Pfaff 938 Manual

A SERVICE OF

next previous

Adjustment

12 - 5

Fig. 12 - 04

6

5

4

3

1

● Bring the needle bar to tdc (hole 2).

● Loosen screws

1,2

and nut

3

.

● The largest eccentricity of pin

4

must be facing downwards.

● Bring the groove on guide bar

5

into a position in which it rests against eccentric pin

4

,

turn eccentric pin

4

in accordance with the

requirement

and tighten nut

3

.

● Push guide bar

5

downwards and then upwards as far as possible. Bushing

6

must not

move laterally during this movement (readjust eccentric pin

4

if necessary).

● Move guide bar

5

until it rests against eccentric pin

4

and tighten screws

1

and

2

.

12.05.03 Parallel guiding of the needle bar

Requirement

Guide bar

5

must be parallel to the needle bar.

81-018

81-019

4

2

5

1

3

2