and
remove
old
grease.
