Parts Manual - English
Page 1
PARTS BOOK FOR BROTHER EF4-B561•B571 (P561102) Single Needle Twin Needle Overlock Sewing Machine BROTHER INDUSTRIES, LTD. NAGOYA, JAPAN
PARTS BOOK FOR BROTHER EF4-B561•B571 (P561102) Single Needle Twin Needle Overlock Sewing Machine BROTHER INDUSTRIES, LTD. NAGOYA, JAPAN
Service Manual
Page 2
... mechanism 23 Looper thread take -up and thread- TROUBLE SHOOTING 32 EHIDEI7REE Thread breakage (Overlock Stitch Needle) 32 Thread breakage (Looper Thread) 33 Skip stitching (Overlock Stitch) 34 Needle breakage 36 Improper thread tension 36 Wrong chaining-off (Overlock Stitch) 36 Excessive wrinkles 37 Slipage of cloth 37 DISASSEMBLING PROCEDURES 12 Cover 12...
... mechanism 23 Looper thread take -up and thread- TROUBLE SHOOTING 32 EHIDEI7REE Thread breakage (Overlock Stitch Needle) 32 Thread breakage (Looper Thread) 33 Skip stitching (Overlock Stitch) 34 Needle breakage 36 Improper thread tension 36 Wrong chaining-off (Overlock Stitch) 36 Excessive wrinkles 37 Slipage of cloth 37 DISASSEMBLING PROCEDURES 12 Cover 12...
Service Manual
Page 28
... an adjustment so that , when front cover 0 comes off front cover guide it is held securely by front cover supporter 410 and stopper spring 0. - 26 - Overlock Stitch Safety Stitch 4s. The following items from 0 to machine body and has a clearance about 0.5mm between front cover Q and front cover guide 0 to 0.5 to...
... an adjustment so that , when front cover 0 comes off front cover guide it is held securely by front cover supporter 410 and stopper spring 0. - 26 - Overlock Stitch Safety Stitch 4s. The following items from 0 to machine body and has a clearance about 0.5mm between front cover Q and front cover guide 0 to 0.5 to...
Service Manual
Page 34
... except when sewing thin materials, initial stitches may skip, the thread may break, and chaining-off thread break may occur. TROUBLE SHOOTING ❑1 THREAD BREAKAGE (Overlock Stitch Needle) CHECK POINT 1 Wrong threading. - 2 Excessive pressure of tension disc. 3 Poor thread quality. - 4 Needle groove or needle eye poorly finished 5 Wrong position of needle...
... except when sewing thin materials, initial stitches may skip, the thread may break, and chaining-off thread break may occur. TROUBLE SHOOTING ❑1 THREAD BREAKAGE (Overlock Stitch Needle) CHECK POINT 1 Wrong threading. - 2 Excessive pressure of tension disc. 3 Poor thread quality. - 4 Needle groove or needle eye poorly finished 5 Wrong position of needle...
Service Manual
Page 36
... proper 19 movement. Adjust to threading diagram. 2 Excessive pressure of over looper. 1 2 Top of tension disc. Adjust to proper timing. 18 - 34 - Da SKIP STITCHING (Overlock Stitch) CHECK POINT ADJUSTMENT PAGE 1 Wrong threading. Adjust to proper height. 17 Adjust to proper clearance. 18 Change it for a new one or smooth with...
... proper 19 movement. Adjust to threading diagram. 2 Excessive pressure of over looper. 1 2 Top of tension disc. Adjust to proper timing. 18 - 34 - Da SKIP STITCHING (Overlock Stitch) CHECK POINT ADJUSTMENT PAGE 1 Wrong threading. Adjust to proper height. 17 Adjust to proper clearance. 18 Change it for a new one or smooth with...
Service Manual
Page 38
... good quality. -.. Adjust to proper position. ----.• Adjust to proper position. ADJUSTMENT --' Use thread of needle guard. PAGE 28 24 • 25 WRONG CHAINING-OFF (Overlock Stitch) CHECK POINT 1 Wrong threading. 4 2 Excessive pressure of tension disc. 1 3 Too weak pressure of tension disc. 1 4 Wrong position of looper thead take-up. 1 5 Wrong position...
... good quality. -.. Adjust to proper position. ----.• Adjust to proper position. ADJUSTMENT --' Use thread of needle guard. PAGE 28 24 • 25 WRONG CHAINING-OFF (Overlock Stitch) CHECK POINT 1 Wrong threading. 4 2 Excessive pressure of tension disc. 1 3 Too weak pressure of tension disc. 1 4 Wrong position of looper thead take-up. 1 5 Wrong position...
