Tightening Torque - Atlas Copco S2452-P Sicherheits- Und Bedienungsanleitung

Safety and operating 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 spe-
cification 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
equipment.
Torque range of the clutch springs :
A
Each clutch spring gives a certain torque
range. Don't adjust the torque over the max-
imum recommendation as that might result
in improper function 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 service life of vanes and tool
power may be reduced. A daily supply of oil (0.1 -
0.2 ml into the machine inlet or consider an automat-
ic lubricator device of the type Atlas Copco oil fog
lubricator DIM or single point lubricator DOS, which
will improve the machine performance.
Rust protection and internal cleaning
Water in the compressed air, dust and wear particles
cause rust and sticking of vanes, valves etc. An air
filter should be installed close to the machine (se
'Air quality'). Before longer standstills, flush with
oil (some drops) into the air inlet, run the machine
for 5-10 seconds when absorbing the oil in a cloth.
Service instructions
Overhaul and preventive maintenance is recommen-
ded at regular intervals once per year or after maxim-
um 250.000 tightenings depending on which occurs
sooner. More frequent overhaul may be needed, if
used at high torque and long tightening times. If the
4
machine not is working properly, it should immedi-
ately be taken away for inspection.
The strainer at the air inlet and the exhaust silencer
should be cleaned frequently or replaced in order to
prevent clogging, which decreases the capacity.
At the overhauls, all parts should be cleaned accur-
ately and defective or worn parts (i.e. O-rings, vanes)
should be replaced.
Disassembling /assembling
It is important that the machines threaded connec-
tions are tightened properly; i.e. in accordance with
the specifications on the exploded views.
Cleaning
Clean all parts thoroughly in white spirit or similar
cleaning agent.
To prevent clogging and decreased power, it could
be necessary to clean the strainer (if used) and the
exhaust filter between the overhauls.
Inspection
After the cleaning, inspect all parts. Damaged and
worn parts should be replaced.
Lubrication
Lubricate specially gears, valve and clutch with
grease containing molybdenum disulphide (e.g.
Molykote BR2 Plus).
Lubricate o-rings and threaded connections with
grease before assembling.
Spare parts
Parts without ordering number are for technical
reasons not delivered separately.
The use of other genuine Atlas Copco replacement
parts may result in decreased tool performance and
increased maintenance and may, at the company
option, invalidate all warranties.
Grease guide
Brand
BP
Castrol
Esso
Q8
Mobil
Shell
Texaco
Brand
Molycote
© Atlas Copco Tools - 9836 4735 00
General purpose
Energrease LS-EP2 Energol E46
Spheerol EP L2
Beacon EP2 Arox EP46
Rembrandt EP2 Chopin 46
Mobilegrease XHP 222 Almo oil 525
Alvania EP2 Tonna R32
Multifak EP2 Aries 32
Clutch / Gears
BR2 Plus
S2452-P
Air Lubrication
Angle gears
Longterm 2 Plus