LUM12 PR EN Safety and operating instructions
© Atlas Copco Industrial Technique AB - 9836 927100 00
5
For more information please read, Atlas Copco Industrial Power Tools cata-
logue Ordering No. 9837 3000 01.
Handling
Operating instructions
See figure in Service instructions
Tightening torque
For accurate operation and safety, the tightening torque of the screwdriver must
be adjuisted correctly in relation to the screw joint. Check the torque specifica-
tion for the actual joint.
The tightening torque is adjusted by altering the tension of the clutch spring.
Turn the protection ring until the hole in the clutch housing is free. Then turn
the out going spindle until you can see the keyhole in the adjustment washer.
Turn the adjustment key clockwise to decrease and anticlockwise to increase
the torque. After the adjustment, turn the protective ring back again.
Verification of tightening torque
Atlas Copco Torque Analyser, ACTA 3000, plus an appropriately-sized in-line
transducer, IRTT together with the available test joints are recommended equip-
ment.
Torque range of the clutch springs :
Each clutch spring gives a certain torque range. Don’t adjust the torque
over the maximum recommendation as that might result in improper func-
tion and faster wear of the clutch.
The torque range of each spring is easily identified by it’s colour.
Maintenance
For maximum performance
At tough working conditions – soft joints and max. setting – lubrication of the
air is recommended.
With extreme dry air the service life of vanes and machine performance might
be reduced. A daily supply of 0.1 – 0.2 ml oil into the machine inlet will im-
prove the machine performance. Alternatively consider an automatic lubricator
device, Atlas Copco oil fog lubricator DIM, or single point lubricator DOS,
which will improve the machine performance.
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