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4280i-6
Minerva Boskovice 4280i-6 Manuals
Manuals and User Guides for Minerva Boskovice 4280i-6. We have
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Minerva Boskovice 4280i-6 manual available for free PDF download: Instructions For Service Manual
Minerva Boskovice 4280i-6 Instructions For Service Manual (35 pages)
Brand:
Minerva Boskovice
| Category:
Sewing Machine
| Size: 13 MB
Table of Contents
Table of Contents
2
1 General Safety Instructions
3
2 Introduction
3
3 Head of the Sewing Machine
5
Hook and Hook Post
5
Description
5
Height Setting of the Hook
5
Setting the Distance of the Hook from the Needle
5
Angular Setting of the Hook (Timing)
6
Protection of the Needle and of the Hook Point
6
Setting of the Bobbin Case Opener
6
Dismantling of the Hook Post
8
Needle and Thread Mechanism
8
Description
8
To Check the Handwheel Angular Adjustment
8
Height Setting of the Needle Bar
8
Side Setting of the Needle Bar Holder)
9
Throat Plate and Its Post
10
Description
10
Side Setting of the Throat Plate Post and Setting of the Needle Bed Shifting
10
Front and Rear Guides of Needles
11
Description
11
Setting the Front Guide
11
Setting the Rear Guide
11
Thread Tensioners and Limiter
13
Description
13
Setting the Tension of Main and Auxiliary Tensioners
13
Setting the Tensioning Mechanisms of the Main Tensioners
13
Feeding Mechanism of the Needle Feed and of the Lower Feed Wheel
15
Description
15
Stitch Length Mechanism
15
Forward and Rearward Stitch Length Distribution (Rough)
15
Setting the Upper Eccentric
15
Forward and Rearward Stitch Length Distribution (Fine)
16
Setting of the Control Knob (Including the Stitch Length Limitation)
16
Lower Feed Wheel
17
Description
17
Feeding Clutches
17
Setting the Lever of the Second Step of Feeding(Angle, Position)
17
Setting of the Lower Eccentric
18
Setting the Engagement and Disengagement of the Clutches
18
Replacement of the Indented Belt
22
Top Roller
23
Forward, Rearward and Side Setting
23
Selection of the Top Roller Diameter
23
Setting the Gear Clearance and in the Mounting of the Top Roller
23
Replacement of the Top Roller
24
Setting the Presser Foot Lift
24
Bobbin Winder
25
Description
25
Setting the Bobbin Winder Stop
25
Setting the Friction Gear
25
Safety Clutch
26
Description
26
Setting the Disengaging Moment
26
Setting the Tensioning Roller of the Indented Belt
26
Replacing the Indented Belt
27
V-Belt, Motor - Head
27
Tensioning
27
Replacing the V-Belt
27
Driving Toothed Belt
27
To Exchange the Driving Toothed Belt
27
4 Thread Trimming
29
Description of the Trimming Mechanism
29
Setting the Pickup Roller
29
Setting the Cam
29
Setting the Fork
30
Setting the Moving Knife
30
Setting the Fixed Knife
30
Setting the Retaining Spring of the Hook Thread
31
Setting Switching of the Electromagnets
31
5 Lifting the Top Roller by Electromagnet
31
Description
31
Setting the Electromagnet Pin
31
7 Connecting the Electric Elements on the Machine Head
34
8 Drive, Control Panel, Position Sensor
34
9 Maintenance (Table of Operations)
34
10 Setting the Machine According to the Sewing Category
34
Table of Setting the Machine According to the Sewing Category
35
Table of Possible Stitch Widths of Needles According to the Sewing Category
35
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