Adjusting The Top Covering Thread Trimmer Mechanism - JUKI MF-7900 Series Engineer's Manual
High-speed, cylinder-bed top and bottom coverstitch machine
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Also See for MF-7900 Series:
- Instruction manual (30 pages) ,
- Specification (8 pages) ,
- Quick start manual (2 pages)
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(4) Adjusting the top covering thread trimmer mechanism
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest. In addition, cut
the air supply from air compressor.
1. Adjusting the engagement of knives
2. Adjusting the pressure of clamp spring
3. Adjusting the position of the blade point of moving knife
❽
0.5 mm
❶
❸
❷
4. Adjusting the speed of moving knife
Standard adjustment
❹
❺
❼
❻
❷
❾
Fig. A
– 90 –
❾
❷
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