LH-3528A-7_LH-3528A_用户操作使用说明书手册.pdfVIP

ENGLISH

LH-3500ASeries

INSTRUCTIONMANUAL

CONTENTS

1.SPECIFICATIONS1

2.NAMEOFEACHCOMPONENT3

3.INSTALLATION4

3-1.Cautionatthetimeofset-up4

3-2.Installationofthesewingmachine5

3-3.Adjustingtheheightofthekneelifter6

3-4.Installationofthreadstand6

4.PREPARATIONOFTHESEWINGMACHINE7

4-1.Methodoflubrication7

4-2.Lubricationtotheoiltank8

4-3.Drainingofoilfromtheoiltank9

4-4.Adjustingtheamountofoilinthehook9

4-5.Oilinthefeedbox10

4-6.Applyinggrease11

4-7.SettinguptheSC-92014

4-8.Installingthebeltcover(ForLH-3528A,3568A,3578Aand3588A)18

4-9.Attachingtheneedles18

4-10.Howtotakeoutthebobbincase19

4-11.Insertingabobbininabobbincase19

4-12.Threadingthemachinehead20

4-13.Threadtension23

4-14.Windingthebobbinthread24

4-15.Threadtake-upspring25

4-16.Adjustingthestitchlength27

4-17.Needle-to-hookrelation27

4-18.Pedalpressureandpedalstroke29

4-19.Adjustmentofthepedal29

5.OPERATIONOFTHESEWINGMACHINE30

5-1.PedalOperation30

5-2.Handlifter30

5-3.Adjustingthepressureofthepresserfoot31

5-4.Micro-lifter31

5-5.Threadtensionreleasechangeoverwhenusingthekneelifter32

5-6.One-touchmanualreversefeed(One-touchreversefeedtype)32

6.MAINTENANCE33

6-1.Procedureofchangingoverbetweenbottomfeedandneedlefeedandtheadjustment(forLH-3528A

only)33

6-2.Changingthefeedtimi