Setting Range Of The Sewing Foot Stroke Adjustment - DURKOPP ADLER 767 Service Instructions Manual

7.1.2

Setting range of the sewing foot stroke adjustment

1
5
2
Caution: Danger of injury !
Switch off main switch.
Check and adjust setting range of sewing foot stroke adjustment only
when sewing machine is switched off.
Standard checking
If the setting wheel 5 for the sewing foot stroke adjustment is in position
"min.", the minimum sewing foot stroke of 1 mm or 1.6 mm respectively
must be effective.
–
Turn setting wheel in setting position "min.".
–
Turn handwheel and measure sewing foot stroke.
Correction
–
Screw off arm cover.
–
Screw off safety stop 2.
–
Loosen fastening screw 4 of stop sheet 3.
–
Adjust stop sheet 3.
Stroke adjustment range 1 to 6 mm
Press stop sheet 3 upwards as far as it will go.
Stroke adjustment range 1.6 to 7 mm
Press stop sheet 3 downwards as far as it will go.
–
Tighten clamping screw 4.
–
Screw on safety stop 2.
ATTENTION !
The safety stop 2 avoids that - when operating without arm
cover - the joint, which is no longer locked, is pulled out of the bearing.
Never run the sewing machine without safety stop 2.
–
The oil wick 1 must be in the lubrication groove of the stroke
eccentric.
ATTENTION !
After a correction of the setting range of the sewing foot stroke
adjustment the feeding motion of the feed-dog has to be checked
and corrected, if necessary.
3 4
GB
27