Happy HCS2-1201-30, Maintenance Manual

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16 6
6-2-2 Trouble shooting (Thread break)
Trouble Factor Cause of trouble and measure
Page
Thread break Operator 10. Is frame used to suit pattern size?
10-1 Use frame to suit pattern size.
11. When you dispose of thread (thread remains around rotary hook),
didn't you damage rotary hook, needle plate with scissors?
11-1 Tell to dispose of thread carefully.
11-2 Open needle plate to dispose of thread.
12. Didn't you neglect cleaning and oiling?
12-1 Tell to always clean and use cleanly. (23-2)
12-2 Tell to oil regularly.
Thread & 1. Is thread used to suit needle size?
cloth 1-1 Use thread to suit needle size.
3-1-4
2. Is thread used to suit embroidery? (thread twist, tender thread). 3-1-3
2-1 Don't use too strongly twisted thread.
2-2 Twist of thread is to be left-wise.
2-3 Use tender thread.
2-4 Don't use thread with knot or uneven size.
3. Is thread properly wound aginst cone?
3-1 Use thread to be wound smoothly.
4. Isn't tip of cone warped or isn't thread caught in scratch?
4-1 Remove warp and scratch.
5. Don't use thread left for a long period? (inferior thread).
5-1 Don't buy thread more than you use.
5-2 Tell not to store thread for a long period.
5-3 Tell how to store. (direct sunshine. humidity dust etc.)
6. Isn't poor unwoven cloth used? Is number of sheets used proper?
Environment
1. Is strength of table and floor enough? (2-4)
1-1 Reconsider place to install the machine.
1-2 Move the machine to place where floor is strong enough.
1-3 Use table with strength endurable against vibration.
2 Are room temperature and humidity proper against thread?
2-1 It is desirable to install air conditioner to keep temperature and humidity
in a certain level.
3. Doesn't embroidery machine receive direct sunlight? (cause of inferior thread)
3-1 See not to expose to sunlight (spread curtain)
(2-5)
( ) ---Reference instruction book