Reliable MSK-8900M - Adjustment Procedures; Adjust Thread Take-up Spring

2424
2626
<-3>
0.25~0.34N
<-3>
0.25~0.34N
(25~35gf)(25~35gf)
<-5>
0.29~0.49N
<-5>
0.29~0.49N
(30~50gf)(30~50gf)
2525
9. Correct adjustment
15. Clean the oil dust with cloth
16. While the oil level is lower than the mark of
LOW, please supplement the oil.
Please use sewing oil 18#
If the oil is dirty, uninstall the screw and
replace the fresh sewing oil, also please clean the
dust on the magnet and oil pan .
17. Lift the machine head
18. Confirm the threading sequence of needle
thread;
19. Trial sewing
1. Adjust the thread take-up spring
(1) Adjust the tension of spring (Fig. 26)
The tension standard of thread take-up spring:
model MSK-8900M is 0.245~0.343 N ( 25~35gf ) and
model MSK-8900H is 0.29~0.49 N ( 30~50gf )
a. Press the needle thread and tighten the nut
slightly;
b. Test the tension when the bottoms of spring
and thread guide are at the same height.
c. Turn the screw by a screwdriver to adjust
the tension of thread take-up spring