Yamato VG3721-8 Manuals

Manuals and User Guides for Yamato VG3721-8. We have 1 Yamato VG3721-8 manual available for free PDF download: Instruction Manual

Yamato VG3721-8 Instruction Manual (52 pages)

High speed cylinder bed 3-needla interlock stitch machine with left hand trimming mechanism

Brand: Yamato | Category: Sewing Machine | Size: 2.09 MB

Contents
2
Safety Instructions
4
To Ensure Safe Use
4
Application and Purpose
4
Before Use
4
Maintenance, Inspection and Repair
5
During Operation
5
Removal
5
Meaning of Caution Signs
5
Alert Pictorial Markings
6
Warning Labels on Sewing Machines
6
Name of each Part
8
Installation
9
Table Cutting Diagram
9
Table Top Type
9
Motor, Belt and Pulley
12
Clutch Motor
12
Servomotor
12
Hanging Belt
13
Belt Cover
13
Eye Guard and Finger Guard
14
Thread Guide Plate
14
Accessories
15
Sewing Speed and Rotating Direction of Pulley
16
Lubrication
17
Lubricating Oil
17
Lubricating
17
Changing Oil
18
Checking and Replacing Oil Filter
18
Period of Changing
18
Procedure for Changing
18
Proper Operation
19
Needle System
19
Installing Needles
19
Threading
20
Looper Thread
20
Adjusting Thread Tension
21
Pressure of Presser Foot
21
Adjusting Position of Presser Foot
21
Adjusting Movement of Differential Feed Dog
22
Adjusting Stitch Length
23
Hemming Guide (Left)
24
Trimming Width of Fabric
24
Hemming Guide (Right)
25
Fabric Guide (Right)
25
Pressure of Walking Presser Foot
26
Raising Upper Feed Roller
27
Pressure of Upper Feed Roller
27
SP Device and HR Device
28
Cleaning the Machine
28
Adjustments
29
Needle Thread Tension
29
Needle Thread Eyelet
29
Needle Thread Guide
29
Top Cover Thread Tension
30
Looper Thread Tension
30
Needle and Spreader
31
Top Cover Thread Guide
32
Top Cover Thread Eyelet
32
Distance between Needle and Looper
33
Using Timing Gauge
33
Height of Needle
34
Needle and Front - and Rear Position of Looper
34
Needle and Needle Guard
35
Needle and Needle Guard (Front)
36
Height of Feed Dog
36
Changing Range of Differential Ratio
37
Presser Foot Lift
38
Replacing Fabric Presser
39
Feeding Amount of Puller
40
Pressure of Clutch Tension Spring
40
Trimming Mechanism
42
Adjusting Trimming Position of Fabric
42
Adjusting Suction Pipe
43
Adjusting Suction Pipe Cover
43
Removing and Resetting Lower Knife
44
Removing and Resetting Upper Knife
45
Adjusting Upper Knife Stroke
46
Sharpening Knives
47
Stop the Movement of Left Knife
48
Cancellation of Left Knife
49
Specifications
50

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