Damage Diagnostics on Chain Drives

Elongated Chain

Cause:

• Poor quality oil (e.g. water or dirt in oil, used oil)
• Lack of lubrication (blocked oil nozzles)
• Very high mileage
• Corrosion
• Blocked or not working tensioners
• Poor running shafts (do not turn smoothly)

Note: The damage can be detected by a well-run chain tensioner or by a test measurement of the chain pitch.

Contact Tracks On The Inner Links Of The Chain

Cause:

• Misalignment between the sprockets
• Poorly running shafts (radial stroke)
• Chain not running in the guide
• Rails mis-mounted
• Damaged sprocket

Contact Tracks On The Inner Links Of The Chain

Cause:

• Chain not running in the guide
• Rails mis-mounted
• Rails not sufficiently secured