Table 4-1. Unit Maintenance Preventive Maintenance Checks and Services
Not Fully Mission
Visually inspect all parts of the main
Any part of the main
beams (1), lateral (2) and cross
beams, lateral and cross
members (3), and side and end beams
members, or side and end
a. A dent or bend that is greater than 3/
a. A dent or bend
4 inch (19 mm) in depth.
greater than 3/4 inch (19
mm) in depth.
b. A crack, break, cut, tear, puncture or
b. A crack, break, cut,
tear, puncture or corrosive
c. A missing, cracked or broken weld
c. A missing, cracked
at the juncture between any primary
or broken weld.