JUKI MF-7900-H22 Manuals

Manuals and User Guides for JUKI MF-7900-H22. We have 1 JUKI MF-7900-H22 manual available for free PDF download: Engineer's Manual

JUKI MF-7900-H22 Engineer's Manual (216 pages)

High-speed, Cylinder-bed Top and Bottom Coverstitch Machine

Brand: JUKI | Category: Sewing Machine | Size: 4.99 MB

Table of Contents
13
Specifications
15
Configuration of the Machine Components
16
Motor Pulley and Belt
17
Standard Adjustment
18
Threading the Machine Head
18
Adjusting the Rocking Thread Take-Up
20
Adjusting the Needle Thread Loop by the Eccentric Cam
22
Adjusting the Position of the Needle Thread Guide Rod
24
Adjusting the Position of the Thread Receiver
26
Adjusting the Position of the Spreader Thread Guide and Spreader Thread Take-Up
28
Adjusting the Spreader
30
Adjusting the Timing Relation between the Looper and Needle Bar
34
Returning Amount of the Looper
36
Height of the Needle
38
Locus and Longitudinal Motion of the Looper
40
Adjusting the Needle Guard
42
Adjusting the Feed Dog
46
Adjusting the Feed Relation
52
Adjusting the Presser Foot
56
Adjusting the Micro-Lifter
58
Adjusting the Looper Thread Cam
60
Adjustment Value of Balloon
62
With Regard to Lubrication
64
How to Change Needle Bar Stroke
68
How to Change the Spreader
72
MF-7500 Series/Mf-7900 Series How to Use the Timing Gauge
74
UT51, 52 (Solenoid Type Thread Trimmer)
76
Installing the SC-921
76
Adjusting and Setting SC-921
77
Adjusting the Looper Thread Trimmer Mechanism
82
Adjusting the Top Covering Thread Trimmer Mechanism
94
Adjusting the Needle Stop Position at Thread Trimming
96
UT55, 56, 57 (Pneumatic Type Thread Trimmer)
98
Installing the SC-921
98
Piping of the Thread Trimmer Device
100
Adjusting the Looper Thread Trimmer Mechanism
102
Adjusting the Top Covering Thread Trimmer Mechanism
104
Adjusting the Air-Blow Wiper (UT56)
106
Adjusting the Needle Thread Wiper (UT55)
108
Adjusting the Needle Stop Position at Thread Trimming
110
H22, 23 (Hemming Type (with Left Hand Fabric Trimmer))
113
Specifications
113
Adjustment
114
MC37, MC40 (Pneumatic Cloth Chip Suction Device)
121
Specifications and Features
121
Installation and Adjustment
122
PL12, 13 (Cloth Puller)
133
Specifications
133
Installation and Adjustment
134
Mf-7900-E11
142
Specifications
142
Adjustment Procedure of Engagement Amount of Knives
142
Adjustment Procedure of the Knife Pressure
143
Adjustment Procedure of the Knife Cutting Position
143
Adjusting the Engagement Angle of the Knife
144
Replacement Procedure of the Moving Knife and the Counter Knife
145
Adjustment Procedure of the Cloth Guide
145
Adjustment Procedure of Front-Up Amount of the Presser Foot
146
Adjustment Procedure of the Position of the Tape Guide
146
Installing the Accessories (Tape Guide Base, Tension Roller and Suction Pipe) Supplied with the Machine
147
Adjusting Procedure of the Position of the Tension Roller
149
Adjusting Procedure of the Position of the Tape Guide Base
151
How to Use the Knife Cancelling Mechanism
155
Mf-7900-E22/23
156
Specifications
156
In Case of Using E22
156
Installing Procedure
156
Adjustment Procedure
159
In Case of Using E23
160
Installing Procedure
160
Adjustment Procedure
162
With Regard to the Accessories (Tension Roller)
163
Installing Procedure
163
Adjustment Procedure
164
Mf-7900/Ut59
166
Specifications
166
At the Beginning
166
Installing the Accessories
167
Installing the Air Regulator
167
Installing the Manifold
167
Connecting the Cords
168
Setting Procedure of the Machine Head
169
Air Piping Drawing
170
Piping of the Thread Trimmer Device
170
Adjusting the Air Regulator
170
Threading the Machine Head
171
Adjusting the Looper Thread Trimmer Mechanism
172
Adjusting the Looper Thread Trimmer Air Cylinder
172
Adjusting the Engagement of the Lower Knife
172
Initial Position of the Looper Thread Trimmer Mechanism
173
Longitudinal Position of the Blade Point of Lower Knife
174
Adjusting the Height of the Lower Knife
174
Adjusting the Stopper
175
Adjusting the Thread Trimmer Sensor
176
SS Lever Unit
177
Installing the SS Lever Unit
177
Adjusting the SS Lever Unit
177
Setting the Upper Stop Position of the Needle Bar
178
Setting the Raveling Prevention Parameter
180
Adjusting the Thread Hook
181
Other Cautions
184
MF-7900D Dry Section
184
Application of Appropriate Grease
184
Adhesives Application Spots
186
Troubles and Corrective Measures
187
Drawing of Table
203
Semi-Submerged Type for the V-Belt Type
204
Semi-Submerged Type for the Direct-Drive Type
206
H22, 23 Table-Mount Type for the V-Belt Type
207
H22, 23 Semi-Submerged Type for the V-Belt Type
208
H22, 23 Table-Mount Type for the Direct-Drive Type
209
H22, 23 Semi-Submerged Type for the Direct-Drive Type
210
E11/E22/E23 for the Direct-Drive Type
211
E11/E22/E23 for the V-Belt Type
212
H22/H23-UT59 Semi-Submerged Type for the Direct-Drive Type
213
U11-UT59 Semi-Submerged Type for the Direct-Drive Type
214

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JUKI MF-7900-H22 Engineer's Manual (216 pages)

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