Related Manuals for Brother 888X Series
Summarization of Contents
General Information
Important Safety Instructions
Lists essential safety guidelines for performing adjustments and repairs safely and surely.
Outline of Mechanism
Main Mechanisms Overview
Details the primary mechanical components of the sewing machine.
Driveline Explanation
Explains the system of components that transmit power and motion within the machine.
Electronic Components Location
Illustrates the locations of key electronic parts within the sewing machine.
Control System Block Diagram
Presents a schematic of the sewing machine's electrical and control system.
Basic of Disassembly and Assembling
Preparation for Disassembly
Outlines initial steps and accessory removal before disassembly.
Main Frame and Covers Disassembly
Details the disassembly and reassembly of the sewing machine's main structure and outer casings.
Main Motor Unit Removal
Explains the removal and installation procedures for the main motor assembly.
Bobbin Winding & Needle Threading Mechanism
Covers the disassembly and assembly of the bobbin winding and needle threading components.
Pattern Selecting Mechanism Disassembly
Details the procedures for disassembling and assembling the pattern selection system.
Upper Shaft and Needle-Presser Module
Explains the removal and installation of the upper shaft and needle-presser mechanisms.
Feed Unit Disassembly
Covers the disassembly and assembly of the feed mechanism.
Adjustment Procedures
Needle Point and Timing Adjustments
Covers inspection of needle point and adjustment of timing belts and motor belts.
Hook and Feed Mechanism Adjustments
Procedures for adjusting inner rotary hook position, presser foot/needle plate alignment, and feed dog settings.
Needle Bar and Presser Bar Adjustments
Covers adjustments for needle swing timing, needle bar rising/height, needle clearance, and presser bar height.
Stitch and Tension Adjustments
Details adjustments for upper and lower thread tension, and buttonhole stitch length.
Other Component Adjustments
Covers adjustments for the needle threader and bobbin winder.
Troubleshooting Electronic Parts
Sewing Lamp Issues
Troubleshooting guide for when the sewing lamp fails to illuminate.
Main Motor Problems
Troubleshooting steps for a non-operational or slow-speed main motor.
Special Instructions of Wiring
Motor 3P Supply Assembly Wiring
Detailed instructions for attaching and wiring the motor 3P supply assembly.
LED Lead Wire Wiring
Procedure for properly wiring the LED lead wire within the machine.
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