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Manuals
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Brother Manuals
Sewing Machine
STAR-240E
Service manual
Brother STAR240E Service Manual
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Also See for STAR240E
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Instruction manual
(111 pages)
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Contents
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Table of Contents
Mechanical Chart
Power Transmission Chart
ELECTRONIC PARTS ARRANGEMENT CHART (STAR240E, STAR230E Only)
CONTROL SYSTEM BLOCK DIAGRAM (STAR240E, STAR230E Only)
MOTOR UNIT CONTROL (STAR240E, STAR230E Only)
OTHER ELECTRONIC COMPONENT FUNCTIONS (STAR240E, STAR230E Only)
Table of Contents
Selecting Unit Section Adjustments
Upper Shaft and Lower Shaft Timing
Driving Belt and Timing Belt Tension
Needle down Position Adjustment
Needle Flow
Left Straight Line Sewing Needle Descent and the Zigzag Maximum Left Needle Descent Alignment
Timing of Needle and Rotary Hook Assembly (Clearance between the Needle and the Rotary Hook Point)
Needle Bar Height
Inner Rotary Hook Retainer Plate L Position
Inner Rotary Hook Rotation Prevention Bracket Position
Feed Dog Front-Rear and Left-Right Position
Feed Dog Height
Presser Bar Height
Thread Tension Dial Tension
Selection Dial Outer Edge Play
Pattern Display Selection Positioning
Z Finger Positioning
Feed Bracket Installation Position
Super Pattern (Triple Sewing)
Feed Adjustment
Bh Left Needle Descent and Zigzag Maximum Left Needle Descent Alignment
Button Hole Stitch Left Reverse Stitch and Right Forward Stitch Length
Button Hole Stitch Bar Tack Feed Adjustment
Button Hole Stitch Button Hole Length
Thread Winding Adjustment
Forward and Reverse Stitch Length (Straight Line Stitch Length)
Inner Rotary Hook Tension
NEEDLE STOP POSITIONING (NP) (STAR240E, STAR230E Only)
BACKSTITCH (BK) SWITCH ADJUSTMENT (STAR240E, STAR230E Only)
BOBBIN WINDER SWITCH ADJUSTMENT (BOBBIN WINDING) (STAR240E, STAR230E Only)
Needle Threader (Star240E, Star230E, Ps57, Ps55)
Needle Threader (Star240E, Star230E, Ps57, Ps55) (Checking the Hook Position in the Horizontal Direction)
Needle Threader (Exchange) (Star240E, Star230E, Ps57, Ps55)
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Fabric Does Not Feed
Fabric Does Not Feed Straight
Lower Thread Breaks
Machine Skips Stitches
Upper Thread Breaks at Start
Upper Thread Breaks During Reverse Sewing
Upper Thread Breaks During Sewing
Fabric Gathers
Forward and Reverse Feedings Differ
Improper Buttonhole Size against Button Size
Improper Length of Buttonhole Legs
Needle Breaks
Needle Hits Needle Plate When Pattern Selector Dial Is Turned
Noise
Unbalanced Patterns
17.Light Is off
Motor Does Not Run
The Stitch Shown in the Pattern Indication Window Is Different from the One Being Sewn
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Connector
Main PC Board
SS-VR Board
HOW to ADJUST ELECTRON ELEMENTS 1. When Power Is Turned On, the Lamp Does Not Light up
Main Motor Does Not Operate
Operation of Main Motor Is Not Stable or Maximum Speed Operation Is Not Possible
Low Speed
Needle Does Not Stop in the up Position
Speed Cannot be Adjusted
Supposed to Become Slow Speed.)
The Motor Starts, then Stops Immediately
During Thread Winding, the Motor Starts, but Stops Immediately
Pressed
When the Sewing Machine Starts, the Warning Buzzer Buzzes and It Stops Immediately
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Mechanical Chart
3
Thread Tension Dial Tension
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This manual is also suitable for:
Star230e
Ps-57
Ps-55
Ps-53
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