Toro 25545T Operator's Manual page 52

Trench Systems and Equipment (continued)
Chain and Tooth Maintenance
• Always replace sprockets at the same time as the digging chain. The sprockets and the
chain are designed to work together. Replacing one without the other will cause
premature wear of the new part.
• Keep the digging chain sharp. Using dull, worn teeth will decrease production and
increase the shock load to the other trencher components. It can also cause chain
stretch, which leads to premature wear and failure.
• Maintain a proper amount of tension on the digging chain. If the machine is too loose or
too tight, efficiency decreases and the parts wear more quickly. Overtightening will cause
chain stretch and loss of machine performance.
• Use the tooth pattern most appropriate for the digging conditions. If conditions change,
contact your Authorized Service Dealer for information about the most effective chain
type and tooth pattern.
Operation: During Operation Page 5–15 3467-222 A