4.
Maintenance
Befo~e
carrying
out
any
maintenance
work
always
remember
to
pull
out
the
plug.
Every
100
duty
hours blow
or
brush
out
the
tool
with
special
attention
to
carbon
brush holders
and
insulated
parts
in
order
to
guarantee
the
safety
given
by
the
protective
insulation.
After
checking
the
carbon
brushes
make
sure
th
at
they
move
easily in
their
holder.
They
should be replaced
at
the
latest
when
the
y h
ave
worn
down
to 7
mm
(1/4"). Please,
only
use original
FEIN
carbon
brushes
(Order
Reference
EZ
11-59).
After
fitting
new
brushes,
ru
n
tool
unloaded
for
about
15
minutes
to
allow
brushes
to
bed in.
On
e
pair
of
spare
carbon
brushes will be
found
in
the
cover
of
the handle,
ple
ase,
do
not
forget
to
reorder
them
in
time.
In
order
to
prevent
accidents check cable
at
re
gular intervals.
To
re
place
the
cable take off
the
screws (24, 25),
then
tak
e off
the
hand
le
co
ve
r (20), loosen
the
t
wo
screws (19)
of
the terminal clamp
(1
8)
and
clamp
off
the
cable
from
the
switch (2).
5. Lubrication
We recommend
to
renew
th
e gear grease
af
ter
300
duty
hour
s.
Plea
se
only
u
se
the
Fein special grease
FG
1.
For
ball
bearings which s
hou
ld
be lubricat
ed
afte
r
approx.
900
dut
y hours
we
recommend
our
ball
bearing grease
FK
3.
The
ball
bearings
are
to
be rinsed
in
clean s
olvent
and
packed with
ne
w grease.
The
space
between
inner
and
outer
ring
is
to
be
one
third filled
with
grease
in order that
the
bearings
do
not
overheat.
I Grease tubes I
Contents
Type
of
grease
order
N°
oz
I g
-~~--
-
I
!'&+
fm
gem
JO
Ji
MZ
60-3
/FG
1 I 22
/a
80
I ·FK--s·
for
ball b
ear
in
gs
MZ
60-1/FK
3 1
/a
10 I
":".?.
No
claims can be
entertained
for
damage
du
e
to
negli
ge
nt
mai
nt
e
nanc
e
and
inadequate
lubrication
.
6.
Overhaul
After
900
dut
y hours
the
machine should be completely
dismantled
as described
under
pa
ragraph
7
and
all
parts
should be
thoroughly
cleaned. Rinse ball bea
rin
gs
an
d gears in clean solve
nt
a
nd
pack w
ith
fresh grease as
per
paragraph
5.
Please
be
sure
that
all
electric
parts are
only
cleaned
dry.
7.
Dismantling
The
tool should
only
be taken
apart
by a skilled
wo
rker
.
1.
Unscrew
fillister
head
screw (25)
and
the t
wo
cy
li
ndr
ical screws
(24),
then
take
off
handle
cov
er
(20).
2.
Remove
supply
cable
from
switch, dr
aw
out
switch
and
discon
nect
motor
cable.
After
unscr
ew
ing
the
screws (10)
draw
out
carbon
holder
(5),
un-
sc
re
w screw (4)
and
pull
out
radio interference
capacitor
(3).
3. T
ake
off
cy
lin
drical screws (58
an
d 59), remove
out
er
b
earing
(35)
with
intermedi
at
e bearing (34).
4.
Pull
out
a
rm
ature
(26), unscrew the three screws (
31
)
and
remov
e
armature
dri
ve
(30).
5.
Draw
in
s
ul
ation
ring (15)
out
of
motor
housing (1), unscrew
cy
lin-
drical screws (1
4)
and
remo
ve
pole
housing (12).
Re
-asse
mbl
e
in
re
verse
se
qu
ence.
Please
bear
in
mind
that
existing washers
ar
e
to
be
placed
in
t
he
right
places.
Their
lo
ss
wou
ld
lead
to
dam
age.
8. Repair
and
spare
parts
We recommend
our
Fein Service
Sta
tions
to
ca
rr
y out all
overhaul
and
rep
a
ir
w
or
k quickly a
nd
expe
rtl
y.
Please
quote
Order
Reference
when
ordering
spare
parts
or
send
in
sample
part.
We d
raw
yo
ur
atten
tion
to
the ne
ed
to ca
rry
out
a high
voltage
test
in
accordan
ce
wit
h y
our
local regulations (
or
VDE
regu
lation 0740)
before t
ak
in
g a tool
into
service a
ft
er any
repair
carried
out
by y
our
own
staff.
U
se
U nl
vmsa
l
Gro:'lse
t
ype
Sst
1
l
nsto~
j I
v~i!L/
l
i)-
FG
1
use
sr
~.:te
FG
12
Jofgc
~ring.
/ /
C.
u.
E.
FEI