Functional Test
The functional test is done on the GFA module disconnected from the tool.
Perform a functional test before the first tightening operation and after any performed maintenance activity.
To perform a functional test:
Turn the output gear wheel by hand or by using a socket. Turning it in one direction should lock the wheel. In the other direction the gear wheel should be turned easily. The direction for locking (clockwise or counterclockwise) depends on the configuration of the specific GFA module.
If it is hard to turn, open the housing and check that all components are in the correct position. If issues persist, contact Atlas Copco Customer Center.
Lubricate the system.
