HappyJapan HCR3-1502, Maintenance Manual

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Trouble Factor Cause of trouble and measure Page
Off-registration Operator 2. Is cloth properly stretched. ( 6-3, 7-6 )
of pattern 2-1 Stretch properly.
3. Is thread tension proper? 2-9
3-1 Observing sewing rhythm, set thread tension properly.
4. Was the machine left for a long time in middle of sewing?
4-1 Try to finish sewing as soon as possible.
Environment
1. Is strength of table and floor enough? 2-1
1-1 Check where to place the machine again.
1-2 Move to where floor is strong enough.
2. No problem in pulse motor driver by low power and voltage (variation)?
2-1 Supply rated voltage. ( 23-1 )
2-2 Use transformer.
2-3 Use stabilizer.
3. Is there no place where noise is generated near the machine?
3-1 Don't use the machine near where noise is generated.
4. Doesn't drive frame hit obstacle?
4-1 Remove obstacle.
Thread & 1. Not using shrinkable cloth? ( 4-3 )
cloth 1-1 Use backing paper (consider number of sheets to use).
2. Isn't breakable cloth is used by thread tightening? ( 4-3 )
2-1 Use backing paper (consider number of sheets to use).
3. Is proper backing paper used? ( 4-3 )
3-1 Use backing paper to match cloth.
4. Isn't cloth (embroidery) too heavy?
4-1 Don't use extremely heavy cloth.
Pattern 1. Pattern data may be destroyed. ( 5-5, 5-6 )
1-1 Read again.
1-2 Let new pattern read.
2. Memory pattern was destroyed.
2-1 Let new pattern read. ( 5-5, 5-6 )
3. No problem in memory media ?
3-1 Initialize and read again.
3-2 Prepare new memory media. ( 5-5 )
( ) ----- Reference instruction book