SERVICE MANUAL
Date:
2011/09/23
Page:
32/39
Model:
K65&K85
SEC. 12
Adjustment of thread tension
Adjustment of needle thread tension is explained below.
1. Remove face and front covers.
2. Pull out outer dial (a) on needle thread tension mechanism.
Remove star-shaped plate spring (c) on inner dial (b).
3. Pull out the inner dial (b) and turn adjustment nut (d) to adjust tension at approximately
60 g using span polyester thread No. 60 and tension gauge.
a
b
c
d
