Driver; Driver Shaft In Sewing Arm Direction - Pfaff 3339 Instruction Manual

Adjustment
11.

Driver

10
11.
10.01

Driver shaft in sewing arm direction

11 - 10
Requirement
A distance of 1.3 mm should exist between the cast housing of the machine arm and the
gear on the driver shaft.
1
5
Fig. 11 - 09
Loosen screws 1 and 2 (2x each).
Bring the needle bar to its t.d.c.
Pull the driver shaft 3 forwards as far as it will go.
Slide the set collar 4 until it rests against the driver shaft bearing and tighten screws 2.
Push the driver shaft back until there is a clearance of 1.3 mm between set collar 4 and
the driver shaft bearing.
Bring set collar 5 to resting position on the driver shaft bearing and tighten screws 1.
Loosen screw 2 a little and press set collar 4 (with light pressure against the front end of
the driver shaft) against the driver shaft bearing in accordance with the requirement.
Tighten screws 2.
The driver shaft must move freely but without any lengthwise play!
4 2
1.3 mm
3