In the side of the table liftstar hand pallet truck should be black and yellow safety signs

In the side of the table should be black and yellow safety signs , lift platform must be installed in table and floor entrances and exits from the obvious position " without permission , shall not enter ," the warning signs .
5.3 inspection of metal structures
5.3.1 Important weld
Important visual inspection of weld tables, lifting devices , bearing steel , etc., should be smooth, plump , oxide should be divisible , without visible weld , cracks, slag , undercut Hand lifter crater , burn and not welded through other defects, weld geometry and dimensions shall comply with design patterns .
5.3.2 Butt welds NDT
Bearing steel butt welds shall comply with the design requirements , butt weld length should be 20% of non-destructive testing.
Ray examination in accordance with GB/T3323-2005 " metal fusion welded joints radiography " provides radiographic quality level of not less than AB , qualified at Level Ⅱ; ultrasonic Electric lifters testing in accordance with GB/T11345-1989 " steel welds manual ultrasonic testing method and classification of testing results "provides test grade of not less than B grade, qualified at Level Ⅰ.
5.3.3 There should be no structural members overall instability , severe plastic deformation and cracks and other phenomena
5.3.4 fasteners should be complete and securely locked
5.4 protective fence
5.4.1 Ground Fence
Lift height is greater than or equal to the lifting platform should be set 2m fence , fence height of not less than 1.8m. Safe distance from the fence and the lifting platform is not less than the values ​​in Appendix