Pfaff 438 Series User Manual

6
Setting:
Adjustment:
.1
.2
.3
.4
.5
.6
.7
.8
Adjusting the needle throw
When the needle bar rises from the bottom position on the right of its throw to t.d.c. (pin
in hole 2) it must not move to the side when the stitch width lever is moved to and fro.
coAmm
6.0.1
Loosen screws 1 of zigzag eccentric 2 just enough to allowthe eccentric to be turned on
its shaft against strong resistance.
Bring the needle bar from the bottom position on the right of its throw to t.d.c.
Insert cylindrical pin in hole "2" of the bearing plate (to block the machine).
Move eccentric 2 sidewayson its shaft untilthere is a clearance ofabout 5 mm betweenit
and the right wall of the casting. (See Fig. 8.0.1.).
Turn eccentric 2 on its shaft until the needle bar stops vibrating when the stitch
width lever is moved to and fro.
Check this adjustment (see "Setting").
Remove cylindrical pin from hole "2"of the bearing plate.
Screws 1 are still loose.
13
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

Pfaff 438 Series Specifications

General

Brand	Pfaff
Model	438 Series
Category	Sewing Machine
Language	English