Brother International BAS-311E Network Users Manual - English - Page 66

Adjusting the lowest point of the presser foot

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Chapter 4. Adjustments 8. Adjusting the lowest point of the presser foot 1. Turn the pulley to align the needle bar with the shuttle hook. At this time, turn the stepping work clamp con- necting rod q to turn stepping work clamp arm F w in the direction of the arrow, and move the stepping link w o assy e in the direction of the arrow. When the presser foot is at the lowest position, secure the stepping work clamp connecting rod q to the upper shaft t using the i set screw r. Adjust the lift stroke of the presser foot to 3 - 5 mm, and e 5 - 8 mm. When the clearance between the presser bar lifter y and the presser bar bush u is 0.5 - 1 mm, tighten the bolt of stepping work clamp arm F w. (At this time, the match mark i of stepping work clamp arm F w will y be almost aligned with that of arm mark o.) Note: Make sure that stepping work clamp arm F w has 0.5 - 1mm no end play. !6 u !1 !0 r q t !5 !4 !2 2. Attach the needle to the needle bar. 3. Turn the pulley to insert the needle !2 into the hole of the presser foot !4. Turn the presser bar !5 so that the needle !2 is in the center of the hole of the presser foot !4, and tighten the screw of the needle bar clamp !6. 58 BAS-311E.311EL.326E.326EL

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58
BAS-311E.311EL.326E.326EL
Chapter 4. Adjustments
8. Adjusting the lowest point of the presser foot
1.
Turn the pulley to align the needle bar with the shuttle
hook.
At this time, turn the stepping work clamp con-
necting rod
q
to turn stepping work clamp arm F
w
in
the direction of the arrow, and move the stepping link
assy
e
in the direction of the arrow.
When the presser
foot is at the lowest position, secure the stepping work
clamp connecting rod
q
to the upper shaft
t
using the
set screw
r
.
Adjust the lift stroke of the presser foot to 3 - 5 mm, and
5 - 8 mm.
When the clearance between the presser bar
lifter
y
and the presser bar bush
u
is 0.5 - 1 mm, tighten
the bolt of stepping work clamp arm F
w
.
(At this time,
the match mark
i
of stepping work clamp arm F
w
will
be almost aligned with that of arm mark
o
.)
Note:
Make sure that stepping work clamp arm F
w
has
no end play.
2.
Attach the needle to the needle bar.
3.
Turn the pulley to insert the needle
!
2
into the hole of the
presser foot
!4
.
Turn the presser bar
!5
so that the
needle
!2
is in the center of the hole of the presser foot
!
4
, and tighten the screw of the needle bar clamp
!
6
.
!
1
!
0
r
q
t
!
5
!
4
!
2
o
i
w
e
y
u
0.5 - 1mm
!
6