
GHE-1207 Service Manual
15
13. Adjust starting point
Check
:
(1) Power of machine is turned on.
(2) Stepping motor will senses the start point when needle position is tuned to Upper or lower.
Problem 1:
Stepping motor
does ’t
have motion to sense the starting point or starting point is off standard position.
Solution:
Change PC-2 (11K23M) Main circuit board or Stepping Motors (128082)
Problem 2:
Pattern is sewn differently from standard.
The pattern is shown different from standard after sewing as below similar situation
Ex 1.
Pattern No. 082 is sewn as left standard diagram.
When is wider
a. Use Philip screwdriver to loosen screw (A)
b. Adjust screw (B) by count-clockwise
c. Tighten screw (A) before test
d. Secure screw (A) well if sewing test is ok.
When is closer
a. Use Philip screwdriver to loosen screw (A)
b. Adjust screw (B) by clockwise
c. Tighten screw (A) before test
d. Secure screw (A) well if sewing test is ok.
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