3
Technical Reference
10.
Remove the four hex screws securing the tension
base. Remove tension base from the machine by
disconnecting the harness at the back and the ground
wire held on by a screw to the tension base mount.
11.
Loosen the top dead center stopper hex screws.
12.
Loosen the needle bar clamp screws.
13.
Pull needle bar up slowly at the top. As you are doing
so, you will need to remove the spring, presser spring
plate holder, needle bar clamp, top dead center
stopper and finally the needle bar cushion. Do not
remove needle bar completely. Pulling the needle bar
up until the bottom of it just passes the rubber cushion
will be enough.
14.
Install new rubber cushion.
15.
Slowly lower needle bar down installing the parts
removed in step 13 in reverse order.
16.
Repeat for all needle bars.
17.
Install the parts listed in steps 7 and 8 for all needles.
Remove
Needle bar clamp
Top dead center stopper
Spring
Presser spring plate holder
Pull needle bar up here
