Janome 2049 User manual

SERVICE MANUAL
SEWING MACHINE MODELS
2049, 2041, 2018
(Illustrations in this manual represent Model 2049)

CONTENTS
LOCATE AND IDENTIFY THE PARTS................................................................. 1
WIND THE BOBBIN .............................................................................................. 2
PREPARE YOUR TOP THREAD .......................................................................... 3
STITCH SELECTOR / STITCH LENGTH / STITCH WIDTH CONTROLS............ 4
WHAT TO DO WHEN ............................................................................................ 5-7
SERVICE ACCESS
FACE COVER ...................................................................................... 8
FRONT COVER.................................................................................... 9
REAR COVER ...................................................................................... 10
MECHANICAL ADJUSTMENT
TOP TENSION ..................................................................................... 11
BOBBIN TENSION ............................................................................... 12
PRESSER BAR HEIGHT AND ALIGNMENT ....................................... 13
NEEDLE SWING .................................................................................. 14
NEEDLE DROP .................................................................................... 15
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1)...................... 16
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2)...................... 17
FEED DOG HEIGHT ................................................................................ 18
NEEDLE BAR HEIGHT ........................................................................ 19
NEEDLE TIMING TO SHUTTLE .......................................................... 20
DISTORTED PATTERN ....................................................................... 21
BUTTONHOLE FEED BALANCE......................................................... 22
BARTACK FEED OF BUTTONHOLE................................................... 23
BUTTONHOLE FUNCTION.................................................................. 24
DISENGAGEMENT OF CAM FOLLOWER .......................................... 25
MOTOR BELT TENSION ..................................................................... 26
WIRING .............................................................................................................. 27
OILING .............................................................................................................. 28
SPECIAL TOOLS REQUIRED .............................................................................. 29

1
LOCATE AND IDENTIFY THE PARTS
Bobbin Winding Tension Disc Thread Spool Pins
Bobbin Winding Spindle
Upper Thread Guide
Take–up Lever
Top Thread Tension Control
Face Cover Plate
Thread Cutter
Needle Plate
Stitch Width Dial (2049, 2041)
Stitch Length Dial (2049, 2041)
Stitch Selector
Reverse Stitch Control
Extension Table (Accessory storage box) Shuttle Cover
Needle Clamp Screw
Presser Foot
Carrying Handle
Handwheel
Light and Power Switch
Plug Connector
Nomenclature Plate
Free Arm
Presser Foot Lever
Buttonhole Lever (2049, 2041)

2
WIND THE BOBBIN
1. PULL THE HANDWHEEL OUT.
2. DRAW THE THREAD FROM THE SPOOL THROUGH THE BOBBIN WINDING TENSION
DISCS (A).
3. PULL THE END OF THE THREAD THROUGH THE BOBBIN AS SHOWN.
PLACE THE BOBBIN ONTO THE BOBBIN WINDING SPINDLE, (B) WITH THE END OF
THE THREAD COMING FROM THE TOP OF THE BOBBIN.
PUSH THE BOBBIN WINDING SPINDLE TO THE RIGHT UNTIL IT CLICKS.
4. HOLDING THE END OF THREAD, START THE MACHINE. WHEN THE BOBBIN IS
SLIGHTLY FILLED, SNIP OFF THE END OF THE THREAD.
5. WIND THE THREAD UNTIL THE BOBBIN STOPS. REMOVE THE BOBBIN.
6. PUSH THE HANDWHEEL TO THE LEFT.
4 HOLDING THE LATCH OPEN,
POSITION THE CASE INTO THE
SHUTTLE AND RELEASE THE
LATCH.
5 THE CASE SHOULD LOCK INTO
PLACE WHEN THE LATCH IS
RELEASED.
1 PLACE THE BOBBIN IN THE
BOBBIN CASE MAKING SURE
THE THREAD FEEDS
CLOCKWISE, AND IS COMING
FROM THE BOBBIN AS SHOWN.
2 PULL THE THREAD THROUGH
THE SLOT OF THE CASE AS
SHOWN.
3 PULL THE THREAD UNDER THE
TENSION SPRING, AND THROUGH
THE OPENING AS SHOWN ABOVE.
B
A

3
PREPARE YOUR TOP THREAD
THE STEP NUMBER CORRESPONDS WITH THE NUMBER IN THE ILLUSTRATIONS.
THE DOTTED LINES SHOW PLACES WHERE THE LOOPS THREAD AND IS PULLED
TIGHT.
RAISE THE TAKE-UP LEVER TO ITS HIGHEST POSITION BY TURNING THE
HANDWHEEL TOWARD YOU.
RAISE THE PRESSER FOOT LEVER.
PLACE THE SPOOL ON THE 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. DRAW THE THREAD DOWN AGAIN, 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.
1
2
3
4
5
1
2
34
5

4
STITCH SELECTOR / STITCH LENGTH /
STITCH WIDTH CONTROLS
0 1 2 3 4
ACD
E
F
G
H
I
J
K
L
21
0
4
3
21
0
4
3
3
4
5210
ACDEFGH I JKL
GH I JKL
A
AACDEFBH
STITCH SELECTOR
RAISE THE NEEDLE AND TURN THE STITCH
SELECTOR DIAL TO SET THE ARROW MARK
TO THE DESIRED PATTERN.
2049: A to L
2041: A to H
2018: A to G (No stretch patterns)
STITCH LENGTH (2049, 2041)
STITCH WIDTH (2049, 2041)
TURN THE STITCH WIDTH DIAL TO SET THE
ARROW MARK TO THE DESIRED WIDTH.
TURN THE STITCH LENGTH DIAL TO SET
THE ARROW MARK TO THE DESIRED
LENGTH.
SET THE ARROW MARK TO "S.S."WHEN
SELECTING STRETCH PATTERNS.

5
WHAT TO DO WHEN
CONDITION CAUSE HOW TO FIX REFERENCE
1. SKIPPING 1.NEEDLE IS NOT INSERTED INSERT THE NEEDLE PROPERLY.
STITCHES PROPERLY.
2.NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE.
3.INCORRECTLY THREADED RETHREAD.
4.NEEDLE OR THREAD ARE USE THE RECOMMENDED
INAPPROPRIATE FOR SEWING NEEDLE AND THREAD.
FABRIC BEING SEWN.
5.SEWING ON STRETCH USE A #11 BLUE TIP NEEDLE.
FABRIC
6.INAPPROPRIATE NEEDLE SEE MECHANICAL P.20
BAR HEIGHT. ADJUSTMENT
“NEEDLE BAR HEIGHT”.
7.INAPPROPRIATE NEEDLE SEE MECHANICAL P.21
TO HOOK TIMING ADJUSTMENT “NEEDLE
TIMING TO SHUTTLE”.
8.INAPPROPRIATE NEEDLE SEE MECHANICAL P.17,18
TO HOOK CLEARANCE ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND
HOOK”.
2. FABRIC NOT 1.INCORRECT F.D. HEIGHT SEE MECHANICAL P.19
MOVING ADJUSTMENT “FEED DOG
HEIGHT”.
2.THREADS ARE JAMMED MAKE SURE TO BRING
UNDER THE NEEDLE PLATE. BOTH NEEDLE AND BOBBIN
THREAD UNDER THE FOOT
WHEN STARTING SEWING.
3.FEED DOG TEETH ARE CHANGE THE FEED DOG.
WORN.

6
CONDITION CAUSE HOW TO FIX REFERENCE
3. BREAKING 1.INITIAL SEWING SPEED IS START WITH MEDIUM SPEED.
UPPER 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 P.12
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.
4. BREAKING 1.INCORRECTLY THREADED THREAD BOBBIN CASE
BOBBIN BOBBIN CASE. CORRECTLY.
2.TOO MUCH THREAD IS ADJUST THE POSITION OF
WOUND ON THE BOBBIN. STOPPER.
3.LINT IS STUCK INSIDE THE CLEAN THE HOOK RACE.
BOBBIN HOLDER.
4.THREAD QUALITY IS CHANGE TO A HIGH QUALITY
POOR. SEWING THREAD.
5.THREAD IS JAMMING ON CLEAR OUT THE JAMMING
THE BOBBIN. THREAD.
6.BOBBIN THREAD TENSION IS ADJUST BOBBIN THREAD P.13
TOO STRONG. TENSION CORRECTLY.
5. NEEDLE 1.NEEDLE IS HITTING THE SEE MECHANICAL P.16
BREAKS NEEDLE PLATE. ADJUSTMENT “NEEDLE DROP.”
2.NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE.
3.NEEDLE IS HITTING THE SEE MECHANICAL P.17, 18
HOOK RACE. ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND HOOK”.
4.THE FABRIC MOVES WHILE SEE MECHANICAL P.15
THE NEEDLE IS IN IT, OR THE ADJUSTMENT “NEEDLE SWING”.
NEEDLE ZIGZAGS
WHILE IN THE FABRIC.
5.FABRIC IS BEING PULLED TOO GUIDE THE FABRIC GENTLY
STRONGLY WHILE SEWING. WHILE SEWING.
THREAD
THREAD

7
6. NOISY 1. BACKLASH BETWEEN SEE MECHANICAL P.18
OPERATION SHUTTLE HOOK GEAR AND ADJUSTMENT “CLEARANCE
LOWER SHAFT GEAR IS TOO BETWEEN NEEDLE AND HOOK
BIG. (NO.2)”.
2. INAPPROPRIATE BELT SEE MECHANICAL P.26
TENSION. ADJUSTMENT “MOTOR BELT
TENSION”.
3. NOT ENOUGH OIL. APPLY OIL. P.28
7. DEFORMATION 1. INAPPROPRIATE NEEDLE SEE MECHANICAL P.15
PATTERN SWING TIMING. ADJUSTMENT “NEEDLE
SWING”.
2. INAPPROPRIATE SEE MECHANICAL P.25
DISENGAGEMENT OF CAM ADJUSTMENT
FOLLOWER. “DISENGAGEMENT OF CAM
3. UPPER THREAD TENSION ADJUST UPPER THREAD P.12
IS TOO STRONG. TENSION CORRECTLY.
CONDITION CAUSE HOW TO FIX REFERENCE
FOLLOWER”.

8
SERVICE ACCESS
FACE COVER
TO REMOVE
1. REMOVE THE FACE COVER BY REMOVING THE CAP (A) AND SCREW (B).
TO ATTACH
2. ATTACH THE FACE COVER WITH THE SCREW, AND THEN, REPLACE THE CAP.
(A)
(B)

9
SERVICE ACCESS
FRONT COVER
TO REMOVE
1. REMOVE THE FACE COVER. (SEE PAGE 8.)
2. LOOSEN THE SETSCREWS (A), (B), AND (C), AND THEN, REMOVE THE FRONT COVER
BY REMOVING THE SETSCREWS (D),(E),(F),(G),(H),(I) AND (J).
NOTE: UNHOOK THE TAB (L) FROM THE REAR COVER WHEN REMOVING THE
FRONT COVER.
TO ATTACH

A
B
C
D
E
F
G
H
IJ
L
CAP
3. FOLLOW THE ABOVE PROCEDURE IN REVERSE.

10
SERVICE ACCESS
REAR COVER
TO REMOVE
1 REMOVE THE FACE COVER AND FRONT COVER (SEE PAGES 8,9).
2 LOOSEN THE SETSCREWS (A), (B) AND (C), AND REMOVE SETSCREWS (D), (E) AND
(F).
3 PULL UP THE SPOOL PINS.REMOVE THE MACHINE SOCKET. REMOVE THE REAR
COVER CLEARING THE PRESSER FOOT LIFTER FROM THE SLIT ON THE COVER.
TO ATTACH
4. FOLLOW THE ABOVE PROCEDURE IN REVERSE.
A
B
C
D
E
REAR COVER
F

11
MECHANICAL ADJUSTMENT
TOP TENSION
TO CHECK:
THE STANDARD UPPER THREAD TENSION SHOULD BE BETWEEN 65 - 95g, WHEN
PULLING THE THREAD (COTTON THREAD #50) IN THE DIRECTION OF (B) WITH THE
TENSION DIAL SETTING AT “3”. (MAKE SURE THE FOOT IS LOWERED.)
IF THE TENSION IS OUT OF THE STANDARD RANGE, ADJUST IT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE FRONT PANEL COVER UNIT. (SEE PAGE 10.)
2. TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (D), WHEN THE UPPER
THREAD TENSION IS TOO TIGHT.
TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (E), WHEN THE UPPER
THREAD TENSION IS TOO LOOSE.
3. ATTACH THE FRONT PANEL COVER UNIT.
C
E
D
B

12
MECHANICAL ADJUSTMENT
BOBBIN TENSION
TO CHECK:
SET THE BOBBIN IN THE BOBBIN CASE, AND PASS THE THREAD (COTTON #50)
THROUGH THE TENSION SPRING.
THE BOBBIN THREAD TENSION SHOULD BE BETWEEN 45 - 55g, WHEN PULLING THE
THREAD IN THE DIRECTION OF (B).
IF THE TENSION IS OUT OF THE RANGE, ADJUST IT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. TURN THE ADJUSTING SCREW (C) IN THE DIRECTION OF (D), WHEN THE BOBBIN
THREAD TENSION IS TOO TIGHT.
2. TURN THE ADJUSTING SCREW (C) IN THE DIRECTION OF (E), WHEN THE BOBBIN
THREAD TENSION IS TOO LOOSE.
(B)
(E)
(D)
(C)
COTTON THREAD #50

13
MECHANICAL ADJUSTMENT
PRESSER BAR HEIGHT AND ALIGNMENT
TO CHECK:
1. RAISE THE PRESSER FOOT LEVER (A).
2. THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE (E)
SHOULD BE 6.0MM (0.24").
ADJUSTMENT PROCEDURE:
1. REMOVE THE SCREW (B), AND TAKE THE LAMP SOCKET OFF.
2. RAISE THE PRESSER FOOT LEVER, AND LOOSEN THE SCREW (C) ON THE PRESSER
BAR HOLDER.
ADJUST THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE
(E) TO 6.0MM (0.24").
3. TIGHTEN THE SCREW (C) SECURELY.
4. TIGHTEN THE SCREW (B) TO SECURE THE LAMP SOCKET.
NOTE: WHEN YOU TIGHTEN THE SCREW (C), MAKE SURE THAT BOTH SIDES OF
THE PRESSER FOOT ARE PARALLEL TO THE FEED DOG SLOTS (F) ON THE
NEEDLE PLATE.
(A)
(B)
(C) (D)
(E)
(F)
6.0MM

14
MECHANICAL ADJUSTMENT
NEEDLE SWING
TO CHECK:
IF THE NEEDLE BAR STARTS MOVING SIDEWAYS WHILE THE NEEDLE IS IN THE
FABRIC (WHEN SEWING A ZIGZAG PATTERN WITH THE MAXIMUM ZIGZAG WIDTH),
ADJUST THE NEEDLE SWING BY THE FOLLOWING PROCEDURE:
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL TO THE MAXIMUM ZIGZAG WIDTH, AND
REMOVE THE FRONT COVER. (SEE PAGE 9.)
2. LOOSEN THE TWO SET SCREWS.
3. ADJUST THE NEEDLE SWING BY TURNING THE HANDWHEEL WHILE HOLDING THE
WORM (SO AS NOT TO ROTATE IT) UNTIL THE NEEDLE SWING STARTS AT 2 - 3MM
ABOVE THE NEEDLE PLATE (IN ITS ASCENDING MOTION).
4. TIGHTEN THE TWO SET SCREWS.
5. MOUNT THE FRONT COVER.
NOTE: AFTER ADJUSTING THE NEEDLE SWING, CHECK THAT THE UPPER SHAFT
WORM AND GEAR ROTATE SMOOTHLY WITHOUT ANY BACKLASH
BETWEEN THEM.
UPPER SHAFT WORM
SET SCREW
(2 PCS.)
2–3 MM
GEAR

15
MECHANICAL ADJUSTMENT
NEEDLE DROP POSITION
TO CHECK:
WHEN THE NEEDLE SWINGS AT THE MAXIMUM ZIGZAG WIDTH, THE DISTANCE
BETWEEN BOTH ENDS OF THE NEEDLE HOLE ON THE NEEDLE PLATE AND THE NEEDLE
DROP POSITIONS, SHOULD BE EQUAL.
IF NOT, MAKE THE FOLLOWING ADJUSTMENTS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE FACE COVER. (SEE PAGE 8.)
2. SET THE PATTERN SELECTOR DIAL AT THE MAXIMUM ZIGZAG WIDTH.
3. LOOSEN THE SET SCREW.
4. TURN THE ECCENTRIC PIN TO ADJUST THE NEEDLE DROP POSITION.
5. TIGHTEN THE SET SCREW.
NOTE:CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT.
ECCENTRIC PIN
SET SCREW
BOTH CLEARANCE SHOULD BE EQUAL

16
MECHANICAL ADJUSTMENT
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1)
TO CHECK:
THE CLEARANCE BETWEEN NEEDLE AND THE SHUTTLE HOOK SHOULD BE BETWEEN
– 0.05 – +0.10MM.
IF NOT, MAKE THE FOLLOWING ADJUSTMENTS:
ADJUSTMENT PROCEDURE:
1. OPEN THE FACE COVER PLATE.
2. SET THE PATTERN SELECT DIAL “ ”, WIDTH SELECTOR DIAL “ 5 ”.
3. LOOSEN THE SET SCREW (A), AND MOVE THE NEEDLE BAR SUPPORTER BACK OR
FORTH , TO GET A CLEARANCE BETWEEN –0.05 TO +0.10MM.
* WHEN THE CLEARANCE IS TOO WIDE, MOVE THE NEEDLE BAR SUPPORTER
TOWARD DIRECTION (B).
* WHEN THE CLEARANCE IS TOO NARROW, MOVE THE NEEDLE BAR SUPPORTER
TOWARD DIRECTION (C).
NOTE: AFTER THIS ADJUSTMENT, CHECK IF THE CLEARANCE BETWEEN THE
NEEDLE AND NEEDLE PLATE IS MORE THAN 0.15MM, AS SHOWN IN FIGURE
(D). IF NOT, ADJUST THE CLEARANCE BETWEEN THE NEEDLE AND THE
SHUTTLE HOOK BY USING THE ADJUSTMENT METHOD NO.2 ON PAGE 13.
AFTER READJUSTMENT, THE CLEARANCE BETWEEN THE NEEDLE AND
THE NEEDLE PLATE SHOULD BE MORE THAN 0.15MM.
SET SCREW A DIRECTION C
DIRECTION B
NEEDLE BAR SUPPORTER
–0.05-+0.10MM
FIGURE D
CLEARANCE BETWEEN THE NEEDLE
AND THE NEEDLE PLATE IS
MORE THAN 0.15MM

17
SET SCREW A
– 0.05 – +0.10MM
CLEARANCE SHOULD BE EQUAL
SHUTTLE RACE
SET SCREW B (2 PCS.) LOWER SHAFT
BUSHING (FRONT)
NEEDLE
SHUTTLE RACE SPRING
MECHANICAL ADJUSTMENT
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2)
TO CHECK:
USE THIS ADJUSTMENT (NO.2) WHEN ADJUSTMENT NO.1 CAN NOT BE USED.
THE CLEARANCE BETWEEN THE NEEDLE AND THE SHUTTLE HOOK SHOULD BE
BETWEEN – 0.05 – +0.10mm.
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL AT “ ”. WIDTH SELECTOR DIAL “ 5 ”.
(STITCH LENGTH DIAL AT ANY POSITION.)
2. REMOVE THE REAR COVER. (SEE PAGE 11.)
3. LOOSEN THE SCREW (A) ON THE LOWER SHAFT BUSHING, AND SHIFT THE LOWER
SHAFT ABOUT 0.5MM TO THE RIGHT TO DISENGAGE THE GEARS.
4. LOWER THE NEEDLE, AND LOOSEN THE TWO SHUTTLE RACE SET SCREWS (B).
PUSH OR PULL THE SHUTTLE RACE UNIT AXIALLY, TO ADJUST THE CLEARANCE
BETWEEN THE NEEDLE AND THE SHUTTLE HOOK IN THE RANGE OF – 0.05 –
+0.10MM.
5. SET THE PATTERN SELECT DIAL AT “ ”, TURN THE HANDWHEEL TO CHECK
IF THE CLEARANCE BETWEEN THE NEEDLE, AND THE INNER EDGES OF THE
SHUTTLE RACE SPRING AT THE LEFT AND RIGHT NEEDLE DROPS, ARE EQUAL.
IF NOT, MAKE AN ADJUSTMENT BY TURNING THE SHUTTLE RACE UNIT.
6. TIGHTEN THE TWO SHUTTLE RACE SET SCREWS (B).
7. SHIFT THE LOWER SHAFT TO THE LEFT TO GET THE GEARS BACK TO THE
ORIGINAL POSITION WHILE ADJUSTING THE BACKLASH.
8. TIGHTEN THE SCREW (A) FIRMLY.
9. ATTACH THE REAR COVER.
NOTE: THE BACKLASH SHOULD BE LESS THAN 0.3MM AND THE LOWER SHAFT
CAN TURN SMOOTHLY.
AFTER THE ADJUSTMENT, CHECK THE HOOK TIMING.

18
GAUGE FEED DOG HEIGHT
FACE (A) FACE (B) (RED)
1.25MM 1.00MM
NOT MOVING MOVING CORRECT
NOT MOVING NOT MOVING LOW
MOVING MOVING HIGH
(B)
(C)
(A) #68367
MECHANICAL ADJUSTMENT
FEED DOG HEIGHT
MACHINE SETTING
1. STITCH LENGTH: SET AT 4.
2. NEEDLE BAR: AT ITS HIGHEST POSITION.
TO CHECK:
1. RAISE THE PRESSER FOOT.
2. PLACE THE FEED DOG HEIGHT GAUGE #68367 (A) ON THE NEEDLE PLATE.
3. TURN THE HANDWHEEL TOWARD YOU BY HAND, AND CHECK THE FEED DOG
HEIGHT. (REFER TO CHART BELOW.)
ADJUSTMENT PROCEDURE:
1. OPEN THE SHUTTLE COVER.
2. LOOSEN THE SCREW, (B) AND TURN THE ECCENTRIC PIN (C) IN EITHER
DIRECTION TO ADUST THE FEED DOG HEIGHT AS REQUIRED.
3. TIGHTEN THE SCREW (B) SECURELY.