Technical information

Assembly instructions

5.6 Attaching the motor

There are three ways of attaching the motor to the sewing machine

1. Attaching directly to the top of the sewing machine

2. Attaching under the machine table

3. Installing in the top of the sewing machine

There are three different ways of transferring the drive torque from the motor to the machine

Options:

- Toothed belts and toothed belt discs

- V-belts and V-belt discs

- direct axial connection of the motor to the machine's main shaft

5.6.1 Using toothed or V-belts

When using toothed belts, the torque is transferred from the motor to the machine without slippage. The

transmission ratio between the motor and the machine is usually 1: 1. In this case, the machine requires no

reference position signal. Variable transmission ratios are possible depending on the ratio of the strap disk to the

hand wheel. However, in this case the machine requires a reference position signal.

When using V-belts, the torque is not transferred from the motor to the machine without slippage. The

transmission ratio between the motor and the machine is variable here. Here the machine requires a reference

position signal.

5.6.2 Attaching the motor under the table

The following parts are needed:

Bracket to hold the motor

V-belt disc for the motor shaft

V-belt disc for the machine shaft

V-belt

Belt guard

Synchroniser if necessary