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990B5
Singer 990B5 Manuals
Manuals and User Guides for Singer 990B5. We have
1
Singer 990B5 manual available for free PDF download: Service Manual
Singer 990B5 Service Manual (55 pages)
Brand:
Singer
| Category:
Sewing Machine
| Size: 1 MB
Table of Contents
General Index
3
Description
4
General Characteristics
4
Specifications
4
Installation and Operation
5
Index
5
Installation
6
Machine Pulley
6
Speed
6
Needles
8
Thread
8
Thread Tension
8
Presser Foot Pressure
8
Threading the Unwinder
10
Threading the Machine
10
Standard Settings and Adjustments
11
Feed Bars
12
Feed Dogs
12
Level
12
Height
12
Knives
14
Cutting Action
14
Width of Bight
14
Looper
16
Sidewise Setting
16
Setting Looper in Relation to Looper
18
Looper Four-Bar Linkage Mechanism
18
Front to Rear Setting
18
Spreader
18
Needle Carrier
20
Needle Guard
20
To Eliminate Axial Play in Needle Driving Shaft
20
Oil Pump Relief Valve
22
Rotary Shaft Axial Play
22
Thread Controller
24
Thread Take-Ups
24
To Adjust the Thread Take-Up
24
Removal and Replacement
26
Feed Mechanism
27
Knife Mechanism
29
Looper Mechanism
31
Oil Pump
33
Rotary Shaft
35
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