AEC Colortronic MSH Series 2039 - Manual (Page 40)

C Series Granulators Troubleshooting 40 of 53
6-4 Mechanical Faults
Problem Possible Cause Possible Remedy
Excessive tension on the belt
drive Check tension of belt and
adjust as necessary Bearing overheating
Lubrication fault Check lubrication frequency
and recommended lubricant
Visible cracks in knife Incorrect grinding or
grinding procedure Check method of grinding
and contact our technical
sales department
Uneven knife seat surfaces Clean up to provide
maximum bearing surface Knives moving on knife
seats
Loose knife screws Knife screws should not be
used more than six times.
Replace if there is evidence
of stretch
Knives breaking Cracks caused by incorrect
grinding Contact our technical sales
department
Excessive knife wear Open knife setting Re-set knives
Screen breakage Incorrectly seated screen Check that the screen is
seated correctly and fully in
its cradle