Pfaff 438 Series User Manual

22
22.1
Setting:
Adjustment:
22.1.1
.2
.3
.4
.5
.6
.7
.8
.9
.10
Feed dog height
On Ci. 418 and 438
Withthe stitch set at "0" and the needle bar at a position 1.0 mm beyond td.c. (pinin
hole "4") the feed dog must be centred Inits slots and contactthe gauge throughout Its
entire length (Fig. 22.0.3).
22.0.2
22.0.1
Bringthe needle bar to a position.1.0 mm beyond t.d.c. and insert the pinInhole "4" of
the bearing plate (to block the machine).
Loosen
clamp screws 1 and 2.
Place the gauge under the presser foot so that its recess faces downwards and Its front
edge is flush with the edge of the needle plate.
Lowerthe presser bar lifterto rest the presser foot on the gauge.
Push the feed bar upwards, centre the feed dog inthe needle plate slots and hold itinthis
position.
Tumfeed lifting crank 3 until the feed dog contacts the gauge and tighten damp screw 1
just lightly.
Turn eccentric bushing 5 underfeed rock shaft crank 4 until the feed dog Is in con
tact with the gauge throughoutItsentirelength and tighten clampscrew2lightlytoo.
Tightenclampscrews 1 and 2, makingsure the feed dog iststillincontactwiththe gauge
throughout its entire length.
Raise the presserfoot lifter, removethe gaugefromunder the presserfootand pullthe pin
out of the hole in the bearing plate.
Check this adjustment (see "Setting").
34
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