11
M
M
M
M
M
M
M
M
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
【
9
】
ADJUSTING OF FEED MECHANISM
9999----1 Position of motor shaft lever
1 Position of motor shaft lever
1 Position of motor shaft lever
1 Position of motor shaft lever
Disassemble the motor cover (B) by loosing of 7
pieces of the screw (A). Align the mark (E) on the
motor shaft lever (D) to the mark (G) on the motor
mounting plate (F). Adjust and fasten the bolt (H)
to set the clearance at 1mm with parallel position
between the connecting plate (C) and the motor
mounting plate (F). To make this adjustment
easily, the side surface (N) of the motor shaft lever
(D) shall be aligned to the side surface (L) of motor
shaft.
Refer to below fig.
9999----2222 Adjusting of motor spring
Adjusting of motor spring
Adjusting of motor spring
Adjusting of motor spring
The length of motor spring ( I ) is about 25mm.
Adjust the length by the bolt (J) and nut (K).
9999----3333 Adjusting of feed dog height
Adjusting of feed dog height
Adjusting of feed dog height
Adjusting of feed dog height
When the motor shaft lever is positioned at 9-1. The feed dog teeth (C) and (D) should be
positioned at 0.5mm lower than the top surface of the needle plate.
Normally, adjust the height by screw (E) and (F). The eccentric pin (H) should be used
when the precise-adjustment is needed. Normally, the driver-groove of the eccentric pin
(H) is horizontal position. After loosing of the nut (G), turning the pin (H) to the
direction of clockwise, then, the height of the feed dog (C) and (D) is downward. And it is
upward when turning to the counter-clockwise. During this adjustment, be careful not
to interfere the looper (L) against the feed dog (R).
< Note >
When adjusting the position of motor shaft
lever, be careful the position of 2 places of
the flat surface on the motor shaft (M) at
the opposite side. One flat surface should
be positioned to the above-direction.
One more flat surface should be positioned
to the lateral-direction such as below fig.
Adjust and fasten the bolt (H).