10-4. Removal of the fixed knife and the movable knife; 10. Adjustments- Page 40

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BAS-761

10-4. Removal of the fixed knife and the movable knife

Note:

Turn off the power switch.

■

 Removal of the fixed knife

1.

Remove flat-head screws 

q

 and then needle plate RR 

w

 and needle plate RL 

e

.

2.

Remove clamping screws 

r

 and then tilt the machine head.

NOTE:

At this time, adjust the position of the machine head so that it is aligned with the notch in the bellows rail.

3.

Remove clamping bolt 

t

 and then bobbin case holder position bracket 

y

.

4.

Remove flat-head screw 

u

 and then fixed knife 

i

.

¡

When the fixed knife 

i

 becomes blunt, sharpen it as illustrated at right.

■

 Removal of the movable knife

w

y

q

r

1.

Remove flat-head screws 

q

 and then needle plate RR 

w

.

2.

Remove clamping screw 

e

 and then presser foot assembly 

r

.

3.

Turn the pulley and stop the needle bar at its highest position.

4.

Remove screw 

t

 and then needle 

y

.

5.

Push thread trimming rod 

t

 in the arrowed direction and stop where flat-head screws 

y

 can be seen.

6.

Remove flat-head screws 

y

 and then movable knife 

u

.

Note:

To reassemble, reverse the above procedures.

e

u

10. Adjustments

t

t

y

i

r

u

r

e

q

w

 Belows rail

 Notch

t

y