Instruction manual

2.2.2 Position of the lower toothed belt wheel

Caution: Risk of injury!

Tur n off the main switch.

Check and set the position of the lower toothed belt wheel only when

themachineisswitchedoff.

Standard checking

The threaded pins in the toothed belt wheel 2 must sit on the flat spot

1 of the lower shaft 5.

The toothed belt wheel must be positioned in a way that the toothed

belt 4 bears against the belt tensioner ring 3 when the handwheel is

turned but without being dislocated.

–

Check the position of the toothed belt wheel.

Correction

–

Pull out the toothed belt from the lower toothed belt wheel.

–

Loosen the threaded pins in the toothed belt wheel.

–

Tur n the toothed belt wheel 2, until the screws sit on the flat spot

of the lower shaft 5.

–

Tighten the threaded pins in the toothed belt wheel.

–

Mount the toothed belt on the toothed belt wheel.

–

Check the course of the toothed belt.

ATTENTION: Danger of breakage!

After replacing the toothed belt, check the following settings: Hook

adjustment (see chapter 2.6), feeding motion of the feed dog (see

chapter 2.3.4) and lifting motion of the feed dog see chapter 2.3.5).

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