Knee Lever - Pfaff 521 Instruction Manual

13

Knee lever

.04.13
Requirements
1. The knee lever must exhibit a little play before the roller presser is raised.
2. The lever for the roller presser must drop automatically when the knee lever is pressed
as far as it will go.
3. Bar 1 of the knee lever must be at an angle of approx. 75° to the bedplate.
Fig. 13 - 14
Turn screw 3 (nut 4) in accordance with requirement 3.
Turn screw 5 (nut 6) in accordance with requirement 1.
Adjust bar 1 (screw 2) in accordance with requirement 2.
2
6
5
4
3
Adjustment
1
13 - 15