# 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 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 you decide that the electric motor is defect or in need of service, return the complete motor unit to Atlas Copco Industrial Technique for replacement.

Motors which have been opened by anyone else than Atlas Copco Industrial Technique will not be serviced.

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 the machine is used in heavy-duty operations. If the machine not is working properly, it should immediately be taken away for inspection.

When dismantling the tool always use the specially designed service tool 4080 0848 80, (two service tools are required).

Overhaul for small head (-SH) models: Overhaul and preventive maintenance is recommended at regular intervals, once per year or after a maximum of 100.000 tightenings, depending on which occurs sooner. More frequent overhaul may be needed if used at high torque, high cycle rate or long tightening time. If the machine is not working properly, it should immediately be taken away for inspection.