Chain wear examined
CFTS asks how chain wear can be best monitored and measured?
When checking for chain wear and elongation CFTS requires its members to use a precision, self-calibrating chain wear gauge. Its view is measurements obtained using a steel rule or tape offer greater scope for error, so cannot be guaranteed deliver accurate, reliable and replicable results.
“Insisting on an accurate chain gauge is one of the operational methods that differentiates CFTS Thorough Examinations from most others,” says the body.
CFTS favours the chain gauge because its V-shaped jaws always give positive location on the pins, so that readings are always from the pin’s centre. This means results are both consistent and repeatable.
The need for accuracy is crucial because 0.25% wear measures just 0.75mm over 300mm. This can be the difference between an acceptable level of wear and a truck being taken out of commission.
