2.8
Checking the switch over of the feed clutch
Rule:
The feed clutch should be switched over when it is motionless (i.e.,
when it is in the dead centre point of its pendulum motion). This can be
detected from the rotational direction of the belt pulley (1) in front of
and behind the dead centre point.
1
2
3
4
A
270°
276°
88°
93°
B
0
0
–Set the maximum stitch length.
–Turn the handwheel (A) so that it is positioned at “270” degrees (refer
to Table / A). Push the bartacking lever down. Check if the rotational
direction (B) of the belt pulley (1) corresponds to the direction
specified in the table. Do the same for “276” degrees.
–If the rotational directions do not correspond to those specified in the
table, correct the necessary settings. If the clutch switches over too
soon (on a smaller angle), tentatively loosen the adjusting nut (5) (see
chapter 2.6) and repeat the check. Continue loosening until you locate
the correct position for the nut. If the clutch switches over too late,
tighten the controlling nut (5).
Caution: Risk of Injury!
Turn the main switch off.
Only carry out this adjustment when the machine is turned off.
CAUTION!
Imprecise settings can shorten the lifespan of the machine.
12
B
1
