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1 When “ ER 06 ” appears on the P/U Screen.
2 When “ ER 61, 130 ” appears on the P/U Screen.
3 When “ ER 66 ” appears on the P/U Screen.
4 When “ ER 128 ” appears on the P/U Screen.
5 When “ ER 129 ” appears on the P/U Screen.
6 Even after the Sewing Machine is stopped, it advances a stitch more.
7 When the Sewing Machine malfunctions due to unskilled program operation.
8 When the Rotary Hook Timing is to be readjusted.
9

When the Solenoid (Thread Release Lever, BT, WP, PF, TT) does not work.
10

When the Needle is trembled and struck during sewing.
11

When the machine is not working or speed is not changed by pedal.