Janome 1600P PROFESSIONAL -, Руководство по обслуживанию

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11. Check Spring Stroke
The amount of the needle thread supplied by the check
spring should be 11 - 15 mm.
[1] Thread the machine up to the thread guide (1) and
lower the presser foot.
Lower the needle bar to the lowest position.
[2] Hold the thread end and mark the point (2) on the
thread beside the thread guide.
NOTE:
There should be no slack in the thread.
[3] Pull the thread gently to the left until it stops {the
check spring (3) travels full stroke}.
[4] Measure the length of thread drawn out.
(Use the markings on the Gauge 767G-001 for 11 mm
and 15 mm).
[5] Loosen the setscrew (4) and move the tension dial
guide (5) to adjust the stroke.
- If the length is too long, turn the guide in the direc-
tion A .
- If the length is too short, turn the guide in the direc-
tion B .
[6] Tighten the setscrew (4).
(1)
(2)
(3)
(5)
(4)
(1)
(4)
A
B
11 - 15 mm
12. Pre-tension Dial
The standard position of the pretension dial is as follows:
1600P and 1600P-DBX:
The screw head (1) sinks 4 mm below the dial face.
(Use the marking on the Gauge 767G-001 for 4 mm).
1600P-DB:
The screw head (1) is level with the dial face.
(1)
(2)
4 mm
Level
1600P and 1600P-DBX
1600P-DB
11 mm
15 mm
4 mm