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Brother Manuals
Sewing Machine
DB2-B773-003
Service manual
Brother DB2-B773-003 Service Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Names of Main Parts
Specifications
Mechanical Descriptions
Feed Mechanism
Feed Adjusting Mechanism and Quick Reverse Mechanism
[§]Upper Feed Mechanism and Shirring Mechanism (Subclass -006)
Lid Tension Release
Thread Wiper (Subclasses -400, -900)
Automatic Presser Bar Lifter Mechanism (Subclass -900)
Disassembly
[I]Machinecovers
Rotary Hook Mechanism F.slthreadtrimmer
1!1 Rotary Hook Mechanism 19
[§] Feed Mechanism
Needle Bar Mechanism
Assembly
Needle Bar Mechanism
Rotary Hook Mechanism
Presser Foot Mechanism
Machine Covers
Adjustment
[I] Adjusting the Timing between Needle and Rotary Hook
[L] Adjusting the Timing between Needle and Feed
1!1 Zeroing Feed Regulator and Adjusting Reverse Lever
Adjusting the Timing of Upper Feed Horizontal Movement
Rnj Adjusting the Timing of the Upper Feed Vertical Movement
I1J Adjusting Presser Foot
Lid Adjusting Thread Trimmer
Lid Adjusting Tension Release
Idl Adjusting Thread Tension
Lll1 Adjusting Synchronizer {082-8774)
1121 Adjusting Thread Wiper
1131 Adjusting Potentio-Meter (87740)
Checking Feed Mechanism Weight (87740)
Ll51 Adjusting Sensor Position
Sensor (877 40)
Replacements
Li1 Replacing Solenoids
L1L Replacing Tension Release Wire
Replacing Bobbin Tension Spring
Replacing Photo-Cell and Reflector {87740)
Optional Equipment
Li1 Thread Wiper
L2L Presser Foot Lifting Solenoid Set
Troubleshooting Guide
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Table of Contents
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Names of Main Parts
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Specifications
4
Mechanical Descriptions
5
Feed Mechanism
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Summary of Contents for Brother DB2-B773-003
Page 1
From the library of: Superior Sewing Machine & Supply LLC...
Page 2: Table Of Contents
From the library of: Superior Sewing Machine & Supply LLC...
Page 3
From the library of: Superior Sewing Machine & Supply LLC...
Page 4: Names Of Main Parts
From the library of: Superior Sewing Machine & Supply LLC...
Page 5
From the library of: Superior Sewing Machine & Supply LLC...
Page 6: Specifications
From the library of: Superior Sewing Machine & Supply LLC...
Page 7
From the library of: Superior Sewing Machine & Supply LLC...
Page 8: Mechanical Descriptions
From the library of: Superior Sewing Machine & Supply LLC...
Page 9
From the library of: Superior Sewing Machine & Supply LLC...
Page 10: Feed Mechanism
From the library of: Superior Sewing Machine & Supply LLC...
Page 11: Feed Adjusting Mechanism And Quick Reverse Mechanism
From the library of: Superior Sewing Machine & Supply LLC...
Page 12: [§]Upper Feed Mechanism And Shirring Mechanism (Subclass -006)
From the library of: Superior Sewing Machine & Supply LLC...
Page 13
From the library of: Superior Sewing Machine & Supply LLC...
Page 14
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Page 15
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Page 16: Lid Tension Release
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Page 17: Automatic Presser Bar Lifter Mechanism (Subclass -900)
From the library of: Superior Sewing Machine & Supply LLC...
Page 18
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Page 19
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Page 20: Disassembly
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Page 21
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Page 22: Rotary Hook Mechanism F.slthreadtrimmer
From the library of: Superior Sewing Machine & Supply LLC...
Page 23: [§] Feed Mechanism
From the library of: Superior Sewing Machine & Supply LLC...
Page 24: Needle Bar Mechanism
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Page 25: Assembly
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Page 26
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Page 27
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Page 28
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Page 29
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Page 30: Rotary Hook Mechanism
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Page 31: Presser Foot Mechanism
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Page 32
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Page 33: Machine Covers
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Page 34: Adjustment
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Page 35: [L] Adjusting The Timing Between Needle And Feed
From the library of: Superior Sewing Machine & Supply LLC...
Page 36
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Page 37: 1!1 Zeroing Feed Regulator And Adjusting Reverse Lever
From the library of: Superior Sewing Machine & Supply LLC...
Page 38: Adjusting The Timing Of Upper Feed Horizontal Movement
From the library of: Superior Sewing Machine & Supply LLC...
Page 39: Rnj Adjusting The Timing Of The Upper Feed Vertical Movement
From the library of: Superior Sewing Machine & Supply LLC...
Page 40: I1J Adjusting Presser Foot
From the library of: Superior Sewing Machine & Supply LLC...
Page 41: Lid Adjusting Thread Trimmer
From the library of: Superior Sewing Machine & Supply LLC...
Page 42: Lid Adjusting Tension Release
From the library of: Superior Sewing Machine & Supply LLC...
Page 43: Idl Adjusting Thread Tension
From the library of: Superior Sewing Machine & Supply LLC...
Page 44: Lll1 Adjusting Synchronizer {082-8774)
From the library of: Superior Sewing Machine & Supply LLC...
Page 45: 1121 Adjusting Thread Wiper
From the library of: Superior Sewing Machine & Supply LLC...
Page 46: 1131 Adjusting Potentio-Meter (87740)
From the library of: Superior Sewing Machine & Supply LLC...
Page 47: Checking Feed Mechanism Weight (87740)
From the library of: Superior Sewing Machine & Supply LLC...
Page 48: Ll51 Adjusting Sensor Position
From the library of: Superior Sewing Machine & Supply LLC...
Page 49: Sensor (877 40)
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Page 50: Replacements
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Page 51
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Page 52
From the library of: Superior Sewing Machine & Supply LLC...
Page 53: L1L Replacing Tension Release Wire
From the library of: Superior Sewing Machine & Supply LLC...
Page 54: Replacing Photo-Cell And Reflector {87740)
From the library of: Superior Sewing Machine & Supply LLC...
Page 55
From the library of: Superior Sewing Machine & Supply LLC...
Page 56
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Page 57: Optional Equipment
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Page 58: L2L Presser Foot Lifting Solenoid Set
From the library of: Superior Sewing Machine & Supply LLC...
Page 59
From the library of: Superior Sewing Machine & Supply LLC...
Page 60
From the library of: Superior Sewing Machine & Supply LLC...
Page 61
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Page 62: Troubleshooting Guide
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Page 63
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Page 64
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Page 65
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Page 66
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Page 67
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This manual is also suitable for:
Db2-b773-006
Db2-b7740
Db2-b774
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