Atlas Copco ETV STR61-25-10 Produktanweisungen Seite 17

ETV STR61-25-10 EN Troubleshooting
Troubleshooting
Troubleshooting
If the nutrunner does not start:
Power Focus 600/6000
Is the unit switched on? Check the earth fault circuit breaker behind the front
door. Should it have tripped, make sure to find the primary fault before resum-
ing operation. Check that the wiring on the remote start connector is correct.
For further information see 9836 4954/9836 7446.
Power Focus 3000/4000
Is the POWER FOCUS switched on and in RUN mode? Check that the correct
POWER FOCUS is used (ST31/ST32/ST61/STR31/STR61-Tensor3-7, ST81-
Tensor8-9). Check the fuses for the drive part. Check Drive parameters, refer to
the User Guide of the POWER FOCUS/ drive unit. Check the earth fault circuit
breaker on the backside of the drive. Should it have tripped, make sure to find
the primary fault before resuming operation. Check that the wiring on the re-
mote start connector is correct. For further information see 9836 2258.
If the tool becomes very hot
With proper adjustment the tool can handle any normal line jobs that an opera-
tor sustains. What can cause overheating are combinations of some factors:
torque above rated, too low speed, too long ramp time (motor has to give high
torque for a long time), very high prevailing torque, very soft joints, short cycle
time. To correct, look over speed, ramp time, tightening strategy. One stage and
Ergoramp are most heat conserving when applicable. Please refer to the User
Guide of your POWER FOCUS. If the above corrections are not enough,
choose a tool of the next higher capacity.
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