Pfaff hobbylock 4870 Owner's Manual - Page 55
Pfaff hobbylock 4870 Manual
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___________ underside A B I top side I undersi• de L I•< ,B topside un dersid e 2 thread overlook seam with converter Standard seam width with needle B = 5,7 mm (range from 5,2 - 7,2 mm) Standard seam width with needle C = 3 5 mm (rangefrom3- 5mm) Progr 1 or2 2 thread overlock seam (narrow or wide) FLATLOCK This illustration shows the 2 thread over lock seam with the thread tensions cor rectly set Ways of correcting the thread tensions Prog lor2 2 thread overlock seam (narrow and wide) FLATLOCK Looper thread A is set too tight (yellow tension) or needle thread B or C is too loose (green tension) The two thread tensions must be turned accordingly to + or- The looper thread A is set too loose (yel low tension) or the needle thread B or C is too tight (green tension) The two thread tensions must be turned accordin gly either to + or-. 'I top side 51