Pfaff COVERLOCK 3.0 - Machine Maintenance; Cleaning Procedures; Oiling the Machine; Replacing the Movable Upper Cutter

Stitch adjustments34
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• Type and thickness of the fabric
• Needle size
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2-thread overlock
When the lower looper thread lies on the underside of the
fabric
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When the needle thread tension is too loose 0RYHWKHQHHGOHWKUHDGWHQVLRQÀQHWXQLQJOHYHUEOXHRU
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2-thread overlock, wrap
When the lower looper thread tension is too tight or needle
thread tension is too loose
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When the lower looper thread tension is too loose 0RYHWKHORZHUORRSHUWKUHDGWHQVLRQÀQHWXQLQJOHYHU
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When the lower looper thread tension is too loose 0RYHWKHORZHUORRSHUWKUHDGWHQVLRQÀQHWXQLQJOHYHU
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When the upper looper thread tension is too loose 0RYHWKHXSSHUORRSHUWKUHDGWHQVLRQÀQHWXQLQJOHYHU
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When the needle thread tension is too loose 0RYHWKHQHHGOHWKUHDGWHQVLRQÀQHWXQLQJOHYHUEOXHRU
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3-thread overlock
When the upper looper thread lies on the underside of the
fabric
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When the lower looper thread appears on the top of the
fabric
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When the needle thread is too loose 0RYHWKHQHHGOHWHQVLRQÀQHWXQLQJOHYHUEOXHRUJUHHQWR
a higher position.