CONTENTS
WHAT TO DO WHEN ............................................................................................
1-3
SERVICE ACCESS
FACE COVER ......................................................................................
4
TOP COVER.........................................................................................
4
BASE PLATE ........................................................................................
5
BED COVER.........................................................................................
5
BELT COVER .......................................................................................
6
FREE ARM COVER .............................................................................
6
FRONT COVER....................................................................................
7
REAR PANEL .......................................................................................
8
MECHANICAL ADJUSTMENT
TOP TENSION .....................................................................................
9
PRESSER BAR HEIGHT AND ALIGNMENT .......................................
10
NEEDLE SWING ..................................................................................
11
STRAIGHT STITCHING .......................................................................
12
DISTRIBUTION OF NEEDLE SWING ..................................................
13
STRETCH STITCH BALANCE ............................................................. 14, 15
FEED DOG HEIGHT ............................................................................
16
CLEARANCE BETWEEN NEEDLE AND HOOK .................................
17
NEEDLE TO HOOK TIMING ................................................................
18
NEEDLE BAR HEIGHT ........................................................................
19
BACKLASH (LOWER SHAFT GEAR) ..................................................
20
BUTTONHOLE STITCH BALANCE .....................................................
21
NEEDLE POSITION .............................................................................
22
ZERO FEEDING ...................................................................................
23
REPLACEMENT AND ADJUSTMENT OF THE NEEDLE
THREADER PLATE..............................................................................
24
BUTTONHOLE FUNCTION (1) ............................................................
25
BUTTONHOLE FUNCTION (2) ............................................................
26
MOTOR BELT TENSION .....................................................................
27
REPLACING TRANSFOMER................................................................................
28
WIRING OF TERMINAL BLOCK ..........................................................................
29
OILING
..............................................................................................................
30
PARTS LIST .......................................................................................................... 31~53
Summary of Contents for HD718
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