Quality Considerations

(1) The surface rust, oil stains, burrs on the wall of the bolt holes, welding flashes, etc. should be cleaned up.

(2) After the contact friction surface is treated, the specified anti-scratch coefficient requirements must be met. The high-strength bolts used should have matching nuts and washers, which should be used in accordance with the matching and should not be interchanged.

(3) When the friction surface of the treated component is installed, it is not allowed to be stained with oil, soil and other sundries.

(4) The friction surface of the module should be kept dry during installation and should not be operated in the rain.

(5) Strictly check and correct the deformation of the connected steel plates before installation.

(6) It is forbidden to hammer into the bolt during installation to prevent damage to the bolt thread.

(7) The electric wrench, which is regularly tested during use, ensures the accuracy of the torque and operates in the correct tightening sequence.

Main safety technical measures

(1) The size of the wrench of the adjustable wrench should be consistent with the size of the nut, and the sleeve should not be added to the small wrench. A dead wrench should be used for high-altitude work. For example, when using an adjustable wrench, use a rope to fasten it, and people should fasten their seat belts.

(2) When assembling the connecting bolts of steel components, it is strictly forbidden to insert your hands into the connecting surface or touch the screw holes. When picking and placing the bolster, your fingers should be placed on both sides of the bolster.