Cover Hook Wrinkling
Double Seam Components - Cause & Remedy

A wrinkle in the cover hook which projects toward the can body hook or outward from the center of the can. A looseness wrinkle can only be seen after the seam has been completely torn down.

Cover Hook Wrinkling Cover Hook Wrinkling
Probable Cause Suggested Remedy
Loose 1st Operation Seaming Roll. Refer to the Parts List Instructions or Service Manual for adjustment procedures.
Loose 2nd Operation Seaming Roll. Refer to the Parts List Instructions or Service Manual for adjustment procedures.
Worn 1st or 2nd Operation Seaming Roll groove profile. Replace 1st & 2nd Operation Seaming Rolls. Refer to the Parts List Instructions or Service Manual for adjustment procedures.
1st Operation Seaming Roll groove profile may be too wide. Replace the 1st Operation Seaming Roll with a roll that has more narrow groove profile Refer to the Parts List Instructions or Service Manual for adjustment procedures.
Improper curl in cover. Discuss with Cover Manufacturer
Pre-wrinkle in seaming panel or curl of the cover. If there is an existing wrinkle in the seaming panel of the cover it cannot be ironed out regardless of how tight you set the 2nd Operation Rolls. Discuss with Cover Manufacturer