User Manuals: Singer 771D3 Industrial Sewing Machine

Manuals and User Guides for Singer 771D3 Industrial Sewing Machine. We have 1 Singer 771D3 Industrial Sewing Machine manual available for free PDF download: Service Manual

Singer 771D3 Service Manual

Singer 771D3 Service Manual (66 pages)

Brand: Singer | Category: Sewing Machine | Size: 2 MB

Table of Contents

Table of Contents
3
General Characteristics
5
Specifications
5
Installation and Operation
7
Machine Positioning Lock
8
Speed
8
Direction of Rotation
8
Lubrication
9
Hook
9
Head End
10
Needles
11
Presser Foot Pressure
11
Stitch Length
11
Thread Tension
11
To Regulate Needle Thread Tension
13
To Regulate Bobbin Thread Tension
13
To Regulate Bobbin Winder Thread Tension
13
Threading
17
Needle
17
Winding Bobbin
17
Positioning the Machine
19
Tilting the Machine and Removal of the "V" Belt
19
Cleaning
19
Timing
21
Drop Feed
22
Timing the Hook
24
Setting
26
Check Spring - Height/Tension
27
Feed Dog Centralizing
29
Lateral Setting
29
Lengthwise Setting
29
Levelling
29
Clearance between Needle and Hook Point
31
Position Finger
31
Heedle Bar Height
33
Presser Bar
33
Adjustment of Presser Bar Height
33
Feed Reserving Mechanism
35
Limiting the Stitch Length
35
Bobbin Winder Drive Wheel
37
Bobbin Winder
37
Knee Lifter Shaft
39
Tension Releasing Device
39
Adjustment of the Needle Bar Frame
41
Adjustment of Needle Feed Relative to Drop Feed
43
Removal and Replacement
45
Presser Bar Spring Removal and Replacement
46
Needle Bar Removal and Replacement
46
Presser Bar Removal and Replacement
48
Thread Take-Up Mechanism Removal and Replacement
50
Arm Shaft Removal and Replacement
52
Needle Bar Frame Removal and Replacement
54
Hook Removal and Replacement
56
Hook Shaft and Hook Shaft Bushing Removal and Replacement
58
Feed Lifting Shaft Removal and Replacement
60
Feed Rock Shaft Removal and Replacement
62
Bed Cover Removal and Replacement
64
Timing Belt Removal and Replacement
64

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