Janome FA4 User manual

SERVICE MANUAL
MODEL: FA4
First Edition: 15 November 2019

TABLE OF CONTENTS
TO CHANGE THE FACE PLATE UNIT .................................................................................................. 1
TO CHANGE THE BELT COVER............................................................................................................2
TO CHANGE THE TOP COVER UNIT....................................................................................................3
TO CHANGE THE FRONT COVER UNIT...............................................................................................4
TO CHANGE THE FREE ARM COVER UNIT.........................................................................................5
TO CHANGE THE MACHINE BASE.......................................................................................................6
TO CHANGE THE MACHINE SOCKET..................................................................................................7
TO ADJUST THE MOTOR BELT TENSION............................................................................................8
TO ADJUST THE NEEDLE HEIGHT.......................................................................................................9
TO ADJUST THE PRESSER BAR HEIGHT..........................................................................................10
TO ADJUST THE FEED DOG HEIGHT ................................................................................................11
TO ADJUST THE TIMING OF THE NEEDLE AND THE FEED DOG ...................................................12
TO ADJUST THE TIMING OF THE NEEDLE AND THE UPPER KNIFE ..............................................13
TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND
THE LOWER LOOPER/NEEDLE GUARDS ................................................................................14 to 16
TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND
THE FIXED NEEDLE GUARD ..............................................................................................................17
TO ADJUST THE POSITION OF THE CHAINING FINGER .................................................................18
TO ADJUST THE POSITION OF THE UPPER LOOPER.....................................................................19
TO ADJUST THE TIMING OF THE NEEDLE AND THE LOWER LOOPER .........................................20
TO ADJUST THE TIMING OF THE UPPER AND LOWER LOOPERS.................................................21
TO ADJUST THE CLEARANCE BETWEEN THE LOOPERS ..............................................................22
TO ADJUST THE CLEARANCE BETWEEN THE NEEDLE AND THE UPPER LOOPER ...................23
TO ADJUST THE POSITION OF THE KNlVES ....................................................................................24
TO ADJUST THE POSITION OF THE LOOPER THREAD GUlDE ......................................................25
TO ADJUST THE STITCH LENGTH .....................................................................................................26
TO ADJUST THE THREAD TENSION DIALS.......................................................................................27
PARTS LIST .................................................................................................................................28 to 50

1
TO CHANGE THE FACE PLATE UNIT
To remove:
1. Loosen the setscrew A and remove the face plate unit.
To attach:
2. Fit the U-groove of the face plate between the setscrew A and set plate, put the ribs of face plate into the front
cover unit, back cover unit and tighten the setscrew.
Top cover unit
Front cover unit
Face plate unit
U-groove
Back cover unit
Set plate
Setscrew A

2
TO CHANGE THE BELT COVER
To remove:
1. Loosen setscrew A and remove the setscrew B.
2. Remove the belt cover.
To attach:
3. Put the ribs of belt cover into the front cover unit and back cover unit and tighten setscrews A and B.
Front cover unit
Setscrew A
Belt cover
Back cover unit
Setscrew B

3
TO CHANGE THE TOP COVER UNIT
To remove:
1. Remove two setscrews A and remove the top cover unit.
To attach:
2. Put the ribs in the front cover unit.
3. Tighten two setscrews A.
Setscrew A
Top cover unit
Front cover unit
Rib