4

Maintenance

4.1

Machine Head Cleaning

4.2

Lubrication

4.3

Safety

Inspection

Clean the machine periodically with a soft and dry cloth to remove the excess of dust on the machine head. Do not use any kind of lacquer thinner to wipe the surface.

If the machine was idle for a long time, lubricate the machine according to the instructions of topics

3.4to 3.6.

Check periodically if all safety devices are properly installed and ad- justed.

Check if all fixing and supporting screws of the machine head are adequately tighten.

Check if the v-belt is not excessively worn and if it has the right tension.

Check if there is no overheating in the electrical motor and check if the power cord and plug are not dama- ged.

High Speed Straight Lockstitch Sewing Machine Instruction Manual and Parts List 21