Fein ASb 110 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 A Sb 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 revolution of the drive assembly.
Screws and nuts are slackened in reverse order: first percussion
strokes, followed by direct drive. The tool is easy to handle, as
the operator needs not exert any restraining torque . As the
clutch w ill a lways disengage as soon as the rate d load is
attained, 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.
torque will generally r e present between 60 and 120 single torque
strokes, which are applie d in 3 to 5 seconds. Available max.
torque in normal service is 360 lbs.ft (50 kpm) (see diagramm
p. 4). There is no point in apply ing the tool for longer 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
!
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780 1560 1100 740 27.8 12.5
seconds since the torque w ill not increase any further, while
the tool head will appreciably heat. Overheating will lead to
increased wear of all percussion components and excessive
lubricant consumption.
It is not advisable to use attachments exceeding 8.9 lbs in
weight, since the tool holder seating is not d esigned for such
loads.
Attention! Always secure attachments with securing pin and
rubber supporting ring, otherwise the square-drive is liable to
break.
5. Maintenance and Lubrication
This w ill depend on the duty . The following instructions are fo r
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 lubricated 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 liberally
to the impact fac es of parts (53) and (54). Ball pivots (48) an d
planetary gearings (45) should also be greased w ith FK 3. The
total quantity of grease in the percussion mechanism should be
approx. 150 g (5 oz.). FK 3 is a high-grade quality grease and is
suitable for all percussion mechanism parts because of its good
heat resistance. Ball bearing grease packings should also be
replenishe d 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
m e chanisms should be dismantled according to the instructions
of page 4. We recommend our Fein Service Stations to carry
out all repair work of this kind quickly and expertly.
lJJ~
ll);Niversat Grease
type
Sst 1
llhetead ot oto-,er types o.t grease I