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SERVICE MANUAL
SEWING MACHINE MODEL
385. 16231400
OCTOBER,
2003
CONTENTS
LOCATE AND IDENTIFY THE PARTS .................................................................
1
WHAT TO DO WHEN ............................................................................................
2-4
THREADING OF MACHINE ..................................................................................
5
SERVICE ACCESS
FACE COVER ......................................................................................
TOP COVER .........................................................................................
BASE PLATE........................................................................................
BED COVER .........................................................................................
BELT COVER .......................................................................................
FREE ARM COVER .............................................................................
FRONT COVER ....................................................................................
6
6
7
7
8
8
9
REAR PANEL .......................................................................................
10
MECHANICAL ADJUSTMENT
TOP TENSION .....................................................................................
11
PRESSER BAR HEIGHT AND ALIGNMENT .......................................
12
NEEDLE SWING ..................................................................................
13
STRAIGHT STITCHING ....................................................................... 14, 15
DISTRIBUTION OF NEEDLE SWING .................................................. 16, 17
STRETCH STITCH BALANCE............................................................. 18, 19
FEED DOG HEIGHT ............................................................................ 20, 21
NEEDLE BAR HEIGHT ........................................................................ 22, 23
NEEDLE TO SHUTTLE TIMING .......................................................... 24, 25
NEEDLE CLEARANCETO SHUTFLE .................................................
26
BACKLASH(LOWER SHAFT GEAR) ..................................................
27
BUTTONHOLE STITCH BALANCE ..................................................... 28, 29
NEEDLE POSITION ............................................................................. 30, 31
ZERO FEEDING ................................................................................... 32, 33
BASIC NEEDLE POSITION .................................................................
34
BUTTONHOLE
FUNCTION (1) ............................................................
35
BUTTONHOLE
FUNCTION (2) ............................................................
36
BUTTONHOLE FUNCTION (3) ............................................................
NEEDLE THREADER PLATE ..............................................................
NEEDLE STOP POSITION ..................................................................
37
38
39
PRINT BOARD AND FUSE ..................................................................
PRINT BOARD AND CONNECTOR LOCATION .................................
40
41
TRANSFORMER
42
..................................................................................
MOTOR BELT TENSION
OILING
.....................................................................
..............................................................................................................
SPECIAL TOOLS REQUIRED ..............................................................................
VI.0
43
44
45
SEWING MACHINE DIV.20
MODEL 385. 16231300
LOCATE AND IDENTIFY THE PARTS
Upper ThreadGuMe
Thre_adSpool Pin
ThreadTake-upLever_
Thread
Face CoverPlata
Thread Cu#er
Need_
Threader
Needle Plate
_
Reverse Con_o/ Button
Hook Cover Plate
B_d/Mop
Hook Cover Plate Release
Exlension
Bu#on
Bu#on
TaMe (Accesso_
Box)
Car_4ng Handle
Bu_onho_e Lever
Bu#onho/e
Pitch Balance
Adjusting
Lever
Presser Foot Lifter
HandwheeJ
Stitchl
Feed Balancing
DropFeed Lever
Nomenclature Plate
Machine Socket
Snap_n
/
presser Foot
Button
SEWING MACHINE DIV.20
MODEL 385. 16231300
WHAT TO DO WHEN
CONDITION
1. SKIPPING
STITCHES
CAUSE
HOW TO FIX
1. NEEDLE IS NOT INSERTED
REFERENCE
INSERT THE NEEDLE PROPERLY.
PROPERLY.
2. NEEDLE IS BENT OR WORN.
CHANGE THENEEDLE.
3. INCORRECTLY THREADED
RETHREAD.
4. NEEDLE OR THREAD ARE
USETHERECOMMENDED
INAPPROPRIATE FOR
SEWING NEEDLE AND THREAD.
FABRIC BEING SEWN.
5, SEWING ON STRETCH
USE A #11 BLUE TIP NEEDLE.
FABRIC
6. PRESSER FOOT PRESSURE
IS TOO WEAK.
ADJUST THE PRESSER BAR
LEVEL TO MAKE THE
PRESSURE STRONGER.
7. INAPPROPRIATE NEEDLE
SEE MECHANICAL
BAR HEIGHT
P.22, 23
ADJUSTMENT
"NEEDLE BAR HEIGHT".
8. INAPPROPRIATE NEEDLE
SEE MECHANICAL
TO SHU'I-I'LE TIMING
P.24, 25
ADJUSTMENT
"NEEDLE TO SHUTTLE TIMING".
9. INAPPROPRIATE NEEDLE
SEE MECHANICAL
TO SHUTTLE CLEARANCE
P.26
ADJUSTMENT=NEEDLE
CLEARANCE TO SHUTTLE."
2. FABRIC NOT
MOVING
1. PRESSER FOOT PRESSURE
ADJUST THE PRESSER BAR
IS TOO WEAK.
LEVEL TO MAKE THE
PRESSURE STRONGER.
2. INCORRECT F.D. HEIGHT
SEE MECHANICAL
ADJUSTMENT "FEED DOG
HEIGHT."
3. F.D. IS IN DOWN POSITION
RAISE THE F.D. LEVEL.
4. THREAD ON BOTTOM SIDE
MAKE SURE TO BRING
OF FABRIC IS JAMMED UP.
BOTH NEEDLE AND BOBBIN
THREAD UNDER THE FOOT
WHEN STARTING SEWING,
5. FEED DOG TEETH ARE
CHANGE THE FEED DOG.
WORN.
2
P.20, 21
SEWING MACHINE DIV.20
CONDITION
3. BREAKING
UPPER
THREAD
MODEL 385. 16231300
HOW TO FIX
CAUSE
REFERENCE
STARTWITH MEDIUMSPEED.
1, INITIAL SEWING SPEED IS
TOO FAST.
2. THREAD
PATH IS
USE THE PROPER THREAD
INCORRECT.
PATH.
3. NEEDLE IS BENT OR DULL.
REPLACE WITH A NEW NEEDLE.
4, UPPER THREAD TENSION IS ADJUST UPPER THREAD
TOO STRONG.
TENSION CORRECTLY.
5. NEEDLE SIZE IS
USE APPROPRIATE NEEDLE
INAPPROPRIATE FOR
FOR FABRIC AND THREAD
FABRIC.
IN USE.
6. NEEDLE EYE IS WORN,
CHANGE THE NEEDLE.
7. NEEDLE HOLE IN NEEDLE
REPAIR THE HOLE OR
PLATE IS WORN OR BURRED. REPLACE THE NEEDLE PLATE.
BOBBIN
1. INCORRECTLYTHREADED THREAD BOBBIN CORRECTLY.
BOBBIN.
THREAD
2. TOO MUCH THREAD IS
4. BREAKING
ADJUST THE POSITION OF
ON THE BOBBIN.
STOPPER.
3. LINT IS STUCK INSIDE THE
CLEAN THE SHUTTLE.
BOBBIN HOLDER.
4. THREAD QUALITY IS
CHANGE TO A HIGHER QUALITY
TOO LOW.
SEWING THREAD.
5. THREAD IS JAMMING
CLEAR OUT THE JAMMING
AROUND THE BOBBIN.
5. NEEDLE
BREAKS
THREAD.
1. NEEDLE IS HITTING THE
SEE MECHANICAL
NEEDLE PLATE.
P.30,31
ADJUSTMENT"NEEDLE
POSITION."
2. NEEDLE IS BENT OR WORN.
3. NEEDLE IS HITTING THE
CHANGE THE NEEDLE.
SEE MECHANICAL
SHUFFLE.
P.26
ADJUSTMENT=NEEDLE
CLEARANCE TO SHUTTLE."
4. THE FABRIC MOVES WHILE
SEE MECHANICAL
THE NEEDLE IS PIERCING
ADJUSTMENT "NEEDLE
IT, OR THE NEEDLEZIGZAGS
SWING."
WHILE IN FABRIC.
5. FABRICIS BEINGPULLEDTOO GUIDE THE FABRIC GENTLY
STRONGLY WHILE SEWING.
3
WHILE SEWING.
P.13
SEWING MACHINE DIV.20
CONDITION
6. NOISY
OPERATION
MODEL 385. 16231300
CAUSE
HOW TO FIX
1. BACKLASHBETWEEN
SEE MECHANICAL
REFERENCE
P.27
SHUTTLEHOOKGEARAND ADJUSTMENT "BACKLASH
LOWERSHAFTGEARISTOO (LOWER SHAFT GEAR)."
GREAT.
2. LOWERSHAFT GEARIS
ELIMINATE THE LOOSENESS.
LOOSE.
&INAPPROPRIATE BELT
SEE MECHANICAL
TENSION.
ADJUSTMENT
P.43
"MOTOR
BELT TENSION."
7. DEFORMATION
PA'r'FERN
4. NOT ENOUGH OIL
OIL ALL MOVING PARTS.
5. UPPER SHAFT IS LOOSE.
ELIMINATE THE LOOSENESS.
1. INAPPROPRIATE FEED
SEE MECHANICAL
BALANCE.
P.18, 19
ADJUSTMENT "STRETCH
STITCH BALANCE."
2. INAPPROPRIATE ZIGZAG
SEE MECHANICAL
SYNCHRONIZATION.
P.13
ADJUSTMENT"NEEDLE
SWING."
3. UPPER THREAD TENSION
SEE MECHANICAL
IS TOO STRONG.
&IMPROPER
BU'I-rONHOLE
ADJUSTMENT "TOP TENSION."
1. BUTTONHOLESTITCH
SEE MECHANICAL
P.28, 29
BALANCEISNOTCORRECT. ADJUSTMENT"BUTTONHOLE
RESULTS
STITCH BALANCE."
2. IMPROPER SIZE ON AUTO
SEE MECHANICAL
BU'FrONHOLE
P.35
ADJUSTMENT=BUTrONHOLE
FUNCTION(I)."
3. CHANGING TO BAR TACK
SEE MECHANICAL
IS TOO EARLY OR WILL NOT
ADJUSTMENT"BUTTONHOLE
WORK.
FUNCTION(2)."
SEE MECHANICAL
4. THE MACHINE STOPS
TOO EARLY OR TOO
ADJUSTMENT "BUTTONHOLE
LATE, OR DOES NOT
FUNCTION (3)."
STOP.
4
P.36
P.37
SEWING MACHINE DIV.20
MODEL 385. 16231300
THREADING OF MACHINE
THE NUMBERED STEPS BELOW FOLLOW THE NUMBERS ON THE ILLUSTRATIONS.
DOTTED LINES SHOW THE PLACES WHERE THE THREAD LOOPS AND IS THEN
PULLED TIGHT.
RAISE
THE TAKE-UP
HANDWHEEL
LEVER
TO ITS HIGHEST
POSITION
BY TURNING
THE
TOWARD YOU.
RAISE THE PRESSER
FOOT LEVER.
PLACE THE SPOOL ON A PIN WITH THE THREAD COMING
FROM THE BACK OF THE
SPOOL.
1.
DRAW THE THREAD THROUGH THE THREAD GUIDE.
2.
HOLDING THE THREAD TAUT WITH YOUR RIGHT HAND, DRAW THE THREAD DOWN
INTO THE TENSION AREA AND THEN AROUND THE CHECK SPRING HOLDER.
3.
FIRMLY DRAW THE THREAD UP AND THROUGH THE TAKE-UP LEVER FROM RIGHT
TO LEFT.
4.
PULL THE THREAD TO THE LEFT, AND SLIP IT INTO THE NEEDLE BAR THREAD
GUIDE.
5.
THREAD THE NEEDLE FROM FRONT TO BACK.
NOTE: YOU MAY WANT TO CUT THE END OF THE THREAD WITH SHARP SCISSORS
FOR EASIER NEEDLE THREADING.
5
SEWING MACHINE DIV.20
MODEL 385. 16231400
SERVICE ACCESS
FACE COVER
1.
OPEN THE FACE COVER (A).
2.
REMOVETHE
3.
TAKE THE FACE COVER (A) OFF.
SETSCREWS
(B).
TOP COVER
1.
OPEN THE FACE COVER (A).
2.
REMOVE SETSCREWS
3.
TAKE THE TOP COVER (D) OFF.
(B) AND (C).
6
SEWING MACHINE DIV.20
MODEL 385. 16231300
SERVICE ACCESS
BASE PLATE
1.
REMOVE THE FOUR SETSCREWS (A).
2.
REMOVE THE BASE PLATE (B).
BED COVER
1.
REMOVE THE TWO SETSCREWS
2.
REMOVE THE BED COVER (E).
(D).
* WHEN YOU REPLACE THE BED COVER, SET THE DROP LEVER (F) IN THE LEFT
POSITION.
7
SEWING MACHINE DIV.20
MODEL 385. 16231400
SERVICE ACCESS
BELT COVER
BELT COVER
PULL OUT THE STITCH SELECTOR. LOOSEN SETSCREW (A) AND REMOVE
SETSCREW (B). PULL THE RIGHT SIDE OF BELT COVER tN THE DIRECTION OF THE
ARROW, AS ILLUSTRATED AND TAKE THE LATCH OFF, AND THEN REMOVE THE
BELT COVER.
WHEN YOU REA'I-FACH THE BELT COVER, SET THE PROJECTION INTO THE GROOVE
ON THE FRONT COVER.
FREE ARM COVER
NEEDLE
PLATE
FREEARM
1.
REMOVE SETSCREW
2.
REMOVE THE BED COVER (SEE PAGE 7).
3.
REMOVE SCREW (B) AND THE FREE ARM COVER.
COVER
(A) AND THE NEEDLE PLATE.
8
SEWING MACHINE DIV.20
MODEL 385. 16231300
SERVICE ACCESS
FRONT COVER
(c)
%
(oJ .-."
_- "
(B)
,,
<_
(H)
(o)
1.
OPEN THE FACE COVER.
2.
REMOVE THE TOP COVER (SEE P.6), AND THE BELT COVER (SEE P.8).
3.
REMOVE SETSCREWS
(A) AND (B).
4.
LOOSEN SETSCREWS
(C) AND (D), THEN REMOVE THE FRONT COVER (E).
5.
UNHOOK THE FRONT COVER FROM THE LATCH (F) OF THE REAR COVER.
6.
TAKE OFF THE LEFT BoTroM
7.
DISCONNECT
NOTE:
END OF THE FRONT COVER (G).
THE CONNECTORS
TO DISCONNECT
FOR PRINT BOARD F AND SLIDE VOLUME (H).
THE CONNECTORS,
REMOVE THE CIRCUIT BOARD COVER
(REFER TO PAGE 39).
TO REPLACE, FOLLOW THIS PROCEDURE
9
IN REVERSE.
SEWING
MACHINE DIV.20
MODEL 385. 16231400
SERVICE ACCESS
REAR PANEL
(D) O,-° i-
(E)
PRESSER FC_ T LEVER
TWIST AND REMOVE THE ARM CO VER
PART FROM
LEVER
THE PRESSER
FOOT
\
REAR PANEL UNIT
""a=
1.
OPEN THE FACE COVER.
2.
REMOVE THE TOP COVER UNIT (SEE P.6), THE BELT COVER (SEE P.8) AND THE
FRONT COVER (SEE P.9).
3.
4.
REMOVE SETSCREWS (A) ,(B), AND (C), AND LOOSEN SETSCREWS (D,E AND F).
LOWER THE PRESSER FOOT LEVER, AND PULL AWAY THE REAR PANEL UNIT FROM
THE MACHINE FRAME. TWIST AND REMOVE
PRESSER FOOT LEVER.
WHEN YOU REA'I'I"ACH THE REAR PANEL,
THE ARM COVER
PART FROM THE
PUT THE "WINDOW"
ON THE PLASTIC
PANEL OVER THE PRESSER FOOT LEVER, AND THEN REPLACE THE SIX SCREWS.
10
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
TOP TENSION
TO CHECK:
1.
2.
SET THE TENSION DIAL AT "4", AND RAISE THE PRESSER FOOT.
PASS THE THREAD
(A) BETWEEN
THE DISCS, AND DRAW THE THREAD
(A) DOWN
AROUND THE CHECK SPRING HOLDER AS IN FIG. 1.
3.
LOWER THE PRESSER FOOT, AND BRING THE THREAD (A) UP.
4.
THE TOP TENSION SHOULD BE BETWEEN 75 AND 90g WHEN PULLING THE THREAD
(A) UP IN THE DIRECTION OF (B).
* USE POLYESTER
SEWING THREAD #50 (WHITE).
* IF IT IS NOT WITHIN THE ABOVE LIMITS, ADJUST AS FOLLOWS.
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE FRONT COVER UNIT (SEE P.9).
2.
PULL THE SPRING (C) AWAY FROM THE LEAD SCREW (D).
3.
IF THE TOP TENSION IS TOO LOOSE, TURN THE LEAD SCREW (D) IN THE DIRECTION
OF (E).
IF THE TOP TENSION IS TOO TIGHT, TURN THE LEAD SCREW (D) IN THE DIRECTION
OF (F).
DETACH
THREAD
SETA
TENS/ON
DIAL
PULL THIS WAY
T "4"
(o)
(B)
t
_j(A)
.!
11
SEWING
MACHINE
DIV.20
MODEL
385.16231400
MECHANICAL
ADJUSTMENT
PRESSER BAR HEIGHT AND ALIGNMENT
TO CHECK:
1.
RAISE THE PRESSER FOOT LEVER (B).
2.
THE DISTANCE BETWEEN THE ZIGZAG FOOT (A) AND THE NEEDLE PLATE (C)
SHOULD BE 6.0 MM (0.24").
* IF THIS IS NOT THE CASE, ADJUST AS FOLLOWS.
ADJUSTMENT
1.
2.
PROCEDURE:
OPEN THE FACE COVER.
RAISE THE PRESSER
FOOT LEVER (B), AND LOOSEN
THE HEXAGONAL
SOCKET
SCREW (D) ON THE PRESSER BAR HOLDER (E),
3,
ADJUST THE DISTANCE
BETWEEN THE ZIGZAG FOOT (A) AND THE NEEDLE PLATE
(C) TO 6.0 aM (0.24").
4.
TIGHTEN THE SETSCREW
NOTE:
(D) SECURELY.
WHEN YOU TIGHTEN THE SETSCREW
(D), MAKE SURE THAT BOTH SIDES OF
THE ZIGZAG FOOT (A) ARE PARALLEL WITH THE FEED DOG SLITS.
C_
CB.)
,(
L
(F) FEEDDOGSL/TS
(,4)
"\
iq
i
__
I
6MM
(c)
12
iJ
ii
ii
.._HOLI/_D
BE PARALLEL
i
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
NEEDLE SWING
TO CHECK:
IF THE NEEDLE BAR MOVES SIDEWAYS
ZIGZAG STITCHING,
(THE NEEDLE
WHILE THE NEEDLE IS IN THE FABRIC IN
ADJUST IT AS FOLLOWS:
SHOULD
START
SWINGING
2 (0.08") TO 3MM (0.12") ABOVE
THE
NEEDLE PLATE.)
ADJUSTMENT
1.
PROCEDURE:
REMOVE THE TOP COVER (SEE P.6), SET THE PATTERN SELECTOR
AND SELECT THE MAXIMUM ZIGZAG WIDTH.
DIAL AT" _
2.
LOOSEN THE TWO HEXAGONAL SOCKET SCREWS ON THE UPPER SHAFT WORM.
3.
WHILE
HOLDING
THE UPPER
SHAFT
WORM
IN PLACE, CAREFULLY
",
TURN THE
HANDWHEEL AND ADJUST IT SO THAT THE LATERAL NEEDLE SWING STARTS FROM
A POSITION
OUTFLOW.
2MM (0.08")
TO 3MM (0.12") ABOVE
THE NEEDLE
PLATE IN RIGHT
4.
TIGHTEN THE TWO HEXAGONAL SOCKET SCREWS ON THE UPPER SHAFT WORM.
5.
ATTACH THE TOP COVER (UNIT).
NOTE:
FOR REMOVAL AND REPLACEMENT
OF THE TOP COVER (UNIT), REFER TO
PAGE 2. AFTER THE TIMING ADJUSTMENT
OF THE LATERAL NEEDLE SWING,
MAKE SURE THAT THERE IS NO BACKLASH BETWEEN THE UPPER SHAFT
WORM
AND
THE
OTHER
GEAR,
AND
THAT
A SMOOTH
ROTATION
OBTAINED.
UPPER SHAFT
THE BACKLASH
THE BACKLASH
1S DECREASED
IS INCREASED.
WORM
(NOTE)
MAKE
NOT
SURE
MOVE
TURNING
THE UPPER
OTHERWISE,
BETWEEN
GEAR
THE WORM
SIDEWAYS
THE
DOES
WHEN
SHAFT
BACKLASH
THE WORM AND
THE
GEAR WILL CHANGE
_
2-3MM
A
(RIGHT
POSITION)
13
OUTFLOW
START
IS
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL ADJUSTMENT
STRAIGHT STITCHING
TO
1. CHECK:
SET THE STITCH WIDTH CONTROL AT" 0 ", AND THE STITCH SELECTOR AT
2. TURN THE HANDWHEEL BY HAND.
3.
THE NEEDLE SHOULD NOT SWING SIDE TO THE SIDE AT THIS SE'I-FING.
_SELECTEDPATI'ERN
STITCH WIDTH CONTROL
t4
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
STRAIGHT STITCHING
ADJUSTMENT PROCEDURE:
1.
REMOVE THE TOP COVER (SEE P.6).
2.
LOOSEN SETSCREW
3.
MOVE THE ZIGZAG WIDTH ROD (B) UNTIL THE NEEDLE CEASES
MOVEMENT WHEN YOU TURN THE HANDWHEEL TOWARD YOU.
4.
RETIGHTEN
(A).
SETSCREW
(A) SECURELY.
15
ITS ZIGZAG
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
DISTRIBUTION OF NEEDLE SWING
TO
1. CHECK:
SET THE STITCH WIDTH CONTROL TO" 0 "AND THE STITCH SELECTOR AT
.
2.
RAISE THE NEEDLE TO ITS HIGHEST POSITION.
3.
DROP THE FEED DOGS.
4.
PLACE A PIECE OF PAPER ON THE NEEDLE PLATE, AND LOWER THE PRESSER
FOOT.
5.
LOWER THE NEEDLE TO MARK THE NEEDLE POINT (A) ON A PIECE OF PAPER BY
TURNING THE HANDWHEEL.
6.
RAISE THE NEEDLE TO ITS HIGHEST POSITION.
7.
TURN THE STITCH WIDTH CONTROL TO 6.5.
8.
LOWER THE NEEDLE TO MARK THE NEEDLE POINTS (B AND C) ON THE PIECE OF
PAPER, BY TURNING THE HANDWHEEL.
9.
THE DISTANCE
BETWEEN A-B AND A-C SHOULD BE EQUAL.
E
_SELECTEDPATTERN
STITCH WIDTH CONTROL
BAC
16
SEWING
MACHINE
DIV.20
MODEL 385. 16231300
MECHANICAL
DISTRIBUTION
ADJUSTMENT
OF NEEDLE SWING
ADJUSTMENT
PROCEDURE:
1.
OPEN THE FACE COVER, AND LOOSEN HEXAGONAL SOCKET SCREW (D).
2.
MOVE
THE
NEEDLE
BAR SUPPORTER
(E) IN EITHER
DIRECTION
DISTANCES A TO B, AND A TO C, BECOME EQUAL.
3.
TIGHTEN HEXAGONAL SOCKET SCREW (D) SECURELY.
(D)
B
A
C
17
UNTIL THE
SEWING MACHINE DIV.20
MODEL 386. 16231400
MECHANICAL
ADJUSTMENT
STRETCH STITCH BALANCE
TO CHECK:
1.
SET THE STITCH SELECTOR AT--
-- --, THE STITCH LENGTH CONTROL AT STRETCH
STITCH, AND THE STRETCH STITCH ADJUSTER AT _91.
2.
PLACE A PIECE OF PAPER ON THE NEEDLE
FOOT.
3
TURN THE HANDWHEEL
4.
THE NEEDLE SHOULD PENETRATE THE SAME HOLE IN A FORWARD AND REVERSE
TO MARK NEEDLE POINTS ON THE PAPER.
DIRECTION WHILE TURNING THE HANDWHEEL
III
III
III
SELECTED PATTERN
STRETCH
V
PLATE AND LOWER THE PRESSER
LENGTH
0 _=1
2
3
4
STITCH LENGTH CONTROL
18
TOWARDS YOU.
SEWING
MACHINE
DIV.20
MODEL 385. 16231300
MECHANICAL ADJUSTMENT
STRETCH STITCH BALANCE
ADJUSTMENT PROCEDURE:
1.
REMOVE THE CAP (F).
2.
IF THE REVERSE STITCH LENGTH (B) IS SHORTER THAN THE FORWARD STITCH
LENGTH (A), TURN THE ADJUSTING SET SCREW (E) IN THE DIRECTION OF (C).
IF THE REVERSE
STITCH
LENGTH
LENGTH (A), TURN THE ADJUSTING
0
X
x
A=B
A>B
A<B
(B) IS LONGER
THAN THE FORWARD
SET SCREW (E) IN THE DIRECTION
\
(FJ
19
STITCH
OF (D).
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
FEED DOG HEIGHT
TO CHECK:
1.
SET THE STITCH LENGTH CONTROL AT "4", AND RAISETHE NEEDLE TO ITS HIGHEST
POSITION.
2.
RAISE THE PRESSER FOOT, AND PLACE THE FEED DOG HEIGHT GAUGE (#68496)
ON THE NEEDLE PLATE.
3.
TURN THE HANDWHEEL, AND CHECK THE FEED DOG HEIGHT.
4.
THE FEED DOG HEIGHT SHOULD BE IN ACCORDANCE WITH CHART 1.
CHART 1
GAUGE
FACE (A)
FACE (B)
0.95MM
0.75MM
NOT MOVING
MOVING
CORRECT
NOT MOVING
NOT MOVING
LOW
MOVING
MOVING
HIGH
STRETCH
•
FEED DOG HEIGHT
LENGTH
0_1
_
2m 3m 4
/
STITCH LENGTH CONTROL
2O
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
FEED DOG HEIGHT
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE BED COVER.
2.
LOOSEN THE NUT ( A ) AND THE SETSCREW
3.
TURN THE ADJUSTING SCREW ( C ) IN THE DIRECTION OF ( D ) WHEN THE FEED DOG
HEIGHT IS LOW, OR IN THE DIRECTION
HIGH.
4.
TIGHTEN THE NUT (A)
( B ).
OF (E) WHEN THE FEED DOG HEIGHT IS
AND THE SETSCREW
( B ) SECURELY.
(E)
(c)
21
SEWING
MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
NEEDLE BAR HEIGHT
MACHINE SETrlNG:
II
1. SET THE STITCH SELECTOR AT c_, AND THE ZIG ZAG WIDTH AT "6.5."
PREPARATION:
1.
REMOVE THE NEEDLE, PRESSER FOOT, NEEDLE PLATE (A) AND BOBBIN HOLDER
(B).
2.
INSERT THE RADIAL TIMING GAUGE #68497 (C) ONTO THE HOOK.
3.
ATFACH THE NEEDLE BAR HEIGHT GAUGE #68168 (D).
* PUSH IT UP UNTIL IT STOPS.
4.
TIGHTEN THE NEEDLE CLAMP SCREW (E).
TO CHECK:
1,
TURN THE HANDWHEEL
LOWEST POSITION,
TOWARD
YOU UNTIL THE NEEDLE BAR (F) REACHES ITS
* IF THE FINGER (G) COMES DOWN ON TOP OF THE PIN (H), OR IF THE PIN (I)
TOUCHES THE SURFACE OF THE GAUGE (K) TOO FORCEFULLY, ADJUST IT IN
ACCORDANCE
2.
THE INSTRUCTIONS
ON THE NEXT PAGE.
THE FACE OF THE FINGER (G) SHOULD HIT THE SIDE OF PIN (H), AND THE END OF
PIN (I) SHOULD TOUCH THE SURFACE OF THE GAUGE (K) WHEN THE NEEDLE BAR
(F) REACHES ITS LOWEST POSITION.
÷
(G)
(O)_
(I)_
_
,,_
(H)
(C)
22
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL ADJUSTMENT
NEEDLE BAR HEIGHT
ADJUSTMENT PROCEDURE:
1.
OPEN THE FACE COVER.
2.
3.
LOOSEN THE HEXAGONALSOCKET SCREW ( M ) ON THE NEEDLE BAR HOLDER ( L ).
MOVE THE NEEDLE BAR ( F ) UP OR DOWN, TO ADJUST THE POSITION OF THE
NEEDLE BAR (F) SO THAT THE FACE OF FINGER (G) HITS THE SIDE OF PIN ( H ), AND
4.
THE END OF PIN ( I ) TOUCHES THE SURFACE OF THE GAUGE (K).
TIGHTEN THE HEXAGONALSOCKET SCREW ( M ) SECURELY.
/c)
23
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
NEEDLE TO SHUTTLE TIMING
I
I
I.
SET THE STITCH SELECTOR
AT c_, AND THE ZIG ZAG WIDTH AT "6.5."
PREPARATION:
1.
REMOVE THE NEEDLE, PRESSER FOOT, NEEDLE PLATE (A)
AND BOBBIN HOLDER
(B).
2.
INSERT THE RADIAL TIMING GAUGE #68497 ( C ) SO THAT THE SMALL FINGER ON
THE GAUGE FITS INTO THE SLOT NEAR THE TIP OF THE HOOK.
3.
PUT THE TEST PIN #68368 ( D ) IN TO THE NEEDLE HOLDER ( E ).
* PUSH UP IT UNTIL IT STOPS.
4.
TIGHTEN THE NEEDLE CLAMP SCREW ( F ).
TO CHECK:
1.
TURN THE HANDWHEEL
TOWARD YOU UNTIL THE TIP OF TEST PIN #68368
2.
THE TIP OF TEST PIN #68368 ( D ) SHOULD BE BETWEEN THE TWO WHITE LINES OF
( D ) SLIGHTLY TOUCHES THE RADIAL TIMING GAUGE #68497 ( C ).
THE RADIAL TIMING GAUGE #68497 ( C ).
* IF THE TEST PIN DOES NOT FALL BETWEEN
THE TWO WHITE
RADIAL TIMING GAUGE, ADJUST AS FOLLOWS.
(D)
I(A)
(8)
6
jR
A
24
LINES ON THE
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
NEEDLE TO SHU'I-I'LE TIMING
ADJUSTMENT
PROCEDURE:
1. REMOVE THE BED COVER (SEE P.7).
2. TURN THE HANDWHEEL
TOWARD
YOU UNTIL THE NEEDLE
BAR REACHES THE
LOWEST POSITION.
3.
LOOSEN HEXAGONAL SOCKET SCREWS (G) AND (H).
4.
HOLD THE HANDWHEEL,
AND TURN THE LOWER SHAFT GEAR (I) UNTIL THE TEST
PIN #68368 (D) COMES IN BETWEEN THE TWO WHITE LINES OF THE RADIAL TIMING
GAUGE #68497 (C).
5. TIGHTEN HEXAGONAL
SOCKET SCREWS (G) AND (H).
G)
25
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
NEEDLE CLEARANCE TO SHUTTLE
TO CHECK:
1.
SET THE STITCH SELECTOR AT _ .
2.
2.
REPLACE THE NEEDLE WITH THE TEST PIN #68368 (A).
TURN THE HANDWHEEL SLOWLY BY HAND UNTIL THE NEEDLE BAR REACHES ITS
LOWEST POSITION,
3.
THE CLEARANCE BETWEEN THE TEST PIN (A) AND THE SHARP END (B) OF THE
SHUTTLE HOOK SHOULD BE BETWEEN +0.05 (0.002") AND - 0.10 MM (-0,004").
ADJUSTMENT
1.
PROCEDURE:
REMOVE THE BED COVER (SEE P.7).
2.
LOOSEN SETSCREWS
(C), (D) AND (E).
3.
TIGHTEN SETSCREW
(C) TEMPORARILY.
4.
MOVE THE PLATE (F) IN EITHER DIRECTION, AS SHOWN BY THE ARROW UNTIL THE
CLEARANCE BETWEEN THE TEST PIN (A) AND THE SHARP END (B) OF THE SHUTTLE
HOOK BECOMES BETWEEN +0.05 AND-0.10 MM.
5.
TIGHTEN THE SETSCREWS
(C), (D) AND (E) SECURELY.
\\
• g.05- • g,)MM
/
26
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
BACKLASH ( LOWER SHAFT GEAR )
TO CHECK:
1.
REMOVE THE NEEDLE PLATE AND BOBBIN HOLDER.
2.
TURN THE HANDWHEEL
SLOWLY TOWARD
YOU UNTIL THE TIP OF THE SHUFFLE
HOOK (A) IS BETWEEN BOTH ENDS (B) OF THE FEED DOG.
3.
ROTATE THE HOOK RACE CLOCK3NISE AND COUNTER CLOCKWISE
BY HAND, AND
CHECK THE PLAY. IT SHOULD BE WITHIN 0.8 MM (0,03").
* IF THERE IS MORE THAN A 0.8 MM (0.03") BACKLASH
ADJUST AS FOLLOWS.
ADJUSTMENT
1.
BETWEEN
THE GEARS,
PROCEDURE:
REMOVE THE BED COVER (SEE P.7), AND LOOSEN HEXAGONAL
SOCKET SCREW
(c).
2.
TURN THE LOWER SHAFT BUSHING (ECCENTRIC BUSHING)
WHEN THE PLAY AT THE SHU1-FLE HOOK TIP IS TOO SMALL.
(D) IN DIRECTION
3.
TURN THE LOWER SHAFT BUSHING (ECCENTRIC BUSHING) (D) IN DIRECTION
WHEN THE PLAY AT THE SHUFFLE HOOK TIP IS TOO LARGE.
4.
TIGHTEN HEXAGONAL SOCKET SCREW ( C ) SECURELY AFTER
(E)
(F )
ADJUSTMENT.
(4)
°
THE PLA Y
LOWER SHAFT
GEAR
GRO0 VE OF L O WER SHAFT
(F)
(E)
27
B USH/AIG
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
BUTTONHOLE STITCH BALANCE
TO CHECK:
1,
SET THE MACHINE AS FOLLOWS:
STITCH SELECTOR
IRI
................ U
STITCH LENGTH CONTROL .. BLUE ZONE
STITCH WIDTH CONTROL .,... 6.5
2.
A'I-I'ACH THE AUTOMATIC
3.
SEW A BUTFONHOLE,
BUTTONHOLE
FOOT.
AND CHECK THE STITCH BALANCE BETWEEN THE RIGHT AND
LEFT SIDES OF THE BUTTONHOLE.
4.
THE CORRECT
BUTTONHOLE
STITCH
BALANCE
IS WHEN THERE
COARSE ON THE RIGHT AND LEFT SIDES OF THE BUTTONHOLE.
| _
0--1 --2--3_4_5_6
WIDTH
5
STITCH WIDTH CONTROL
STRETCH
(
V
LENGTH
0_1_2--3--4
®
]
STITCH LENGTH CONTROL
H
SELECTED PATTERN
28
IS THE SAME
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL ADJUSTMENT
BUTFONHOLE
STITCH BALANCE
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE BED COVER. (SEE P.7)
2.
LOOSEN HEXAGONAL SOCKET SCREW (A).
3.
IF THE RIGHT SIDE OF THE BUTFONHOLE IS TOO SPARSE, TURN THE RING (B) IN THE
DIRECTION OF (C).
IF THE LEFT SIDE OF THE BUTTONHOLE
DIRECTION
4.
IS TOO SPARSE, TURN THE RING (B) IN THE
OF (D).
TIGHTEN HEXAGONAL
SOCKET SCREW (A) SECURELY.
RING (B)
\
(O)
HEXAGONAL SOCKET
SCREW (,4)
INCORRECT
×
CORRECT
0
29
INCORRECT
×
SEWING MACHINE DIV,20
MODEL 385, 16231400
MECHANICAL
ADJUSTMENT
NEEDLE POSITION
TO CHECK:
1.
SET THE MACHINE AS FOLLOWS:
STITCH SELECTOR ...........
STITCH WIDTH CONTROL 6.5
2.
TURN THE HANDWHEELTOWARD YOU UNTIL THE NEEDLE COMES TO THE CENTER
POSITION.
3.
THE NEEDLE SHOULD NOT MOVE WHEN YOU TURN THE STITCH WIDTH CONTROL
TO"0".
0--1
C
SELECTED PATrERN
F_
--2
3_4_5_6.5
WIDTH
STITCH WIDTH CONTROL
3O
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
NEEDLE POSITION
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE TOP COVER. (SEE P.6)
2.
TURN THE HANDWHEEL
TOWARD YOU UNTIL THE NEEDLE COMES TO THE CENTER
OF THE SLIT IN THE NEEDLE PLATE.
3.
LOOSEN SETSCREWS
(A) AND (B).
4.
TIGHTEN SETSCREW
(A) SLIGHTLY.
5.
MOVE THE PLATE (C) IN EITHER DIRECTION, AS SHOWN BY THE ARROW, UNTIL THE
NEEDLE CEASES TO MOVE. (EVEN IF THE DIAL IS MOVED FROM MAXIMUM ZIGZAG
WIDTH TO ZERO.)
(A)
(B)
(C)
31
SEWING MACHINE DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
ZERO FEEDING
TO CHECK:
1.
ii
SET THE STITCH SELECTOR TO _
2.
PLACE A PIECE OF PAPER ON THE NEEDLE PLATE.
3.
CHECK IF THE PAPER MOVES
HANDWHEEL
4.
, AND THE STITCH LENGTH CONTROL TO "0."
FORWARD
OR BACKWARD
WHEN YOU TURN THE
TOWARD YOU.
THE MACHINE SHOULD NOT FEED A PIECE OF PAPER AT THIS SE"I-FING.
I
STRETCH
I
V
SELECTED PATTERN
LENGTH
0_1_-2--3--4
STITCH LENGTH CONTROL
32
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
ZERO FEEDING
ADJUSTMENT
PROCEDURE:
1.
2.
3.
REMOVE THE BELT COVER (SEE P.8).
SET THE STITCH SELECTOR AT _,
AND THE STITCH LENGTH CONTROL AT" 0 ".
PLACE A PIECE OF PAPER ON THE NEEDLE PLATE.
4.
IF THE PAPER MOVES FORWARD, TURN THE ADJUSTING SCREW (C) IN DIRECTION
(A).
IF THE PAPER MOVES BACKWARD,
(B).
TURN THE ADJUSTING
FORWARD
\
BACKWARD
33
SCREW (C) IN DIRECTION
SEWING MACHINE DIV.20
MODEL 385, 16231400
MECHANICAL
ADJUSTMENT
BASIC NEEDLE POSITION
* IF THE LEFT NEEDLE POSITION IN MAXIMUM ZIGZAG AND IN STRAIGHT
SEWING
ARE NOT THE SAME, ADJUST AS FOLLOWS:
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE BELT COVER (SEE P.8).
2.
SELECT THE LEFT NEEDLE POSITION IN MAXIMUM ZIG ZAG, THEN SELECT THE LEFT
NEEDLE POSITION IN STRAIGHT
3.
SEWING.
IF THE RESULT LOOKS LIKE (A) SEE BELOW, TURN THE ADJUSTING
SCREW
IN
SCREW
IN
DIRECTION (D).
IF THE RESULT LOOKS LIKE (B) SEE BELOW, TURN THE ADJUSTING
DIRECTION (C).
4.
REPLACE THE BELT COVER (SEE P.8).
ADJL/S 7-1NGSCRE'I4L__
(c)
%
i
NEEDLE POSITION IN
MAXIMUM ZIGZAG
i
i
i
i!
!i
NEEDLE POSITION IN
STRAIGHT SEWING
i
;
(.4)
INCORRECT
34
(B)
INCORRECT
SEWING
MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
BUTTONHOLE FUNCTION (1)
* A BUTTONHOLE THAT HAS BEEN SEWN WITH THE AUTOMATIC BUTTONHOLE
FOOT WILL BE 3MM (0.12") LONGER THAN THE ACTUAL BU'I-rON, THIS LENGTH
CAN BE ADJUSTED AS FOLLOWS:
ADJUSTMENT
PROCEDURE:
1.
LOWER THE FEED DOG AND ATTACH THE BH FOOT R, THEN LOWER THE PRESSER
BAR.
2.
LOOSEN SETSCREW
3.
PULL DOWN THE BH LEVER UNTIL IT TOUCHES FOOT R, AND THE BAR (B) HITS THE
FRONT
(A).
BASE PLATE. ALSO, MAKE SURE THE BH LEVER ADJUSTING
TOUCHES THE FINGER (D). TIGHTEN SETSCREW
4.
RAISE THE FEED DOG, AND SEW A BUTTONHOLE.
SHORT
FRONT
STANDARD
PLATE (C)
(A).
THEN, CHECK THE LENGTH.
LONG
BASE PLA TE
H/TTING
FRONT
BASE PLATE
BH LEVER ADJUS _
I
TO UOHING
BH FOOT R
35
SEWING MACHINE
DIV.20
MODEL 385. 16231400
MECHANICAL ADJUSTMENT
BUTTONHOLE FUNCTION (2)
* IF THE BAR TACK ON THE Bu'vrONHOLE OCCURS TOO EARLY, OR IF NO BAR TACK
IS SEWN AT ALL, ADJUST AS FOLLOWS.
ADJUSTMENT PROCEDURE:
1.
2.
REMOVE THE BELT COVER (SEE P.8).
(A) IF THE BARTACK IS SEWN TOO EARLY, TURN THE HEXAGONALSOCKET SCREW
(E) IN DIRECTION (C).
(B) IF THE BAR TACK IS SEWN TOO LATE, TURN THE HEXAGONALSOCKET SCREW
(E) IN DIRECTION (D).
3.
ATrACH THE BELTCOVER (SEE P.8).
BAR TACK IS SEWN
BAR TACK IS SEWN
TOO EARLY
TOO LATE
36
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
BUTTONHOLE
FUNCTION
ADJUSTMENT
(3)
THE MACHINE WILL STOP AUTOMATICALLY
WHEN BUTTONHOLE
IS COMPLETED.
IF THE
MACHINE STOPS TOO EARLY OR TOO LATE, CORRECT IT AS FOLLOWS:
ADJUSTMENT
PROCEDURE:
1.
OPEN THE FACE COVER.
2.
LOOSEN THE SETSCREW
3.
IF THE MACHINE STOPS TOO EARLY: MOVETHEADJUSTINGPLATE(B)
(A).
INTHE
DIRECTION OF (C).
4.
IF THE MACHINE STOPS TOO LATE OR DOES NOT STOP: MOVETHEADJUSTINGPLATE
(B) IN THE DIRECTION OF (D).
5.
6.
TIGHTEN THEADJUSTING
SCREW (A).
ATrACH THE FACE COVER.
NOTE: IF THE MACHINE WILL NOT STOP WHEN PUSHING THE BH LEVER IN THE DIRECTION
OF THE ARROW, ADJUST THE POSITIONNN
OF THE MICRO SWITCH AS FOLLOWS.
1.
SEW UP TO STEP 4 AND STOP THE MACHINE. REMOVE THE BELT COVER.
2.
LOOSENTHESETSCREW(E).ADJUSTTHEGAPTO1
3.
HOLDER (F) SO THE MICRO SWITCH (G) IS ON. TIGHTEN THE SET SCREW (E).
SEW A TEST BUTTONHOLE TO CHECK IF THE MACHINE STOPS AUTOMATICALLY.
4.
ATTACH THE BELT COVER.
O
3
2
_
MMBYSHIFTING
THESWlTCH
X
MICRO
SWITCH
SHOULD
4 BEON ATTHISPOSITION"
__/MACHINE
SEWSA FEW _
--
MACHINESTOPSTOO
AUTOMATICALLY.
(G)
/
(A)
BH LEVER
/
37
SEWING MACHINE
DIV.20
MODEL 385. 16231400
MECHANICAL
ADJUSTMENT
NEEDLE THREADER
TO REPLACE:
PRY OUT THE THREADER PLATE HOLDER (A) WITH A SCREWDRIVER WHILE PUSHING AND
HOLDING THE THREADER KNOB DOWN.
ALIGN THE GROOVE ON THE NEW THREADER PLATE HOLDER (A) WITH THE PIN (B) ON THE
THREADER SHAFT. PUSH THE THREADER
PLATE HOLDER (C) UP UNTIL IT SNAPS IN PLACE.
ADJUSTMENTPROCEDURE:
1. IF THE THREADER
HOOK THRUSTS
OR HITS AGAINST EITHER LEFT OR RIGHT EDGE OF
THE NEEDLE EYE: LOOSEN THE SETSCREW
(C) AND ADJUST THE POSITION OF THE
THREADER PLATE (H) (SEE FIG. 2),
2. IF THE THREADER HOOK THRUSTS AGAINST EITHER TOP OR BOTFOM EDGE OF THE
NEEDLE EYE, OR MISSES THE NEEDLE EYE: OPEN THE FACE COVERAND LOOSEN THE
SETSCREW (D). MOVE THE THREADER POSITION SETTING HOLDER (E) UP OR DOWN TO
ADJUST THE HOOK POSITION.
VIEW X_J
\_
Co)
38
SEWING MACHINE
DIV.20
MODEL 385, 16231300
MECHANICAL
ADJUSTMENT
THE HEIGHT OF THE NEEDLE POINT SHOULD BE 10-14 MM ABOVE THE NEEDLE PLATEWHEN
THE MACHINE STOPS. IF NOT, CORRECT ITAS FOLLOWS:
ADJUSTMENT
PROCEDURE:
1. REMOVE THE TOP COVER (SEE PAGE 6.)
2. TURN THE POWER SWITCH ON AND PRESS THE START/STOP BUTFON TWICE TO STOP
THE MACHINE WITH THE NEEDLE BAR AT THE UP POSITION.
3. IF THE NEEDLE POINT IS HIGHER THAN 14 MM:
THE UPPER SHAFT SHIELDING
PLATE (D) IN THE DIRECTION
4. IF THE NEEDLE POINT IS LOWER THAN 10 MM:
THE UPPER SHAFT SHIELDING
5. TIGHTEN THE SETSCREW.
6. PRESS THE START/STOP
LOOSEN THE SETSCREW
OF (A).
LOOSEN THE SETSCREW
PLATE (D) IN THE DIRECTION
(C) AND TURN
(C) AND TURN
OF (B).
BUTFON TWICE AND CHECK THE NEEDLE STOP POSITION.
ATTACH THE TOP COVER.
NOTE: CHECK IF THE NEEDLE STOPS AT THE HEIGHT THAT ALLOWS THE NEEDLE
THREADER
TO WORK CORRECTLYAND
THE NEEDLE THREAD TO SLIP INTO THE
TAKE-UP LEVER.
UPPERSHAFTSENSOR
\
x
A
B
10-14 MM
..........................
39
T
SEWING
MACHINE
DIV.20
MODEL
385.16231400
MECHANICAL
ADJUSTMENT
CIRCUIT BOARD B AND FUSE
TO REPLACE THE CIRCUIT BOARD B
1. REMOVE THE BASE PLATE (SEE PAGE 7.).
2. REMOVE THE 3 SETSCREWS
(A). REMOVE THE CIRCUIT BOX COVER (B).
3. REMOVE THE 4 SETSCREWS
(C) AND PULL OUT ALL THE CONNECTORS.
4. REPLACE THE CIRCUIT BOARD B (D) AND ATTACH IT WITH THE SETSCREWS
5. INSERT THE CONNECTORS (SEE PAGE 41 FOR CONNECTOR
6. ATTACH THE CIRCUIT BOX COVERAND BASE PLATE.
LOCATION.).
TO REPLACE THE FUSE:
1. PRY OUTTHE
FUSE (E) WITHASCREWDRIVER.
2. REPLACE THE FUSE (E) AND PUSH IT DOWN INTO THE FUSE CLIP (F).
(B)
/
(.4)
(F)
(c)
(c)
(c)
(o/
4O
(C).
SEWING MACHINE DIV.20
MODEL 385. 16231300
1. LAMP CONNECTOR
2. TRANSFORMER
8. BOBBIN WINDING SWITCH
CONNECTOR
CONNECTOR
9. CIRCUIT BOARD F CONNECTOR
(SECONDARY)
3. MACHINE SOCKET CONNECTOR
(SECONDARY)
4. SLIDEVOLUME
10. MOTOR CONNECTOR
11, TRANSFORMER
CONNECTOR
(PRIMARY)
12. MACHINE SOCKET CONNECTOR
5, UPPER SHAFT SENSOR CONNECTOR
6, BH SELECTING
CONNECTOR
SWITCH CONNECTOR
(PRIMARY)
7. BH LIMtTER SWITCH CONNECTOR
1
j3
12
/4
11-__
5
10--
I,I
///
9
41
I/I,I
,1_
/,r
8
7
\\
I
6
SEWING MACHINE DIV.20
REPLACEMENT
MODEL 385. 16231400
OF TRANSFORMER
TO REMOVE:
1. REMOVE THE CIRCUIT BOARD COVER (SEE PAGE 39).
2. DISCONNECT
THE TRANSFORMER
3. REMOVE THE 2 SETSCREWS
CONNECTORS
(A) FROM THE CIRCUIT BOARD B.
(B) AND REMOVE THE TRNSFORMER
* TO REPLACE, FOLLOW THIS PROCEDURE IN REVERSE.
(c)
(.4)
42
(C).
SEWING MACHINE DIV.20
MODEL 385. 16231300
MECHANICAL
ADJUSTMENT
MOTOR BELT TENSION
TO CHECK:
1.
IF THE MOTOR BELT TENSION
BELT TO MAKE NOISE.
IS TOO TIGHT OR TOO LOOSE,
IT MAY CAUSE THE
A TOO TIGHT BELT TENSION CAN CAUSE THE MACHINE TO RUN SLOWLY AND WILL
OVERLOAD
THE MOTOR; A TOO LOOSE MOTOR BELT TENSION,
MAY CAUSE THE
BELT TEETH TO JUMP OVER THE PULLEY.
2.
THE CORRECT
MOTOR BELT TENSION IS ACHIEVED WHEN THE BELT IS PUSHED IN
ABOUT 7MM (0.28") - 9MM (0.36") UNDER A PRESSURE OF ABOUT 300 GRAMS.
ADJUSTMENT
PROCEDURE:
1.
REMOVE THE BELT COVER (SEE P.8).
2.
LOOSEN SETSCREWS
3.
MOVE THE MOTOR UP OR DOWN TO ADJUST
(A) AND (B).
THE DEFLECTION
(0.28") - 9aM (0.36").
4.
TIGHTEN SETSCREWS
(A) AND (B).
(A)
-
300gLOAD
DEFLECTION 7-9 MM
(B)
43
TO ABOUT 7MM
SEWING MACHINE DIV.20
MODEL 385. 16231400
OILING
FACTORY
LUBRICATED
WITHOUT
ROUTINE
LUBRICATION
PARTS WILL PROVIDE
OILING,
YEARS
BUT YOU SHOULD
NEEDS WHENEVER
OF HOUSEHOLD
STILL
CHECK
SEWING
FOR POSSIBLE
SERVICING THE MACHINES.
OIL:
USE GOOD QUALITY SEWING MACHINE
INDICATED BY THE BLACK ARROWS.
OIL AT THE POINTS
(A, B, C, D, E, F & G)
GREASE:
USE WHITE GREASE SUCH AS MOLYCOTE
INDICATED BY THE WHITE ARROWS.
__
,_
,
I
J,
I
J
44
EM-40M AT THE POINTS
r ,
\\
(H, I, & J)
SEWING MACHINE
DIV.20
MODEL 385. 16231300
SPECIAL TOOLS REQUIRED
FEED
DOG HEIGHT
GAUGE
#68496
_WDRIVER
NEEDLE
HE/GHT
GAUGE #68 ! 68
PHILLIPS SCREW DRIVER
TESTPIN
#_8368
ALLEN SCREWDRIVER
RADIAL
RADIAL
#UI369G
ALLEN
WRENCH
45
TIMING
GAUGE
TIMING GAUGEX_BB497
SHEET