Pfaff 438 Series User Manual

12
12.1
Setting;
Bottom feed lifting motion
On Cl. 418 and 438
When the stitch length is set at "0" and the needle bar is positioned 1.0 mm beyond its
t.d.c. (pin in hole 4) the feed dog must be at its td.c.
12.0.1
Adjustment:
12.1.1
Set the stitch length at "0".
.2 Loosen screws 1 in feed liftingeccentric 2.
.3 Turn the balance wheel until the needle bar is positioned 1.0 mm beyond its t.d.c.
.4 Insert the cylindricalpin in hole "4" of the bearing plate(to block the machine).
.5 Tomake iteasiertorecognise the dead centre positioninserta screwdriverinthe slotof lifting
crank 3.
.6 Turn feed lifting eccentric 2 on Its shaft until the screwdriver In feed lifting shaft
crank 3 is at its b.d.c. (see arrow in Rg. 12.0.1.).
.7 In this position, making sure that feed lifting eccentric 2 does not move along the shaft,
tighten the accessible screw 1.
.8 Remove the cylindrical pinfrom the hole ofthe bearing plate.
.9 Tighten the second screw 1.
.10
Check this adjustment (see "Setting").
21
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