10
MC 9500
Adjusting Hook Timing
When the pattern No.2 is selected, the amount of ascending travel of the needle bar from its
lowest position to the position where the tip of the rotary hook exactly meets the right side
of the needle should be 3.25 to 3.55 mm.
1 Remove the belt cover, bed cover, base cover, base lid
(1) and base lid (2).
2 Turn the power switch “ON” and select the pattern
No.2.
3 Press the “ADJUST” key and set the zigzag width at
“0” by manual adjustment, then turn the power switch
“OFF”.
4 Remove the presser foot, needle plate and bobbin
holder.
5 Lower the needle to its lowest position by
turning the handwheel toward you.
6 In this condition, if the convex of the feed lifting cam
is in the lowest position, loosen screws of the
lower shaft gear (G) .
If not, loosen screws (2 pieces) of the lower shaft
timing gear .
7 Raise the needle bar further 3.4 mm from the
lowest position .
8 Turn the lower shaft gear until the tip of rotary
hook meets with the right side of the needle .
Tighten the screws of the lower shaft gear or the lower
shaft timing gear , .
9 Reattach the bobbin holder, needle plate and presser
foot.
10 Reattach the base lid, base lid (1) base cover, bed
cover and belt cover.
2
6
3
7
1
6
5
4
9
8
9
1
5
6
3
5
4
7
1
3
6
8
Lowest needle position
Convex of feed lifting cam
Lower shaft gear (G)
Lower shaft timing gear
Screws (2 pieces)
Screw (F)
3.25 to 3.55 mm
The tip of rotary hook meets with the right side of
the needle.
Needle #14
7
6
8
9
2
1
3
4
5
6
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