Instruction manual

6.7 Checking the positioning

Needle positions are correctly set prior to delivery, but they should still be checked

before starting the machine.

NB:

The sewing foot must be locked in the up position (see Operating instructions,

section 6.13).

The machine must move to an intermediate halt in position 1 (needle down).

See section 7.1, LED 7.

Position 1

–

Turn on the main switch.

–

Briefly push the pedal forwards and return it to its original position. The needle

moves to position 1 = handwheel point “F”.

–

Check the position of the needle.

Position 2

–

Move the pedal forwards, then fully back.

–

The needle moves to position 2 = handwheel point “C”.

–

Check the position of the needle.

If either or both needle positions are incorrect, they must be corrected:

see section 7.1.5 or 7.2.7.

6.8 Machine-specific parameters

6.8.1 General

The functions of the sewing-drive control are determined by the program and the

parameter settings.

All parameter values for the relevant machine class and subclass are correctly set prior

to delivery. This entails changing some pre-set control values (e.g. the maximum

speed). If the control is replaced, the machine-specific parameters must be restored to

their correct values. See section 7.1.6, 7.2.8 or 7.3.9.

6.8.2 Autoselect

The control “recognises” which machine series is connected by measuring the

Autoselect resistance in the machine. Autoselect selects control functions and the

pre-set parameter values.

Caution: If the control fails to recognise a valid Autoselect resistance (or any at all), the

drive runs only with the so-called emergency operating functions to prevent machine

damage.

6.9 Master reset

A master reset (see section 7.1.7, 7.2.9 or 7.3.10) resets all parameters to their pre-set

values. After a master reset the machine-specific parameters must be restored to their

correct values. See section 7.1.6, 7.2.8 or 7.3.9.