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23. HEIGHT AND TILT OF THE FEED DOG
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
❸
❹
A
A
B
❼
B
❺
(1) Standard value of the height of the feed dog
Standard feed dog height, when it is lifted to the highest from the top surface of the throat plate, :
9000B- S and 9000B-MA : 0.8 mm
9000B-SH : 1.2 mm
Adjust the feed dog height in accordance with processes and materials.
(Caution) Adjust the directions of the engraved marker dot of feed bar driving shaft ❶ and the engraved
marker dot of feed bar rocker shaft ❸ on the right side (operator side).
(2) Adjusting the height and tilt of the feed dog
Loosen setscrew ❷ in feed bar driving shaft ❶ and setscrew ❹ in feed bar rocker shaft ❸.
1)
Height and tilt of the feed dog will change by turning both shafts ❶ and ❸ with a screwdriver.
2)
For the relation between the rotating direction of each shaft and tilt of feed bar ❻, refer to the figure above.
3)
* Standard delivery state : The engraved marker dot of feed bar rocker shaft ❸ is adjusted to engraved
marker lines ❽ and ❾ of the feed dog of each type and the height of feed dog is adjusted with feed bar
driving shaft ❶.
After the adjustment, securely tighten the setscrews. (Tighten setscrews ❷ and ❹ in the state that shafts
4)
❶ and ❸ are pushed against the handwheel side.)
(Caution)
1. If the tilt of the feed dog is adjusted with one shaft only, the height of the feed dog changes. Be
sure to adjust it with both shafts.
2. Movement position of the feed dog may be shifted depending on the adjusting position of the shaft.
At this time, loosen setscrew ❺ in feed rocker shaft arm ❼ and adjust the movement position.
3. The feed dog may interfere with the thread trimmer unit due to the adjustment of height or tilt of
the feed dog. So, be careful.
b
a
❶
a
❻
b
b
a
Feed dog at
the time of
delivery
❷
Position of en-
graved marker
dot of feed bar
rocker shaft
– 20 –
9000B-
S,9000B-MA :
0.8mm
9000B-SH : 1.2mm
B1613012I00
23614506
(- S, -MA)
(- S)
D1613155W00
11403003, 11062601
(-MA)
(-SH)
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