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Janome MC6300P User Manual

Janome MC6300P
50 pages
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SERVICE MANUAL
MC6300P

Table of Contents

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Janome MC6300P Specifications

General IconGeneral
BrandJanome
ModelMC6300P
CategorySewing Machine
LanguageEnglish

Summary

FACE PLATE AND TOP COVER REMOVAL

Face plate removal and attachment

Instructions for removing and attaching the face plate.

Top cover removal and attachment

Instructions for removing and attaching the top cover.

BELT COVER AND MACHINE BASE REMOVAL

Belt cover removal and attachment

Steps to remove and attach the belt cover.

Machine base removal and attachment

Steps to remove and attach the machine base.

AUTO THREAD CUTTER COVER REMOVAL

FRONT COVER REMOVAL

COVER REMOVAL

THREAD GUIDE REMOVAL

CIRCUIT BOARD A AND FUSE REPLACEMENT

CIRCUIT BOARD A FUSE REPLACEMENT

Procedure for replacing the fuse on circuit board A.

CIRCUIT BOARD K REPLACEMENT

CIRCUIT BOARD F AND SPEED CONTROL LEVER REPLACEMENT

CIRCUIT BOARD F REPLACEMENT

Steps to remove circuit board F from the machine.

SPEED CONTROL LEVER REPLACEMENT

Steps to remove the speed control lever.

CONNECTOR WIRING DIAGRAM

NEEDLE DROP POSITION ADJUSTMENT

HOOK TIMING ADJUSTMENT

NEEDLE BAR HEIGHT ADJUSTMENT

NEEDLE-ROTARY HOOK CLEARANCE ADJUSTMENT

NEEDLE-HOOK CLEARANCE ADJUSTMENT METHOD 1

First method to adjust clearance between needle and rotary hook.

NEEDLE-HOOK CLEARANCE ADJUSTMENT METHOD 2

Second method to adjust clearance between needle and rotary hook.

GEAR BACKLASH ADJUSTMENT

PRESSER BAR DIRECTION AND HEIGHT ADJUSTMENT

FEED DOG HEIGHT ADJUSTMENT

FEED DOG PARALLEL ALIGNMENT

Adjusting the feed dog to be parallel with the needle plate.

NEEDLE THREAD TENSION UNIT REPLACEMENT

TENSION RELEASE MECHANISM ADJUSTMENT (1)

TENSION RELEASE MECHANISM ADJUSTMENT (2)

UPPER THREAD TENSION ADJUSTMENT

BOBBIN WINDER ADJUSTMENT

NEEDLE THREADER PLATE REPLACEMENT

THREADER PLATE POSITION ADJUSTMENT

Adjusting the position of the threader plate if misaligned.

THREAD CUTTER UNIT REPLACEMENT (NEW TYPE)

AUTO THREAD CUTTER REPLACEMENT (OLD TYPE)

AUTO THREAD CUTTER CHECK

Procedure to check the auto-thread cutter after installation.

SLIDING PLATE POSITION ADJUSTMENT

THREAD SUPPLY CONTROL LEVER ADJUSTMENT

THREAD TAKE UP LEVER SETTING POSITION

UPPER SHAFT DECLUTCH DEVICE ADJUSTMENT

UPPER SHAFT DECLUTCH DEVICE CORRECT POSITION

Setting the correct angular position of the upper shaft declutch device.

DECLUTCH PIECE PLAY REDUCTION

Reducing play in the declutch piece for smooth operation.

LOWER SHAFT PARTS SETTING POSITIONS

UPPER AND LOWER SHAFTS SETTING POSITIONS

DRIVING MOTOR REPLACEMENT

MOTOR BELT TENSION CHECK

Procedure for checking and adjusting motor belt tension.

ZIGZAG TIMING ADJUSTMENT

BUTTONHOLE LEVER POSITION ADJUSTMENT

STRETCH STITCH FEED BALANCE ADJUSTMENT

PRESSER BAR LIFTER SWITCH POSITION ADJUSTMENT

AUTO THREAD CUTTER SWITCH POSITION ADJUSTMENT

UPPER SHAFT DECLUTCH DEVICE SOLENOID ADJUSTMENT

AUTO THREAD CUTTER SOLENOID ADJUSTMENT

BOBBIN IDLING SOLENOID ADJUSTMENT

MACHINE DIAGNOSIS CHART

DIAGNOSIS DEVICE ACTIVATION

Steps to activate the diagnosis device and start checking.

DIAGNOSIS: NUMBER, LED, LAMP & BUZZER CHECK

Checking buzzer, LED signals, and sewing light for correct function.

DIAGNOSIS: FUNCTION BUTTON TESTING

Testing function buttons on the front cover for correct LED output.

DIAGNOSIS: SWITCH TESTING

Testing various switches like bobbin winder, presser bar lifter, etc.

DIAGNOSIS: PHOTO SENSOR TESTING

Testing photo sensors for buttonhole, auto thread cutter, feed, and zigzag.

DIAGNOSIS: VELOCITY SENSOR CHECK

Checking the velocity sensor reading for correct operation.

DIAGNOSIS: SPEED CONTROL SLIDER TEST

Testing the speed control slider and its LED display.

DIAGNOSIS: FOOT CONTROL TEST

Testing the foot control pedal and its LED display.

DIAGNOSIS: SOLENOID TESTING

Testing solenoids for auto thread cutter, bobbin idling, and upper shaft declutch.

DIAGNOSIS: STEPPING MOTOR CHECK

Checking stepping motors for needle bar, tension, and feed dog.

DIAGNOSIS: DRIVING MOTOR TEST

Testing the driving and bobbin winding motors.

FINDING OPERATING SYSTEM VERSION

TROUBLESHOOTING: FEED DOG STUCK

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