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Janome 3160QOV User Manual

Janome 3160QOV
29 pages
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SERVICE MANUAL
MODEL: 3160QOV
First Edition: 08 March 2019
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Janome 3160QOV Specifications

General IconGeneral
BrandJanome
Model3160QOV
CategorySewing Machine
LanguageEnglish

Summary

Changing External Parts

Face cover

Procedure for removing and attaching the face cover of the sewing machine.

Free-arm cover

Steps to remove and attach the free-arm cover.

Front cover (1)

Instructions for removing and attaching the front cover, including screw locations.

Front cover (2)

Further steps for removing and attaching the front cover.

Rear cover

Detailed steps for removing and attaching the rear cover of the sewing machine.

Mechanical Adjustment

Presser bar height

Adjusting the distance between the presser foot and the needle plate to 6.0 mm.

Needle drop position

Setting the correct needle drop position for optimal sewing performance.

Adjustment of hook timing

Procedure for aligning the rotary hook with the needle for correct timing.

Adjustment of needle bar height

How to adjust the needle bar height relative to the hook timing.

Clearance between needle and tip of the rotary hook

Procedure for setting the needle to hook tip clearance to -0.1 to +0.05 mm.

Feed dog height

Adjusting the highest position of the feed dog to 0.80-0.90 mm.

Feed dog adjustment (Only for model 3160QDC)

Specific feed dog adjustment for model 3160QDC, ensuring parallelism.

Top tension

How to adjust the top thread tension to be between 65 and 80g.

Adjusting buttonhole lever position

Steps to adjust the buttonhole lever guide and sensor position.

Replacing Electronic Components

Circuit board-A Connection

Identifies various connectors and their corresponding components on Circuit board A.

Circuit board-A (1)

Procedure for removing and attaching Circuit board-A, including screw and connector details.

Circuit board-A(2) Setting the Circuit board A

Guide on selecting the correct setting for Circuit board A based on the sewing machine model.

Driving motor

Instructions for removing, attaching, and adjusting the belt tension of the driving motor.

Switching regulator unit

Steps for removing and attaching the switching regulator unit.

Self-diagnostic Test

Function of LCD, buzzer, and lamp

Checks the functionality of the LCD display, buzzer, and sewing lamp.

Button Test

Verifies the response of various buttons during the diagnostic test.

Buttonhole Sensor Test

Checks the operation of the buttonhole sensor and its related feedback.

Bobbin Winder Switch Test

Tests the functionality of the bobbin winder switch and its indicator.

Presser Foot Lifter Switch Test

Verifies the operation of the presser foot lifter switch.

Upper Shaft Positioning Sensor Test

Checks the upper shaft positioning sensor during needle bar movement.

Zigzag/Feed Motor Test

Tests the functionality of the zigzag and feed motors.

Foot Control Test

Verifies the operation of the foot control pedal.

Slide Volume Test

Checks the functionality of the slide volume control.

DC Motor Test

Tests the starting, stopping, and stability of the DC motor.

Solenoid Test

Checks the operation of the solenoid, specifically for thread tension disc opening.

Thread Cutter Motor & Button Test

Tests the thread cutter motor and button functionality.

Display Program Version

Procedure to display the version of the sewing machine's program.

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