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Service
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ETVST101-100-13F
Service
Maintenance
Preventing ESD problems
The components inside the tool and controller are sensitive to electrostatic dis-
charge. To avoid future malfunction, make sure that service and maintenance is
carried out in an ESD approved work environment. The figure below shows an
example of an appropriate service work station.
Service recommendations
Overhaul and preventive maintenance is recommended at regular intervals. See
the Preventive maintenance section for detailed information regarding over-
haul of your tool and specific parts. If the machine is not working properly, it
should immediately be taken away for inspection. At the overhauls, all parts
should be cleaned accurately and defective or worn parts should be replaced.
Service instructions
Overhaul and preventive maintenance is recommended at regular intervals once
per year or after maximum 250.000 tightening depending on which occurs
sooner. More frequent overhaul may be needed if used at high torque, high cy-
cle rate or long tightening times. If the machine is not working properly, it
should immediately be taken away for inspection.
At the overhauls, all parts should be cleaned accurately and defective or worn
parts (i.e. O-rings) should be replaced.
Cleaning/Inspection
Clean all parts thoroughly in white spirit or similar cleaning agent. After the
cleaning, inspect all parts. Damaged and worn parts should be replaced.
Lubrication
Overhaul
Service must only be carried out by qualified personnel who have access to the
Service instruction and/or have been trained for service on Tensor ST Tools.
The electric motor is a sealed unit and may under no circumstances be opened
by anyone else than Atlas Copco Industrial Technique AB!
If it is judged that the electric motor is defect or in need of service, the complete
motor unit should be returned to Atlas Copco Tools for exchange.
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