11
Model 8300
Adjusting Hook Timing
The hook timing is that amount of ascending travel of the needle bar from its lowest
position to where the tip of the rotary hook meets the right side of the needle should be
1.65 to 1.95 mm.
1. Remove the belt cover, bed cover, base cover, base
lid (1) and base lid (2).
2. Remove the presser foot, Needle plate and
Bobbin holder .
3. Lower the needle bar at its lowest position by
turning the handwheel toward you.
4. Raise the needle bar 1.8 mm up from the lowest
position.
5. Loosen the Screws of lower shaft gear, turn the
Lower shaft gear until the tip of rotary hook
meets with the right side of the Needle .
Tighten screw (2 pieces) of the lower shaft
gear.
6. Attach the Bobbin holder, Needle plate, presser foot
and Needle.
7. Attach the base lid (2), base lid (1) base cover, bed
cover and belt cover.
1.65 - 1.95 mm
A
B
A
B
D
D
C
C
C
D
D
E
E
C
Needle
Summary of Contents for 8300 - LEAFLET
Page 1: ...SERVICE MANUAL PARTS LIST MODEL 8300 ...
Page 47: ...PARTS LIST 45 MODEL 8300 1 2 3 4 5 6 7 8 9 11 10 6 8 ...
Page 59: ...PARTS LIST 57 MODEL 8300 1 2 3 4 5 6 7 8 13 10 11 12 13 13 14 15 16 17 17 18 19 20 21 22 13 9 ...
Page 67: ...PARTS LIST 65 MODEL 8300 1 2 3 4 5 6 7 8 8 9 8 10 11 12 13 14 15 16 17 18 19 20 21 ...
Page 69: ...PARTS LIST 67 MODEL 8300 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 16 ...