Fein ASb 110, ASb 110 K Operating Instruction
ASb
110
To
be
handed
to
the
workshop!
Operating
instruction
for
the
Impact
Wrench
type
ASb 110
(three
phase
A.
C.)
and
ASb 110 K
(42
Volts)
1.
Technical
Data
Type
of
current:
3 ~ (A.C.
three
phase)
50
cycles
for
screws
up
to
Max.
Torque
I
Type
mm
I
in
.
kpm
llbs.
ft
I
ASb
110
}
1
3
/t6
30
50
360
ASb
110 K (42 V)
2.
Construction
The
percussion
mechanism
of
the
Impact
Wrench ASb
110
is
driven
by a robust,
fan-cooled
AC-motor.
All
housing
parts
are
made
of
light
alloy,
the
two
side
handles
of
high
quality shock-
proof
plastic
material.
Gearings
and
percussion
mechanism
are
mounted
in
the
tool-head.
The
construction
is
well-balanced
and
clear.
The
tool
holder
complies
with
international
standards
and
has
a 1" (25,4 mm)
square
drive.
The
impact
wrench
can
be
adjusted for
clockwise
and
anticlock-
wise
rotation.
The
reversing
switch
is
mounted
in
the
left-hand
handle
and
must
only
be
operated
at
standstill
of
the
machine
.
3.
Mode
of
Operation
The
motor
drives
the
tool
holder
with
tool
attached
via
gearing
and
percussion
mechanism.
The
direct
drive
is
cut
out
as
soon
as
the
screw
or
nut
has
been
roughly
run
down.
Once
the
motor
reaches
its
rated
load,
the
percussion
mechanism
comes
into
operation
and
converts
the
drive
force
of
the
motor -which
continues
to
run
at
uniform
speed -into
an
intermittent
torque
with
two
strokes
for
each
revolut
ion
of
the
dri
ve
assembly.
Screws
and
nuts are
slackened
in
reverse
order:
first
percussion
strokes,
followed
by
direct
drive.
The
tool
is
easy
to han
dle,
as
the
operator
needs
not
exert
any
restraining
torqu
e.
As the
clutch will always
disengage
as
soon
as the
rat
ed l
oad
is
attain
ed,
the
motor
cannot
be
overloaded.
4.
Application
The
full
tightening
or
slackening
action
provided
depends
on
the
time
during
which
the
percussion
mechanism
is
allowed
to
run.
Max.
tightening
torque
is
the
sum
of
the
torques
applied
by
each
stroke.
According
to
the
type of
screwed
connection the
max
.
torq
ue
will
generally represent
between
60
and
120 single
torqu
e
strokes,
which
are
appli
ed
in 3 to 5 seconds.
Ava
ilable max.
torque
in
normal
service is 360
lbs.ft
(50
kpm) (see
diagramm
p.
4).
There
is
no
point
in
applying
the
tool
for
long
er
than
5
BE 163
/e
X 8.
66
Printed
in
Germany
I
Speed
R.P.M.
Taps
Input
Output
Net
weight
full
load
per
min.
Watts
Watts
lbs
I
kg
I
! I
780
1560
1100 740 27.8
12.5
seconds
since
the
torque will
not
increase
any
further,
while
the
tool
head
will
appreciably heat. Overheating
will
lead
to
incr
eased
wear
of
all
percussion
componen
ts
and
excessive
lubricant
consumption
.
It
is
not
advisable
to use
attachments
exceeding
8.9
lbs
in
weight,
since
the
tool
hold
er
seating
is
not designed
for
such
loads.
Attention!
Alwa
ys
secure
attachments
with
securing
pin
and
rubber
supporting
ring, otherwise
the
square-dri
ve
is
liable
to
break
.
5.
Maintenance
and
Lubrication
This will
depend
on
the
dut
y. The
following
instructions
are
for
continuous use
in
8-hour day
with
actual
tool
running
time
representing
40
Ofo
of
total
c!.uty
period.
The
tool
holder (54)
should
be
lubricat
ed
every other day
by
means
of the
oiler
(56)
at
the
outer
bearing
(55). (Use
machine
oil
or
thin-flowing
grease
.)
The
percussion
mechanism
should
be
completely
cleaned
of
old
grease
at
least
every
300
hours
(approx. 6 weeks).
For
this
pur-
pose
remove
the 6 screws
(60, 61).
then
take
off
theouterbearing
(55)
and
lift
the
percussion
mechanism
out
of th e
intermediate
bearing
without
taking
it
apart.
Then
apply
grease
FK 3 liberall
y
to
the
impact
fac
es
of
par
ts
(53)
and
(54).
Ball
pivots
(48) and
planetary
gearings
(45)
should
also
be
greased
w ith
FK
3. The
total
quantity
of
grease
in the
percu
ssion
mechanism
should
be
ap
prox.
150 g (5 oz.).
FK 3 is a high-grade
quali
ty
grease
and
is
suitable
for
all
percussion
mechanism
parts
because
of
its
good
heat
resistance.
Ball
bearing
grease
packings should
also
be
replenish
ed
with
FK
3.
If,
after
long
duty,
the
impact
dogs
of
percussion
piston
(53)
and
tool
holder
(54)
are
worn
they
must
be
reground
so
that
the
machine
reaches
its
full
tightening
torque.
Damaged
percussion
me
chanisms
should
be
dismantled
according
to
the
instru
ctions
of
page
4.
We rec
ommend
our
Fein
Service Stations
to
carr
y
out all
repair
work
of
this
kind
quickly
and
expe
rtly
.
lJJ~
ll);Niversat
Grease
type
Sst
1
llhetead
ot
oto-,er
types
o.t
grease
I
r-
,
I
I
I
I
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56
he
ad
offset
through
90°
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Impact Wrench
ASb
110
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