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Chapter 8 Standard Adjustment
BES-961BC • BES-1261BC
146
Rotary
hook's point
150
200
4.
Adjustment of Timing Between Needle and Rotary Hook
1. Turn the power switch on.
2. Check that the machine pulley B q is at the
stop position (at 100˚ of the scale). If not, turn
the pulley B q until it comes to the stop
position.
3. While the machine is at the stop position (when
the initial screen or halt screen is displayed),
press the while holding down the
STOP
. The
rotary hook of each head turns to a currently
set alignment position for adjustment of the
rotary hook.
4. Turn the pulley B q manually until the
relationship between the needle point and the
rotary hook's point can be easily checked (at
around 140° of the scale).
5. Press the STEP BACK/FWD switch to move
the rotary hook for each head to adjustment.
• STEP BACK
For rotating the rotary hook little by little in
the clockwise direction
• STEP FWD
For rotating the rotary hook little by little in
the counterclockwise direction
Make this adjustment for each machine head
so that the needle and the rotary hook's point
can fit with each other.
140˚
100˚
q