JUKI DSC-245 User Manual

viii
CONTENTS
SPECIFICATIONS ........................................................................................................................ 1
1.SETTING UP THE SEWING MACHINE
................................................................................... 2
2.INSTALLING THE THREAD STAND
........................................................................................ 2
3.INSTALLING THE BELT COVER AND THE BOBBIN WINDER
............................................. 3
4.LUBRICATION
.......................................................................................................................... 3
5.ATTACHING THE NEEDLE
...................................................................................................... 4
6.WINDING A BOBBIN
................................................................................................................ 4
7.THREADING THE BOBBIN CASE
........................................................................................... 5
8.INSTALLING THE TAKE-UP THREAD GUIDE ROD
............................................................... 5
9.THREAD THE MACHINE HEAD
.............................................................................................. 6
10.ADJUSTING THE STITCH LENGTH
...................................................................................... 6
11.FORWARD/REVERSE SEAM RATIO
..................................................................................... 6
12.THREAD TENSION
................................................................................................................. 7
13.THREAD TAKE-UP SPRING
.................................................................................................. 7
14.PRESSURES OF THE PRESSER FOOT AND WALKING FOOT
......................................... 7
15.HEIGHT OF THE FEED DOG (DSC-245,-4,-7)
...................................................................... 8
16.ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT
........................................ 9
17.NEEDLE-TO-HOOKRELATIONSHIP
................................................................................... 10
18.AUXILIARY THREAD TENSION CONTROLLER (DSC-245-4,-7, DSC-245V-4,-7)
............ 10
19.ADJUSTING THE PRESSURE OF THE FIXED KNIFE (DSC-245-4,-7, DSC-245V-4,-7)
... 11
20.ONE-T
OUCH TYPE REVERSE FEED STITCHING MECHANISM
(DSC-245-4,-7, DSC-245V-4,-7) ............................................................................................ 11
21.ADJUSTING THE THREAD TRIMMING CAM
..................................................................... 12
22.ADJUSTING THE CAM ROLLER ARM AND THE CAM ROLLER
ARM PRESSER
(DSC-245-4,-7, DSC-245V-4,-7) ............................................................................................ 12
23.ADJUSTING MAX MOVING STROKE OF THE ROTARY
KNIFE
(DSC-245-4,-7, DSC-245V-4,-7) ............................................................................................ 12
24.ADJUSTING THE OPERATING STROKE OF THE PICKER
(DSC-245-4,-7, DSC-245V-4,-7) ............................................................................................ 13
25.HOW TO REPLACE THE KNIVES (DSC-245-4,-7, DSC-245V-4,-7)
................................... 13
26.HOW TO CHANGE FROM ELLIPTICAL FEED TO HORIZONTAL FEED
.......................... 14
27.HOW TO CHANGE FROM HORIZONTAL FEED TO ELLIPTICAL FEED
.......................... 16
28.MOTOR PULLEY AND SEWING SPEED (DSC-245, DSC-245V)
....................................... 18
29.TROUBLES AND CORRECTIVE MEASURES
.................................................................... 19
– 13 –
24.ADJUSTING THE OPERATING STROKE OF THE PICKER (DSC-245-4,-7, DSC-245V-4,-7)
25.HOW TO REPLACE THE KNIVES (DSC-245-4,-7, DSC-245V-4,-7)
1
.
Turning the handwheel, align the red marker dot in
the machine arm with the white marker dot in the
handwheel.
2
.
Loosen setscrew
❶
in the picker driving plate and
push picker driving plate
❷
by hand.
3.

Adjust the position of the picker driving plate so that
picker
❸
operates 2 mm longer from the end face of
hook cover
❹
.
4
.
After adjustment,tighten the setscrew.
○ When the clearance between the picker driving bar
❺
and the picker driving plate is large,the operating
stroke decreases,and when it is small,the operating
stroke increases.
1
.
Remove the throat plate and the feed dog.
2.

Rotary knife
❶
can be removed by removing con-
necting screw
❸
in driving plate
❷
, and xed knife
❹
can be done by removing setscrew
❺
of the xed
knife.
3.

After replacement,adjust the knife pressure.

(Method for adjusting the knife pressure,see
「
19.
ADJUSTUING THE PRESSURE OF THE FIXED
KNIFE
」）
(Caution)
Attach the counter knife so that it is in parallel to
the throat plate base.
すき間
Clearance
(When operating)
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Parallel

JUKI DSC-245 Specifications

General

Brand	JUKI
Model	DSC-245
Category	Sewing Machine
Language	English