Brother BES-962BC - Manual (Page 235)

Chapter 10 Adjustment
BES-962BC • BES-1262BC 233
1. Dismount the pulley cover and turn the pulley B
q
until the pulley scale indicates 180˚ and
the needle bar is set at the lowest position. (The pulley B " " mark and the stop mark " "
are aligned.)
2. Insert the positioning bar
w
into the hole of the pulley B
q
and fix the drive shaft.
Note) Turn the pulley B securely in the clockwise direction to eliminate a backlash.
3. Loosen Needle bar guide bracket set screw
e
and the bolt
u
of the top dead center stopper
t
when the needle tip is positioned 10.8 mm above the center of the rotary hook shaft.
Adjust the position of the needle bar thread guide so that the set screw
r
on it is turned to
the right by 25 ~ 30˚. Tighten Needle bar guide bracket set screw
e
securely.
Note) When tightening the needle bar clamp set screw
e
, the hole in the needle bar guide should face the front.
4. After adjustment is finished, remove the positioning bar
w
.
5. Set the needle bar at the highest position (where the pulley B indication mark " " and the
cover indication mark " " are aligned). Lightly press the top dead center stopper
t
toward
the cushion rubber
y
, and tighten Socket head bolt for top dead center stopper
u
while
pressing down the needle bar clamp so that it faces the front. (Tightening torque: 0.78 N.m)
Note) • Make sure that the top dead center stopper does not hit the needle bar guide rail i at this time.