What might indicate a potential problem with a chain trencher before operation?

The presence of loose bolts or broken chain teeth is a clear indicator of a potential problem with a chain trencher before operation. When components of the trencher, especially those that are critical for its function like the chain, are damaged or not properly secured, this can severely impact the tool's performance and safety during operation. Loose bolts can lead to improper alignment or movement, while broken chain teeth can prevent the trencher from cutting efficiently or could even lead to further mechanical failures or accidents.

Addressing these issues before beginning operation is crucial to ensure both the safety of the operator and the effectiveness of the equipment. This preventive maintenance can help avoid costly repairs and downtime in the long run.