Cloth Camp Pressure - Duerkopp Adler 558 Service Instructions Manual

12. Cloth Clamp Pressure
16
1
2
3
4
5
6
7
8
9
10
Through the spring-mounted clamp frame 2 found under the material
support plate the pressure of the upper cloth clamps is automatically
adjusted to the material thickness.
The pressure of its compensation springs 4 is set at the factory.
Normally it should not be altered.
The clearance between the upper frame piece 3 and the lower frame
piece 4 should be 14.2 mm up to +0.5 mm.
The setting is only possible with clamp frame removed.
The cloth clamp pressure must be set so that even the thinnest
material to be sewn is still securely clamped.
Caution Risk of Injury !
Pull the mains plug before setting.
–
Remove the upper cloth clamps 7 after loosening the mounting
screws 8.
Caution ! Do not lose the spring washers lying inbetween.
–
Loosen the four attachment screws 1.
–
Hold the clamp operating lever in the rear position.
–
Place a 4 mm thick item between the clamp bracket 7 and the
lower cloth clamps.
–
Pull the cClamp operating lever forward to the stop.
–
Tighten the four attachment screws 1 uniformly.
The clamp pressure for a normal setting is made.
–
Screw the upper cloth clamps 7 on again.
Thereby place the spring washers inbetween.
ATTENTION !
The flawless functioning of the clamp closing lever is dependent on the
precise settings of chapters 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this order) must be made.