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748
ELNA 748 Manuals
Manuals and User Guides for ELNA 748. We have
1
ELNA 748 manual available for free PDF download: Service Manual
ELNA 748 Service Manual (62 pages)
Brand:
ELNA
| Category:
Sewing Machine
| Size: 3.82 MB
Table of Contents
Table of Contents
2
General Directions and Recommendations
3
Needles
3
Safety
3
Threads
3
Recommendations
4
Mechanical Sewing Disorders
5
Skipped Chainstitches - Cover Hems
5
Skipped Overlock Stitches
5
Breakage of Needle
6
Irregular Stitches
6
Thread Breakage
6
Adjustment of the Automatic Tension Unit
7
Position of Program Selection-Display Drum Indicator
8
Position of the Display Drum Indicator
9
Upper Looper Shifting Cam
9
The Adjustment of the Chain Looper Tension Dial
10
Gauge for the After-Sales Service
11
Removing Machine Base Cover
12
Removing Back Cover
13
Removing Front Cover
14
Angular Position of Balance Weights and Position of Eccentrics
16
Position and Function of the Eccentrics
17
Height and Alignment of Cloth Presser Bar
18
Height / Orientation of Needle Bar in Relation to Needle Plate Holes
20
Height - Clearance - Angular Position of Lower Looper
22
Clearance of Needle Guards
23
Timing of Lower Looper
24
Angular Position of Upper Looper
26
Clearance and Timing of Upper Looper to Lower Looper 10
27
Chain Looper : Angular Position - Clearance - Orbital Timing - Clearance of Chain
28
Orbital Timing of Chain Looper - Eccentric
31
Lower Looper & Chain Looper Automatic Engagement
32
Chain Looper Thread Take up Rotary Cam
33
Setting for the Timing Adjustment
33
Height of Feed Dog
34
Moving Cutter and Vertical Feed Timing
35
Horizontal Feed Timing against Chainstitch Needle
37
Differential Feed
38
Differential Feed
39
Position of Fixed Cutter and Cutting Width Dial Setting
40
Position of Loopers Threads Take up Lever
42
Safety Device - Side Cover & Front Flap
43
Safety Device - Presser Foot & Needle Clamp
44
Adjustment of the Top Cover Device
45
Tools for Setting Sl/Df Dials
49
Setting Positions of Sl/Df Dials
50
Clearance between Feed Dog and Needle Plate
55
Trouble Shooting - Cover Hems
56
Cover Hem (Narrow & Wide)
58
Triple Cover Hem
58
Cover Hem Stitch Formations
59
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