- 17 -
(6) If the shuttle hook point is not matched with the center line of the needle, loosen the driver (No.9) set
screw (No.10) then, turn the shuttle hook and the driver for the adjustment.
(7) For the needle class DP×5, move the needle bar to the position where the needle bar timing mark D is
matched to the needle bar bushing bottom line then, carry out the same procedure as described
above.
<1>: Needle bar <2>: Needle bar bushing <3>: Cylinder cover <4>: Bobbin case <5>: Shuttle hook
retainer arm <6>: Hook retainer <7>: Shuttle hook <8>: Needle <9>: Driver <10>: Set screw
7-3. Adjustment of the clearance between the shuttle hook and the needle
(1) Take the same procedure described in (1) to (4) of above paragraph 7-2.
(2) Set the clearance between the shuttle hook (No.1) point and the needle (No.2) in 0.05 to 0.1mm,
standard position.
(3) Loosen the shuttle race set screw (No.3) and turn the eccentric pin (No.4) to move the hook entirely
back and forth for adjustment. Adjust the clearance to be standard.
7-4. Adjustment of the clearance between the driver and the needle
(1) Take the same procedure as above paragraph 7-3. from (1) to (4).
(2) Check the clearance between the shuttle hook point and the needle has been adjusted in 0.05 to
0.1mm.
(3) Loosen the lower shaft bushing screw (No.1) and turn the eccentric pin (No.2) so that the lower shaft
C
D
<1>
<3>
<9>
<5>
<4>
<10>
<7>
<8>
<6>
C : For the needle class DP X 17
D : For the needle class DP X 5
<2>
0.05~0.1mm
<1>
<3>
<2>
<5>
<4>
<1>: Shuttle hook
<2>: Needle
<3>: Shuttle race set screw
<4>: Eccentric pin
<5>: Cylinder cover
