Tension Release Cam - Pfaff 3339 Instruction Manual

Adjustment
11.

Tension release cam

20
11 - 26
Requirement
At the first stitch and with the take up lever at its b.d.c. the lower thread tension must be
closed.
Fig. 11 - 25
Turn the V-belt wheel in its direction of rotation until the take up lever is at its b.d.c.
Loosen screws 1 and move the tension release cam 2 down as far as possible.
Push the tension release cam 2 back as far as possible so that it is touching the feeling
lever and tighten screws 1.
Continue turning the V-belt wheel until the machine is in program end position and the
take up lever is at its t.d.c.
2
1