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SEWING MACHINE DIV. 20 MODEL 385.19001890
CONDITION
6. NOISY
OPERATION
7. PAI"[ERN
DISTORTION
8. UPPER
THREAD
LOOPING
CAUSE HOW TO FIX REFERENCE
1. E 31
,
3,
BACKLASH BE[WEEN
SHUI_LE HOOK GEAR AND
LOWER SHAFTGEAR IS
TOO GREAT.
LOWER SHAFTGEAR IS
LOOSE.
INAPPROPRIATE BELT
TENSION
4. NOT ENOUGH OIL
1. INAPPROPRIATE FEED
BALANCE
.
,
.
5.
.
.
8.
.
.
INAPPROPRIATE ZIGZAG
SYNCHRONIZATION
UPPERTHREAD TENSION IS
TOO STRONG.
EMBROIDERY FOOT ISNOT
BEING USED.
STABILIZERISNOT BEING
USED WITH STRETCHOR
FINE FABRICS.
THE FABRIC ISNOT SET
PROPERLYON THE
EMBROIDERY HOOP.
EXTENSION TABLEISNOT
SETCORRECTLY.
EMBROIDERY FOOT
CATCHES THE
CONNECTING THREAD.
FABRIC ISTOO SMALL FOR
EMBROIDERY HOOP.
UPPERTHREAD TENSION IS
TOO LOOSE.
SEEMECHANICAL
ADJUSTMENT '" BACKLASH
(LOWER SHAFTGEAR)".
ELIMINATE THE LOOSENESS.
SEEPART REMOVAL AND
REPLACEMENT "DC MOTOR
UNIT AND BELTTENSION'".
OIL ALL MOVING PARTS.
SEEMECHANICAL
ADJUSTMENT " STRETCH
STITCHFEED BALANCE ".
SEEMECHANICAL
ADJUSTMENT " UPPERSHAFT
SHIELD PLATEPOSITION'".
SEEMECHANICAL
ADJUSTMENT "NEEDLE
THREAD TENSION",
USEEMBROIDERY FOOT.
USESTABILIZER.
PLACE THE FABRIC TIGHTLY
IN THE EMBROIDERY HOOP
(NO LOOSE FABRIC).
SETTHEEXTENSION TABLE
CORRECTLY.
CUT THECONNECTING
THREAD WHEN CHANGING
THE COLOR OF THREAD.
USEA PIECE OF FABRIC
LARGER THAN HOOP.
SEEMECHANICAL
ADJUSTMENT "NEEDLETHREAE
TENSION."
P.57
P.7O
P.37
[CONVENTIONA
SEWINGONLY)
R 34
(CONVENTIONA
BEING ONLY)
R 39
(EMBROIDERY
ONlY)
R18
(EMBROIDERY
ONLY)
R18
(EMBROIDERY
ONLY)
(EMBROIDERY
ON{Y)
R18
(EMBROIDERY
ONLY)
P,39
10
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