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Brother TN-845B Instruction Manual page 88

Twin needle needle feed lock stitcher with thread trimmer
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11. STANDARD ADJUSTMENTS
11. STANDARDEINSTELLUNGEN
11. REGLAGES STANDARD
11. AJUSTES ESTANDARES
[845B, 848B, 875B]
Needle bar lift amount
Nadelstangenhub
!3
a
b
!2
Lower
!7
Tiefer
Plus bas
Inferior
!9
Higher
Höher
Plus haut
!8
Superior
Stitch length
Stichlänge
Longueur de point
Largo de puntada
Needle bar
Needle feed
height (H)
Nadeltransport
Nadelstangen-
Entraînement
höhe (H)
par aiguille
Hauteur (H) de la
Alimentador por aguja
barre à aiguille
Altura de la barra
Lower feed
de agujas (H)
Untertransport
Entraînement inférieur
Alimentador inferior
01. Remove the needle plate.
02. Remove the feed dog.
03. Set the stitch length to either 2 (approx. 2 mm) or 3 (approx. 3 mm) on the scale, depending on the model and
specifications of the machine. (Refer to the table.)
04. Turn the machine pulley to raise the needle bar
for H).
The reference line
b
!5
The rotary hook tip
05. Tilt back the machine head, loosen the three screws
needle.
!6
06. Tighten the screws
07. The distance from the upper edge of the needle hole to the rotary hook tip
!5
hook tip
is aligned with the center of the needle.
08. Loosen the set screw
!9
09. Turn the screw
to adjust so that the distance from the upper edge of the needle hole to the rotary hook tip
1–1.5 mm.
10. After adjustment is completed, insert the needle bar clamp
and check that the distance is 1–1.5 mm.
Secure it by tightening the set screw
11. Install the feed dog.
12. Install the needle plate.
Quantité de relèvement de la barre à aiguille
Elevación de la barra de agujas
!5
Needle height
Nadelhöhe
Hauteur de l'aiguille
Altura de la aguja
!2
!8
Insert the needle clamp all the way into the needle bar.
Den Nadelhalter ganz in die Nadelstange hineinschieben.
Introduire le pince-aiguille à fond dans la barre à aiguille.
Introducir la ménsula de aguja hasta el fondo de la barra de agujas.
845B
C01
403
405
3 mm
3 mm
3 mm
3 mm
2.4 mm
2,4 mm
2,4 mm
2,4 mm
2 mm
2 mm
2 mm
2 mm
!2
on the needle bar
will be aligned with the lower edge of the needle bar supporter
must be aligned with the center of the needle at this time.
.
!7
and then pull the needle bar clamp
!7
.
Needle
Nadel
Aiguille
Aguja
1–1.5 mm
(H) mm
848B
407
903
905
907
2 mm
2 mm
2 mm
2 mm
2 mm
2 mm
2 mm
2 mm
!2
by H mm from its lowest position (refer to the table for the value
!6
, and then align the rotary hook tip
!8
downward to remove it.
!8
into the hole of the needle bar
– 73 –
!6
875B
401
403
405
407
3 mm
3 mm
3 mm
3 mm
2.4 mm
2,4 mm
2,4 mm
2,4 mm
!5
with the center of the
!5
must be 1–1.5 mm when the rotary
!2
as far as it will go,
!6
903
905
907
!3
.
!5
is
TN-840B, 870B
TL-840B

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This manual is also suitable for:

Tn-872bTn-875bTn-842bTl-847btl-848bTl-847bTl-848b