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Z-8550A
Brother Z-8550A Service Manual
128 pages
Manual
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Z-8550A
Z-8560A
Please read this manual before making any adjustments.
ELECTRONIC DIRECT
DRIVE ZIGZAG LOCK STITCHER
ELECTRONIC DIRECT
DRIVE ZIGZAG LOCK STITCHER
WITH THREAD TRIMMER
SER
VICE MANUAL
2
Table of Contents
Default Chapter
3
Safety Instructions
3
Maintenance and Inspection
6
Table of Contents
8
1 Machine Specifications
10
2 Sewing Pattern
11
3 Function Settings
12
Setting Memory Switches
12
List of Memory Switch Settings
13
Data Initialization
23
Resetting the Settings to Their Defaults
23
When Data Is Initialized Automatically
25
Error History Checking Method
26
Error History Display Examples
27
Software Version Checking Method
27
Version Update Checking Method
27
Checking Input and Output
28
Input and Output Checking Method
28
Input and Output Check List
28
DIP Switch Setting Method
30
Needle Zigzag Home Position Adjustment Procedure
31
4 Using Cf Cards
32
Precautions When Handling CF Cards (Commercially Available)
32
Structure of a CF Card Folder
32
Preparation for Reading/Writing Data
33
Reading Additional Sewing Data into the Sewing Machine
34
Writing Additional Sewing Data to CF Cards
35
Reading Memory Switch Data into the Sewing Machine
36
Writing Memory Switch Data to a CF Card
37
Updating the Control Program Version
38
Control Program Version Updating Procedure
38
Restoring the Control Program if an Error Occurs During Version Updating
39
Writing Error Log Data to CF Cards
40
5 Mechanical Descriptions
41
Needle Bar and Thread Take-Up Mechanisms
41
Lower Shaft and Shuttle Race Mechanisms
42
Zigzag Mechanism
43
Presser Foot Mechanism
44
Feed Mechanism
46
Lubrication Mechanism
49
Thread Trimmer Mechanism (8560A Only)
51
Tension Release Mechanism
52
Thread Wiper Mechanism (8560A Only, Optional Device)
54
6 Disassembly
55
Covers
56
Presser Foot Mechanism
57
Needle Bar Mechanism
57
Zigzag Mechanism
58
Rotary Hook Mechanism
60
Lubrication Mechanism
61
Feed Mechanism
61
Thread Trimmer Mechanism (8560A Only)
62
Thread Wiper Mechanism (8560A Only, Optional Device)
63
7 Assembly
64
Thread Wiper Mechanism (8560A Only)
64
Feed Mechanism
65
Lubrication Mechanism
66
Zigzag Mechanism
67
Needle Bar Mechanism
68
Rotary Hook Mechanism
69
Presser Foot Mechanism
70
Covers
71
Thread Wiper Mechanism (8560A Only, Optional Device)
72
8 CHANGING the FEED AMOUNT to LONG STITCH SPECIFICATIONS (from 2.0Mm to 5.0Mm)
73
9 Adjustments
76
Actuator Position
76
Adjusting the Safety Switch Position
77
Thread Tension Spring
78
Presser Foot Height
79
Feed Dog Height
79
Feed Dog Angle
80
Feed Dog Forward/Back and Sideways Position
80
Feed Amounts for Reverse Stitching and Condense Stitching
81
Needle and Feed Timing
81
Needle Bar Height
82
Needle Zigzag Forward/Back Position
83
Needle Zigzag Sideways Position
84
Needle Zigzag Load
85
Needle and Rotary Hook Timing
85
Bobbin Case Holder Bracket Position
86
Adjusting the Rotary Hook Lubrication Amount
87
Adjusting the Presser Foot Floating Amount (Minute Lifting Amount)
88
Adjusting the Treadle
88
Adjusting the Quick Reverse Device (8550A-A31, 8560A)
89
Adjusting the Tension Release During Thread Trimming (8560 Only)
90
Adjusting the Position of the Thread Trimming Cam (8560A Only)
91
Adjusting the Tension of the Plate Spring (8560A Only)
92
Adjusting the Thread Trailing Length after Thread Trimming (8560A Only)
92
Adjusting the Thread Wiper (8560A Only, Optional Device)
93
10 APPLYING GREASE (When "Greaseup" Appears)
94
To Continue Sewing Temporarily Without Applying Grease
94
Applying Grease
95
Resetting the Cumulative Operating Time
96
11 Electrical Mechanism
97
Precautions While Carrying out Adjustments
97
Control Box Internal Configuration
98
Description of Fuses
99
Power Supply P.C. Board (Fuses and Fuse Resistors)
99
Main P.C. Board (Fuses and Fuse Resistors)
100
Description of Connectors
101
Connector Positions
101
Troubleshooting
103
Troubleshooting Procedure
103
Diagnosis Flowchart
104
Remedy
106
Wiring Diagrams
110
12 Treadle Unit
112
Types
112
Standard Setting Values
113
Standard Settings for Treadle Depression Stroke
114
13 Standing Operation Pedal
116
Installing the Foot Plug
116
Connectors
117
14 Troubleshooting
118
15 Error Codes
123
16 Segment Display Definition Table
126
Other manuals for Brother Z-8550A
Instruction Manual
90 pages
Parts Book
70 pages
Brochure & Specs
6 pages
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Brother Z-8550A Specifications
General
Sewing Speed
5, 000 stitches per minute
Needle System
DP x 5
Power Requirements
220-240V, 50/60Hz
Type
Industrial
Stitch Type
Zigzag
Stitch Length
0-5mm
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