Duerkopp Adler 271 Gebruiksaanwijzing - Pagina 16

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4. Maintenance

4.1 Cleaning and Checking

Note

With a correct regulator setting the thread controller

spring 5 will be pulled approx. 0.5 mm down out of its

upper end position when the thread loop passes the

maximum hook girth, that is, when the greatest amount of

thread is required. See illustration.

The dimension 0.5 mm is a guideline. It can be greater or

smaller depending on the thread controller spring tension.

- Risk of Injury -

During cleaning and lubrication of the machine it is

essential to turn the main switch off.

The maintenance work must be conducted at the latest

after the number of operating hours shown in brackets ( ).

Other maintenance intervals may result when working

special materials.

A machine kept clean protects against malfunctions!

–

Remove sewing dust from under the needle plate.

(8 hours)

This is best done with a compressed air pistol.

–

Remove the sewing dust collecting between the

transporter web. (8 hours)

Remove the needle plate for this.

–

Clean the area below the bobbin brake spring 3 of

sewing dust. (8 hours)

Slightly raise the spring 3 e.g. with a needle leicht

and blow out.

–

Clean the sewing dust from the motor ventilation

sieve. (8 hours)

–

If the machine is equipped with the compressed air

maintenance unit 5 check the oil and water levels.