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7.
Large grinding wheel flanges with intermediate
security-disks
for the grinding machines .. ,
因：
On these models on which the grinding wheels
have a
diameter
of
150 mm, being new,
are
mounted large grinding
wheel
flanges
with
1n 也 ermediate
security-disks.
In
addition
we are always
supplying
，也 ogether
with
也he
large
ones, a pair of small grinding wheel flanges with the corresponding
intermedia 也 e
securi 也y-disks
which may be used when the grinding wheel
is worn down up to ce
r也 ain point 土n
order 也 o
substitu 也 e 乞he
large
ones.
The
intermediate security disks
consist
of special, tough, black
gum
quality
wi 乞h
a kind
of
clo
也h pa 毛也 ern
on
both sides.
The
in也 er～，
mediate disks
are
to make
a fas
也 and
elastic
connec 乞 ion between 也he
grinding·wheel and the
flanges
in
order
也o preven 也 the
grinding wheel
from burs
也 ing
to pieces,
what is very
likely
to
happen
without
them
in the
case the
grinding wheel has
got
。 racks passing 也hrough i 也 s
bore
.
The
intermediate security
disks
ares
也ored
or
are
也o
be
s 也ored
in a
cool
and
dark place
and shall
be
也 aken
out of
i 也 s
package
only
when 也hey
are
going to be used
．工ntermediate
security-disks
which
are
older 也ban
3
years,
are
not
allowed 也o
be used any longer (for
date of manufacture see package).
The grinding wheels are not
permit 也 ed
to have paper flanges. In
the case
也hey
do so, the paper flanges must be removed.
Af 也 erwards
clean 也he
sides of the grinding wheel, if necessary, by means of a
wire brush and hot water in
order 也 o
open well its pores.
Before you begin
moun 也 ing 也he
grinding wheel on the flanges,
make a sound
也e
st.
For this purpose
put 也he
grinding wheel on a bar
in 也he
way that it may move freely and tap
a也 i 也 s
lightly
wi 乞h
a
malle 也 or,
in case of thinner ones,
with 也he
knuckle of your finger.
Undamaged vitrified or mineral grinding wheels will produce a. clear
sound.
On mounting the grinding wheel, make sure
tha 也 it
can be put by
hand and without difficulty on the
grinding 龟pindls,
but note that
the play between the bore of the ~rinding wheel
and 也he
grinding
wheel spindle will be not too large, because in this case there is
the risk that the grinding wheel may be
mouni二e
d eccentricaiiy.
When changing the flanges, take
grea也 care
of cleanliness s
。
也ha 也 grindin.g
dust or other impurities an not allowed to enter the
bearings of the grinding wheel spindle owing to
diri与y
flanges.
In
addi 才t-.ion,
make sure, handling or
s 也oring
the flanges, that
they
won '也 be
damage
u.
According 也o 乞he
laws for accident prevention each grinding
wheel has 乞o be submitted, a也 least，，乞o a
5
min.
Test
run
after its
mounting or remounting and during this period no incompetant is
allowed to enter the danger ares.
12
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