1 inspection, test and maintenance of electric wrench
1.1 electric wrenches should be reliable earthing of metal, its shell should have periodic inspection and test certificate, and within the validity period.
1.2 check the electric wrench mounting screws fastening the fuselage and if thescrews loose, immediately to tighten, otherwise it will result in wrenchfailure.
1.3 check the handheld electric wrench side handle is intact, no crackingdamage, securely.
2 electric impact wrench use and operation points for attention
2.1 Verify that site power supply compatibility with the electric wrenchnameplate. Whether or not connected with earth leakage protective device.
2.2 according to the nut size select the matching socket and properly installed.
2.3 on the transmission confirmation of the wrench before switching off, or pluginto an electrical socket wrench will immediately turn unexpectedly, which maylead to personal injury hazards.
2.4 If the workplaces in location far from power, extension cable you need, youshould use the sufficient capacity, the extension cable is mounted. Extensioncable through a pedestrian underpass to be elevated or measures to avoid damageto the cable is rolled.
2.5 when used as far as possible to find a good anti-axis distance in case ofreaction hurts.
2.6 when an exception is found when using the electric motor carbon spark,should immediately stop working, check processing, troubleshooting. In additionthe carbon brush must be kept clean.
2.7 was working on a ladder or working at height should do a high fall, laddersshould be ground support.