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17. Additional function for the standard sewing machine
17-1. Low tension sewing (AT low output mode)
Along with the development of the SD-29, functions have been added to the standard sewing machine as
described below. (Software for the standard sewing machine will be modified)
※
In order to ensure stable sewing with a low tension applied to the thread, the thread tension con-
troller unit of this sewing machine is provided with a felt spacer and a tension disk release spring
instead of those for the standard sewing machine at the time of shipment.
The needle thread tension for the LZ-2290CF can be set to a lower value and can be more finely set (micro
adjustment) as compared with the previous models.
* For the LZ-2290CF/X73257, the AT low output mode has been factory-set to enable (set value 1) as
standard at the time of shipment.
* For the LZ-2290CF/X73258, the needle thread tension is minimized when the set value is "10".
(For the set values 9 or less, the AT solenoid will be placed in the OFF state. In this case, the needle
thread tension by the tension disk part will not be applied to the needle thread.)
If the memory switch "U136 AT low output mode"
is set to "Enable (set value 1)", the needle thread
tension can be finely set in the low output state.
If you want to use the sewing machine in the high-
er thread tension zone, set the U136 to "Disable
(set value 0)". In this case, the needle thread
tension can be set to a higher output value.
[ U136 AT low output mode ]
0 : Disable
1 : Enable
Low output mode OFF (standard mode)
Low output mode ON
While the sewing machine is placed under the AT low output mode, the needle thread tension setting button
displayed on the screen changes from "
" to "
" .