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Adjustment
15
Functional check of bobbin thread monitor
.10
O Insert the bobbin into the bobbin case and insert the bobbin case into the hook.
O Switch the machine on.
O Call up function "TM" from the service menu, see chapter 15.14 Service menu
O Remove the thread by hand and check the rule.
O Increase or decrease the transmission power if necessary using the corresponding
Tx
O Switch the machine off.
34
Rule
The value under "Rx" must switch between "ON" and "OFF" when the thread is drawn
off (perfect transmission of the bobbin thread sensor receiving signal).
Fig. 15 - 26
+/- key.
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