Pfaff coverlock 4872

51
Setting the looper thread guides
26. Setting the looper thread guide of the lower and upper overedge loopers
Requirement:
When the looper thread guide 33 is at its highest position, it must have a clearance of 47.3 mm to the
bedplate (fig. 47).
Check:
● Turn the handwheel in the normal direction until the looper thread guide 33 is at its highest position.
● Mount the adjustment gauge.
● Carry out a visual check.
Setting:
● Turn the handwheel in the normal direction until the looper thread guide 33 is at its highest position.
● Loosen the screw 34.
● Move the looper thread guide 33 until the clearance of 47.3 mm is set.
● Tighten the screw 34.
Test:
● As described under “Requirement”.
● The lateral clearance of the looper thread guide 33 to the housing should be 5.0 mm