Reliable MSK-8900M - Manual (Page 13)

24 24
26 26
<-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)
25 25
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