Control Cam To Bobbin Opener And Tripping Lever - Pfaff 1491E1 Instruction Manual

Adjustment
13.

Control cam to bobbin opener and tripping lever

07.02
13 - 35
Requirements
1. Control cam 2 must be touching bearing collar 3.
2. The roller of tripping lever 6 must fall slightly into the path of control cam 2.
4
Fig. 13 - 31
Loosen screws 1 and bring control cam 2 to rest against bearing collar 3.
In this position tighten one of the screws 1 slightly so that control cam 2 can still be
turned.
Loosen screw 4.
Bring the needle bar to BDC and position the straight section of the cam track under the
roller of tripping lever 6.
Activate the engaging lever by hand.
Move tripping lever 6 together with schaft 7 in accordance with requirement 2.
Taking care to ensure that connecting link 5 engages completely in the groove of the
rack, bring connecting link 5 to rest on the right and tighten screw 4.
Only tighten screws 1 slightly for the following adjustment.
7
5
6
2
1
3