Brother International BES-916AC Instruction Manual - English - Page 135

of the needle bar clamp, then move the needle bar up and down until

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Chapter 8 Adjustment 1. Turn the pulley q until the scale of pulley q indicates 180° (where the pulley indication mark " " and the stop mark " " are aligned) and the needle bar is set at the lowest position. 2. Insert the positioning bar w into the hole of the pulley q and fix the upper shaft. Note) Turn the pulley securely in the clockwise direction. 3. Insert the bottom dead center gauge e into the rotary hook r. 4. Loosen the screw y of the needle bar clamp t, then move the needle bar up and down until the needle tip touches the gauge e lightly. Note) • The needle point should touch the gauge at a place other than the cutting section. • The bottom dead center gauge should be set in or removed from the rotary hook with its cutting section facing upward. 5. Tighten the screw y of the needle bar clamp t securely. 6. After adjustment is finished, remove the positioning bar w. 7. Set the needle bar at the highest position (where the pulley indication mark " " and the cover indication mark " " are aligned). Lightly press the top dead center stopper u toward the cushion rubber i, and tighten Socket head bolt for top dead center stopper o while pressing down the needle bar clamp so that it faces the front. Note) Make sure that the top dead center stopper u does not hit the needle bar guide rail !0 at this time. BES-916AC • BES-1216AC 133

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Chapter 8
Adjustment
BES-916AC • BES-1216AC
133
1.
Turn the pulley
q
until the scale of pulley
q
indicates 180
°
(where the pulley indication mark
"
" and the stop mark "
" are aligned) and the needle bar is set at the lowest position.
2.
Insert the positioning bar
w
into the hole of the pulley
q
and fix the upper shaft.
Note)
Turn the pulley securely in the clockwise direction.
3.
Insert the bottom dead center gauge
e
into the rotary hook
r
.
4.
Loosen the screw
y
of the needle bar clamp
t
, then move the needle bar up and down until
the needle tip touches the gauge
e
lightly.
Note)
•
The needle point should touch the gauge at a place other than the cutting section.
•
The bottom dead center gauge should be set in or removed from the rotary hook with its cutting section
facing upward.
5.
Tighten the screw
y
of the needle bar clamp
t
securely.
6.
After adjustment is finished, remove the positioning bar
w
.
7.
Set the needle bar at the highest position (where the pulley indication mark "
" and the
cover indication mark "
" are aligned).
Lightly press the top dead center stopper
u
toward
the cushion rubber
i
, and tighten Socket head bolt for top dead center stopper
o
while
pressing down the needle bar clamp so that it faces the front.
Note)
Make sure that the top dead center stopper
u
does not hit the needle bar guide rail
!
0
at this time.