Page 19
INDEX PAGE 一、SAFETY PRECAUTION 1-1 WORK ENVIRONMENT 1-2 SAFETY IN INSTALLATION 1-3 SAFETY IN OPERATING 1-4 SAFETY IN MAINTENANCE AND REPAIRS 1-5 WARNING SIGNS 二、OPERATION GUIDE 2-1 THE FILLING OF LUBRICATION OIL 2-2 OIL CHANGE 三、ADJUSTMENT GUIDE 3-1 THE INSTALLATION & ADJUSTMENT OF LOOPER 3-2 THE CLEARANCE BETWEEN LOOPER AND NEEDLE PLATE 3-3 THE HEIGHT OF NEEDLE BAR 3-4 THE ADJUSTMENT OF LOOPER MOVED FRONT &...
一、SAFETY PRECAUTION Please read this manual carefully,also with related manual for the machine head before use. For perfect operation and safety,installing and operating this product by trained personal is required. When install and operate HVP-70 MINI SERVO MOTOR,precaution must betaken as the following.
Page 21
1-3 SAFETY IN OPERATING 1-3-1 When turn on the machine in the first time, use low speed to operate and check the correct rotation direction. 1-3-2 During the machine operated, please don't touch hand-wheel, needle, presser foot …… which are easy to injured parts. 1-3-3 Please don't operate the machine under to take out the Belt Cover and another safety advice 1-3-4 During machine be operated, please don't open the front...
1-5 WARNING SIGNS 1-5-1 These below symbols indicate a kind of dangerous, it may cause personal injury or machine's broken down. It's the reason that we indicate at dangerous place of machine. This symbol indicates dangerous This symbol indicates electrical warning which may cause finger &...
Page 26
3-1 The installation & adjustment of looper Warning ! Please switch off electric power before installation & maintenance. 3-1-1.Please check that the screw A couldn't jut out from the plane of looper holder B (Fig 1) and install the looper holder on the looper rocker shaft D (Fig 2) .
Page 27
3-3 The height of needle bar. Warning ! Please switch off electric power before installation & maintenance. 3-3-1.To lift the needle bar to the highest position. Please use the Measuring Gauge c to measure the height of longest needle to the needle plate in accordance with Fig 1 needle gauge.
Page 28
3-4 The adjustment of looper moved front & rear position. Warning ! Please switch off electric power Rear before installation & maintenance. 3-4-1.To turn the hand-wheel and move the looper rocker shaft a to the end (Fig 1). Then, to loosen the screw f and adjust feed rocker link h to the middle of feed drive/looper avoid lever groove.
Page 29
3-4-4.If the moving distance of looper rocker shaft from the beginning to the end is more or less than 2.4mm. (Fig 4) Please loosen the screw f (Fig 5) to adjust the distance. The distance will be decreased when the feed rocker link h is moved up. In the other way, the distance will be increased!! Fig 5 -10-...
Page 30
3-5 The adjustment of looper moved right & left position. Warning ! Right Please switch off electric power before installation & maintenance. Left 3-5-1.Please install the scale plate a to the front hole of cylinder bed and hold it up by screw b (Don't tighten it!). Please install the pointer d by screw c on looper g and close to the scale plate a.
Page 31
3-6 The distance between the looper moved right & left position and needle bar. Warning ! Please switch off electric power before installation & maintenance. 3-6-1.To turn the hand-wheel and move the 3.97mm needle bar to the highest position. Loosen screw s. (Fig 3) * *Remark : After installed the Measuring Fig 1 Gauges at Fig 1 &...
Page 32
3-7 The distance between the looper and needle. Warning ! Please switch off electric power before installation & maintenance. 3-7-1.To turn the hand-wheel and move the looper a to the left dead 4.76mm Right point. Please lock the needle c into the groove of Measuring Gauge b.
Page 33
3-9 The installation & adjustment of presser foot and top cover thread. Please switch off electric power Warning ! before installation & maintenance. 3-9-1.Please take adjusting screw a and lock nut b out. Loosen the screw c on the connecting bracket. Please don't loosen the screw d on the carrier hook sleeve whether assembled or disassembled.
Page 34
3-10 The adjustment of fabric cutter and presser foot. 3-10-2.How to adjust the pressure of moving knife spring and the front -rear position of knife blade. Loosen the screw d of knife guide collar e. Then, please push the upper knife holder h up and insert a 2mm pad between knife holder guide collar e and knife holder shank support f (Remark : The presser foot couldn't be moved when you push the knife holder h).
Page 35
3-11 The threading and adjustment. Please switch off electric power Warning ! before installation & maintenance. 3-11-1.Please follow the procedure A.B.C. to thread (Fig 1). 3-11-2.The thread have to pass the inside of thread tension disc (Fig 2A) and the bottom of stitch unlocking spring a when thread the B section (Fig 2).