Janome HF2022 Page 4 Service Manual Download

Page: 4 / 27

WHAT TO DO WHEN

CONDITION

CAUSE

HOW TO FIX

REFERENCE

3. BREAKING

UPPER
THREAD

1. INITIAL SEWING SPEED IS

TOO FAST.

2. THREAD PATH IS

INCORRECT.

3. NEEDLE IS BENT OR

DULL.

4. UPPER THREAD TENSION

IS TOO STRONG.

5. NEEDLE SIZE IS

INAPPROPRIATE FOR
FABRIC.

6. NEEDLE EYE IS WORN.

7. NEEDLE HOLE IN NEEDLE

PLATE IS WORN OR
BURRED.

START WITH MEDIUM SPEED.

USE THE PROPER THREAD
PATH.

REPLACE WITH A NEW NEEDLE.

ADJUST UPPER THREAD
TENSION CORRECTLY.

USE APPROPRIATE NEEDLE
FOR FABRIC AND THREAD IN
USE.

CHANGE THE NEEDLE.

REPAIR THE HOLE OR REPLACE
THE NEEDLE PLATE.

P.7

4. BREAKNG

BOBBIN
THREAD

1. INCORRECTLY THREADED

BOBBIN CASE.

2. TOO MUCH THREAD IS

AROUND IN THE BOBBIN.

3. LINT IS STUCK INSIDE

THE BOBBIN HOLDER.

4. THREAD QUALITY IS TOO

LOW.

5. THREAD IS JAMMING

AROUNG THE BOBBIN.

6. BOBBIN THREAD TENSION

IS TOO STRONG.

THREAD BOBBIN CASE
CORRECTLY.

ADJUST THE POSITION OF
STOPPER.

CLEAN THE HOOK RACE.

CHANGE TO HIGH QUALITY
SEWING THREAD.

CLEAR OUT THE JAMMING
THREAD.

ADJUST BOBBIN THREAD
TENSION CORRECTLY.

P.8

5. NEEDLE

BREAKS

1. NEEDLE IS HITTING THE

NEEDLE PLATE.

2. NEEDLE IS BENT OR

WORN.

3. NEEDLE IS HITTING THE

HOOK RACE.

SEE MECHANICAL
ADJUSTMENT “NEEDLE DROP.”

CHANGE THE NEEDLE.

SEE MECHANICAL
ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND HOOK”

P.11

P.13, P.14

Summary of Contents for HF2022

Page 1: ...SERVICE MANUAL Model HF2022 ...

Page 2: ...D ALIGNMENT 9 NEEDLE SWING 10 NEEDLE DROP 11 HEIGHT OF FEED DOG 12 CLEARANCE BETWEEN NEEDLE AND HOOK NO 1 13 CLEARANCE BETWEEN NEEDLE AND HOOK NO 2 14 NEEDLE BAR HEIGHT 15 HOOK TIMING 16 FEED BALANCE ON STRETCH STITCH 17 BUTTOHOLE FEED BALANCE 18 BARTACK FEED OF BUTTONHOLE 19 DISENGAGEMENT OF CAM FOLLOWER NO 1 20 NEEDLE MOVEMENT FOR STRAIGHT STITCH 21 22 BUTTONHOLE FUNCTION 23 MOTOR BELT TENSION 2...

Page 3: ...NSERT THE NEEDLE PROPERLY CHANGE THE NEEDLE RETHREAD USE THE RECOMMENDED SEWING NEEDLE AND THREAD USE A 11 BLUE TIP NEEDLE SEE MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT SEE MECHANICAL ADJUSTMENT HOOK TIMING SEE MECHANICAL ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND HOOK P 15 P 16 P 13 P 14 2 FABRIC NOT MOVING 1 INCORRECT F D HEIGHT 2 THREAD ON BOTTOM SIDE OF FABRIC IS JAMMED UP 3 FEED DOG TEETH ARE WORN...

Page 4: ...E OR REPLACE THE NEEDLE PLATE P 7 4 BREAKNG BOBBIN THREAD 1 INCORRECTLY THREADED BOBBIN CASE 2 TOO MUCH THREAD IS AROUND IN THE BOBBIN 3 LINT IS STUCK INSIDE THE BOBBIN HOLDER 4 THREAD QUALITY IS TOO LOW 5 THREAD IS JAMMING AROUNG THE BOBBIN 6 BOBBIN THREAD TENSION IS TOO STRONG THREAD BOBBIN CASE CORRECTLY ADJUST THE POSITION OF STOPPER CLEAN THE HOOK RACE CHANGE TO HIGH QUALITY SEWING THREAD CLE...

Page 5: ... SHAFT GEAR IS LOOSE 5 NOT ENOUGH OIL SEE MECHANICAL ADJUSTMENT CLEARANCE BETWEEN NEEDLE AND HOOK NO 2 ELIMINATE THE LOOSENESS SEE MECHANICAL ADJUSTMENT MOTOR BELT TENSION ELIMINATE THE LOOSENESS OIL ALL MOVING PARTS P 14 P 24 7 DEFORMATION PATTERN 1 INAPPROPRIATE ZIGZAG SYNCHRONIZATION 2 INAPPROPRIATE DISENGAGEMENT OF AM FOLLOWER 3 UPPER THREAD TENSION IS TOO STRONG 4 INAPPROPRIATE FEED BALANCE S...

Page 6: ...W AND REMOVE THE BELT COVER BY REMOVING THE BELT COVER RIB FROM THE FRONT COVER TO ATTACH 2 MOUNT THE BELT COVER RIB TO THE FRONT COVER AND THEN MOUNT THE BELT COVER BY THE SET SCREW BASE COVER TO REMOVE 1 REMOVE THE BASE COVER BY FOUR SET SCREWS TO ATTACH 2 MOUNT THE BASE COVER BY FOUR SET SCREWS FRONT COVER RIB BELT COVER SET SCREW SET SCREW SET SCREW BASE COVER BASE COVER NOTCH FACE PLATE CAP S...

Page 7: ...EMOVE SELECTOR DIALS A AND B NOTE NUMBER OF SELECTOR DIALS IS AS FOLLOWS MODEL 2022 3 DIALS 3 LOOSEN SET SCREWS C D E F G AND THEN REMOVE THE FRONT COVER BY REMOVING SET SCREW H I AND J TO ATTACH 2 MOUNT THE FRONT COVER IN REVERSE PROCEDURE OF THE REMOVING C H I FRONT COVER A B J D E CAP F 5 ...

Page 8: ... REMOVE THE SET SCREW C D E F AND G 4 PULL UP THE 2 SPOOL PINS I AND J AND LOWER THE PRESSER FOOT LIFTER K 5 WHILE PUSHING THE REAR COVER L NEAR THE NOTCHES L AND M PULL UPPER PART OF THE REAR COVER SEE X 6 PULL LOWER PART OF THE REAR COVER TOWARD YOU AND SLIDE IT TO THE LEFT SEE Y AND Z WHILE SLIDING THE REAR COVER TO THE LEFT REMOVE THE PRESSER BAR LIFTER K A A I D K C H B G E F X Y M L Z 6 ...

Page 9: ...ION DIAL AT 3 MAKE SURE THE FOOT SHOULD BE LOWERED IF THE TENSION IS OUT OF THE STANARD RANGE ADJUST IT AS FOLLOWS TO ADJUST 1 REMOVE THE FRONT COVER UNIT SEE PAGE 5 2 TURN THE ADJUSTING NUT C IN THE DIRECTION OF D WHEN THE UPPER THREAD TENSION IS TOO TIGHT TURN THE ADJUSTUING NUT C IN THE DIRECTION OF E WHEN THE UPPER THREAD TENSON IS TOO LOOSE 3 ATTACH THE FRONT PANEL COVER UNIT B E C C 7 ...

Page 10: ...BIN THREAD TENSION SHOULD BE 45G 55G WHEN PULLING THE THREAD IN THE DIRECTON OF B IF THE TENSION IS OUT THE RANGE ADJUST IT AS FOLLOWS TO ADJUST 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 COTTON THREAD 50 E D C 8 ...

Page 11: ...E 3 RAISE THE PRESSER FOOT AND LOOSE PRESSER BAR BRACKET SCREW AND ADJUST THE HEIGHT 6 0MM 4 CHECK IF THE PRESSER FOOT IS PARALLEL TO THE OPENINGS FOR THE FEED DOG ON THE NEEDLE PLATE IF NOT ADJUST IT 5 TIGHTEN THE PRESSER BAR BRACKET SCREW WHILE HOLDING THE PRESSER BAR TO KEEP THE FOOT PALALLEL TO THE OPENINGS 6 ATTACH THE LAMP HOLDER SET PLATE 7 ATTACH THE FACE PLATE 6 0 mm PRESSER FOOT NEEDLE P...

Page 12: ...L WITH MAXIMUM ZIGZAG WIDTH AND REMOVE THE FRONT COVER SEE PAGE 5 2 LOOSEN TWO SET SCREWS 3 ADJUST THE NEEDLE SWING BY TURNING THE BALANCE WHEEL WHILE PRESSING THE WORM SO AS NOT TO ROTATE IT UNTIL THE NEEDLE SWING STARTS AT 2 MM 3 MM ON THE NEEDLE PLATE AFTER THE NEEDLE HAS COME OUT OF THE RIGHT SIDE OF THE NEEDLE HOLE 4 TIGHTEN TWO SET SCREWS 5 MOUNT THE FRONT COVER NOTE AFTER ADJUSTING THE NEED...

Page 13: ...S SHOULD BE EQUAL IF NOT MAKE AN ADJUSTMENT AS FOLLOWS TO ADJUST 1 REMOVE THE FACE PLATE SEE PAGE 4 2 SET THE PATTERN SELECTOR DIAL AT MAXIMUM ZIGZAG WIDTH 3 LOOSEN THE SET SCREW 4 TURN THE ECCENTRIC PIN TO AJUST THE NEEDLE DROP POSITION 5 TIGHTEN THE SET SCREW 6 ATTACH THE FACE PLATE NOTE CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT SET SCREW ECCENTRIC PIN BOTH CLEARANCE SHOULD BE EQUAL 11 ...

Page 14: ...NGE MAKE AN ADJUSTMENT AS FOLLOWS TO ADJUST 1 SET THE STITCH LENGTH DIL AT 4 PATTERN SELECTOR DIAL AT ANY POSITION 2 LOWER THE PRESSER FOOT AND TURN THE BALANCE WHEEL UNTIL THE FEED DOG COMES TO ITS HIGHEST POINT 3 LOOSEN THE SET SCREW A 4 TURN THE FEED LIFTING PIN TO ADJUST THE HEIGHT OF FEED DOG 0 75 MM 0 90 MM 5 TIGHTEN THE SET SCREW A 6 TURN THE BALANCE WHEEL TO RECHECK THE HEIGHT OF FEED DOG ...

Page 15: ...EARANCE BETWEEN 0 MM TO 0 15 MM WHEN CLEARANCE IS TOO WIDE MOVE THE NEEDLE BAR SUPPORTER TO DIRECTION B WHEN CLEARANCE IS TOO NARROW MOVE THE NEEDLE BAR SUPPORTER TO DIRECTION C NOTE AFTER THIS ADJSTMENT CHECK IF THE CLEARANCE BETWEEN NEEDLE AND NEEDLE PLATE IS MORE THAN 0 15 MM AS SHOWN IN FIGURE D IF NOT ADJUST THE CLEARANCE BETWEEN NEEDLE AND SHUTTLE RACE BY USING METHOD OF ADJUSTMENT NO 2 IN P...

Page 16: ... THE SHUTTLE RACE IN THE RANGE OF 0 MM 0 15 MM 4 SET THE PATTERN SELECTOR DIAL AT TURN THE BALANCE WHEEL TO CHECK IF THE CLEARANCE BETWEEN THE NEEDLE AND 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 NOTE FOR MODEL 2022 SET THE PATTERN SELECTOR DIAL AT SET THE WIDTH SELECTOR DIAL AT 5 5 TIGHTEN THE TWO...

Page 17: ... STITCH LENGTH DIAL AT ANY POSITION NOTE FOR MODEL 2022 SET THE PATTERN SELECTOR DIAL AT SET THE WIDTH SELECTOR DIAL AT 0 3 REMOVE THE SHUTTLE RACE RING 4 TURN THE BALANCE WHEEL TOWARD YOU UNTIL TIP OF SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE 5 LOOSEN THE NEEDLE BAR CONNECTING STUD SET SCREW 6 ADJUST THE HEIGHT OF THE NEEDLE BAR BY REMOVING THE NEEDLE BAR UPWARD OR DOWNWARD WITHOUT TURNING I...

Page 18: ... UNTIL THE TIP OF SHUTTLE HOOK MEETS THE LEFT SIDE OF NEEDLE 6 LOOSEN THW LOWER SHAFT CRANK ARM SET SCREW 2 PCS 7 WHILE HOLDING THE SHUTTLE HOOK NUT TO TURN TURN THE BALANCE WHEEL TOWARD YOU UNTIL NEEDLE COMES TO ITS LOWEST POSITION THEN FURTHER TURN THE BALANCE WHEEL TO RAISE THE NEEDLE ABOUT 1 7 MM FROM ITS LOWEST POSITION 8 TIGHTEN THE SET SCREW 9 TURN THE BARANCE WHEEL TOWARD YOU TO CHECK IF T...

Page 19: ...NS MAKE AN ADJUSTMENT AS FOLLOWS TO ADJUST 1 REMOVE THE CAP 2 SET THE PATTERN SELECTOR DIAL AT AND THE STITCH LENGTH DIAL AT SS NOTE FOR MODEL 2022 SET THE PATTERN SELECTOR DIAL AT SET THE WIDTH SELECTOR DIAL AT 0 SET THE STITCH LENGTH DIAL AT SS 3 TURN THE STRETCH STITCH ADJUSTING SCREW IN THE DIRECTION OF C WHEN A B OR IN THE DIRECTION OF D WHEN A B 4 MOUNT THE CAP STRETCH STITCH ADJUSTING SCREW...

Page 20: ...IDE ROW FORWARD FEEDING IS CONSIDERED ACCEPTABLE TO ADJUST 1 CONFIRM THE STITCHES BY SEWING BUTTONHOLES AND REMOVE THE CAP 2 TURN THE ADJUSTING SCREW IN THE DIRECTION OF C IN CASE OF A RIGHT STITCHES ARE ROUGH OR IN THE DIRECTION OF D IN CASE OF B LEFT STITCHES ARE ROUGH 3 MOUNT THE CAP IN CASE OF MODEL 1541 HAVING ONE STEP BUTTONHOLE FUNCTION THE FORWARD FEEDING AND BACKWARD FEEDING ARE REVERSED ...

Page 21: ... 2 REMOVE THE FRONT COVER SEE PAGE 5 3 PLACE A PIECE OF PAPER UNDER THE FOOT AND TURN THE BALANCE WHEEL IF THE PAPER IS FED FORWARD TURN THE ADJUSTING SCREW IN THE DIRECTION OF C IF THE PAPER IS FED BACKWARD TURN THE ADJUSTING SCREW IN THE DIRECTION OF D 4 MOUNT THE FRONT COVER IN CASE OF MODEL 1541 HAVING ONE STEP BUTTONHOLE FUNCTION THE ADJUSTING SCREW AND PRESSER FOOT ARE DIFFERENT FROM THOSE D...

Page 22: ...AM STRAIGHT CAM AND ALSO PUT THE CAM FOLLOWER RELEASING ARM TO THE PATTERN SELECTOR CAM 4 LOOSEN THE SET SCREW 5 MOVE ADJUSTING PLATE INT THE DIRECTON OF ARROW UNTIL TOUCH THE THE RELEASING ARM AND TIGHTEN SET SCREW AFTER ADJUSTMENT CHECK THAT THE CLEARANCE BETWEEN THE ZIGZAG CAM AND THE CAM FOLLOWER IS ABOUT 0 3 MM WHEN PUTTING THE CAM FOLLOWER RELEASING ARM ONTO POSITION A OF PATTERN SELECT CAM ...

Page 23: ...HE BALANCE WHEEL TO PUT THE CAM FOLLOWER ONTO THE TOP CONVEX OF THE ZIGZAG CAM ZZ CAM AND SET THE ZZ ADJUSTING ARM TO TOUCH THE ZZ ADJUSTING CAM THEN SET THE CAM FOLLOWER RELEASING ARM TO LIGHTLY TOUCH THE ADJUSTING PLATE AND TIGHTEN THE SET SCREW AFTER THIS ADJUSTMENT CHECK IF NEEDLE IS NOT ZIGZAGING OR CLEARANCE BETWEEN NEEDLE AND NEEDLE HOLE IS MORE THAN 0 2 MM AND NEEDLE POSITION IS CORRECT 5 ...

Page 24: ...22 MECHANICAL ADJUSTMENT BLANK PAGE ...

Page 25: ... BE OBTAINED THEN CHECK AND ADJUST IN THE FOLLOWING PROCEDURE TO ADJUST 1 REMOVE THE FACE PLATE SEE PAGE 4 2 TURN THE ADJUSTING SCREW IN THE DIRECTION OF A IF THE BUTTONHOLE STITCH LENGTH IS LONGER THAN THE STANDARD OR IN THE DIRECTION OF B IF THE BUTTONHOLE STITCH LENGTH IS SHORTER THAN THE STANDARD 3 MOUNT THE FACE PLATE ABOUT 3 mm 1 2 3 4 ADJUSTING SCREW BUTTONHOLE LEVER 23 ...

Page 26: ...ELT TENSION MAY CAUSE JUMPING OF THE BELT TEETH ON THE MOTOR PULLEY 2 THE CORRECT MOTOR BELT TENSION IS THAT THE DEFLECTION OF MOTOR BELT IS ABOUT 7 MM 0 28 9 MM 0 36 WHEN PUSHING THE MOTOR BELT BY FINGER AT ABOUT 300 G LOAD TO ADJUST 1 REMOVE THE BELT COVER 2 LOOSEN THE SCREWS A AND B 3 MOVE THE MOTOR UP OR DOWN TO ADJUST THE DEFELECTION ABOUT 7 MM 0 28 9 MM 0 36 4 TIGHTEN THE SCREWS A AND B 300 ...

Page 27: ...WIRING BLUE CORD BROWN CORD BLUE CORD FROM MOTOR FROM LAMP SOCKET BROWN CORD 25 ...

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