Overhaul and preventive maintenance
An overhaul should be done once per year or after a maximum of 100.000 tightening. More frequent preventive maintenance and overhaul are needed if the tool is used in heavy-duty operations. If the tool is not working correctly take it out of service immediately for inspection.
At overhaul and maintenance:
clean all parts thoroughly
replace worn or defective parts
lubricate the threads and o-rings with grease before assembly
make sure that the threaded connections on the tool are tightened in accordance with the specifications on the exploded views