Inspect the foundation of iron towers: Check for signs of corrosion, softening, or detachment; during the rainy season, be mindful of any erosion near the foundation that could affect stability or uneven sinking of a support leg; in winter, be cautious of frost heave in low-lying or valley areas. To prevent frost heave, dig around the foundation and replace the soil with large stones. During spring and autumn, when winds are strong, be aware of any cracks developing between the foundation and the ground. Iron tower foundations in industrial zones are susceptible to corrosion from chemical factory emissions and should be given adequate attention. In areas prone to wind and sand, tower legs in low-lying areas are easily buried by sand and rust, which should be addressed promptly.

Inspect for any tilt in the tower, deformation or loss of all components. Mark the structural components under stress if auxiliary materials are missing: an increase in stress, yet the condition worsens. The rate of tower collapses due to the loss of auxiliary and inclined materials during operation is a shocking lesson. The operation department should stock a certain quantity of commonly used galvanized angle iron, cutting to size for the missing components as needed. Check for any peeling or rusting of the zinc coating (paint) on the components; inspect for any loose or falling bolts. Check for loose and worn-out parts.zuiA simple method involves tapping near the ground with a foot on the inclined materials. If there is a distinct impact sound on the tower, it indicates that there may be loose bolts.