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BAS-311E.311EL.326E.326EL
Chapter 3. Assembly
6. Turn the pulley to align the needle bar with the shuttle
hook. At this time, turn the stepping work clamp con-
necting rod !8 to turn stepping work clamp arm F !1 in
the direction of the arrow and move the stepping link
assy !6 in the direction of the arrow. When the presser
foot is at the lowest position, secure the stepping work
clamp connecting rod !8 to the upper shaft @0 using the
set screw !9.
Adjust the lift stroke of presser foot A to 3-5 mm, and 5-8
mm. When the clearance between the presser bar lifter
e and the presser bar bush q is 0.5 - 1 mm, tighten the
bolt !4 of stepping work clamp arm R !3. (At this time,
the match mark of stepping work clamp arm F !1 will be
almost aligned with that of arm.)
Note: Make sure that stepping work clamp arm F !0 has
no end play.
7. Secure the needle bar clamp t using the screw so that
when the presser bar w is at the lowest position. The
distance between the bottom of the presser bar w and
the top of the needle plate should be 23 mm. (22 mm for
311EL.)
Attach the presser foot @1 to the presser bar w so that
the top of the presser foot @1 is aligned with the top of
the screw that holds the presser foot @2.
8. Attach the needle @2 to the needle bar @3.
9. Turn the pulley to insert the needle @2 into the hole of the
presser foot @1. Turn the presser bar w so that the
needle @2 is in the center of the hole of the presser foot
@1, and tighten the screw of the needle bar clamp t.
10.Turn the pulley to set the presser bar w at its lowest po-
sition. Adjust the height of the presser foot @1 so that
there is a 0.5 mm clearance from the top of the material
to be sewn.
!1
!6
e
t
q
0.5 - 1mm
!1
@0
!3
!8
!4
!9
w
@1
@2
@3
w
@1
w
@1
0.5mm
V notch
@2
Align