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select 1520
Pfaff select 1520 Service Manual
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66
35.
Adjustment of bobbin winder stop
Requirement:
The bobbin winder must stop when the thread has reached a le
v
el of 1 mm belo
w the bobbin rim.
Check:
z
Wind a bobbin and chec
k that the winder stops as required.
Adjustment:
z
Loosen screw 123 (fig.
72).
z
P
osition stop 124 to the left f
or less thread and to right f
or more thread.
z
Tighten screw 123.
Cross-c
heck:
z
Wind a bobbin and chec
k that the winder stops as required.
67
69
Table of Contents
Default Chapter
3
Table of Contents
3
Contents
3
Foreword
5
Notes on the Sewing Machine in Relation to Environment, Handling, Cleaning and Safety
7
Specifications off PFAFF Machines
8
Removing the Housing Covers
10
Adjustment Instructions
15
Feeding System
15
Adjustment of Toothed Belt Tension
15
Adjustment of Feed Dog in Sideways Direction on Pfaff 1520
16
Adjustment of Feed Dog in Sideways Direction on Pfaff 1530-1540
18
Adjustment of Feed Dog Height
20
Adjustment of Presser Bar Height on Pfaff 1520
21
Adjustment of Presser Bar Height on Pfaff 1530-1540
22
Adjustment of Top Feed Foot in Sewing Direction
24
Adjustment of Top Feed Foot Height
26
Adjustment of Feed Regulator Cranks on Pfaff 1520 / 1530
28
Adjustment of Feed Regulator Cranks on Pfaff 1540
29
Zero Point Adjustment of Stitch Length Regulator
30
Timing of Feed Motion
32
Automatic Utility-Stitch Unit
34
Replacing the Automatic Module on Pfaff 1520 - 1530
34
Adjustment of the Locking Disk
36
Replacing the Zigzag-Stitch Unit on Pfaff 1520 - 1530
37
Basic Position of Setting Eccentric for the Sideways Needle Position
38
Adjustment of Needle Penetration in Needle Plate Slot
39
Adjustment of the Sideways Movement of the Needle Bar
40
Adjustment of the Stop for the Left Needle Position
42
Adjustment of the Feed Reversing Bar
44
Replacing the Utility-Stitch Unit on Pfaff 1540
46
Adjustment of the Gears in Relation to each Other
48
Replacing the Zigzag-Stitch Unit on Pfaff 1540
49
Basic Position of Setting Eccentric for the Sideways Needle Position on Pfaff 1540
50
Adjustment of Needle Penetration in Needle Plate Slot on Pfaff 1540
51
Adjustment of the Sideways Movement of the Needle Bar on Pfaff 1540
52
Adjustment of Zigzag Stitch Penetration in Needle Plate Slot on Pfaff 1540
54
Adjustment of the Stop for the Left Needle Position on Pfaff 1540
55
Stitch Forming Parts (Sewing Hook)
56
Adjustment of Needle Clearance in Needle Slot in Sewing Direction
58
Adjustment of Hook-To-Needle Clearance
60
30A. Adjustment of Bevel Gears
61
Sewing Hook Timing
62
Adjustment of Needle Bar Height
64
Adjustment of Bobbin Case Position Finger
65
Stitching off
66
Adjustment of Needle Threader
66
Adjustment of Bobbin Winder Stop
68
Adjustment of Bobbin Thread Tension
69
Adjustment of Needle Thread Tension
70
Adjustment of Thread Check Spring Stroke
72
Adjustment of Equal Stitch Length for Left and Right Buttonhole Seams
74
Adjustment of Equal Forward and Reverse Stitch Length
75
(For Forward and Reverse Controlled Utility Stitches)
75
Making up a Sewing Sample
76
Repair Instructions
77
Removing and Fitting the Needle Thread Tension
77
Changing the Pressure Spring in the Handwheel Release
78
Removing and Fitting the Sewing Hook
80
Cleaning and Oiling the Machine
80
Changing the Toothed Belt
82
Adjusting the Arm Shaft Crank
84
Changing the Bevel Gears
86
Changing the Motor
90
Changing the Motor Circuit Board on Motor Types UUS 390 and UUS
92
Changing the Carbon Brushes on Motor Types UUS 390 and UUS
93
Changing the Motor Pinion
94
Changing the Motor Toothed Belt
95
Changing the Circuit Board in Foot Control AE
96
Changing the Mains Connections in Foot Control AE
97
Safety Test
98
Electrical Safety Test
98
Electrical Safety Test with ABB Metrawatt M 5013
98
Simulated Leakage Current Measurements of Complete Motors with ABB Metrawatt M 5013
101
Measures Required in Case of Incorrect Readings
101
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Pfaff select 1520 Specifications
General
Brand
Pfaff
Model
select 1520
Category
Sewing Machine
Language
English
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