Pfaff coverlock 4872 Service Manual

62
Safety test
31. Microswitch functional test
A functional test of the microswitch is always to be carried out after any repairs.
● Connect the foot control.
● Turn on the master switch.
● Open the looper cover or the swivel plate (fig. 68).
● The electricity supply to the machine is interrupted.
● Activate the foot control.
● The machine must not run during this test.
● Close the looper cover/swivel plate.
Note:
When the looper cover/swivel plate is open, the machine must not start to run.
● When the looper cover or the swivel plate has been closed and the machine does not start to run, the
contact pins must be checked.
● If necessary, the contact holder 42 can be pushed upward slightly until it functions perfectly (fig. 69).

Pfaff coverlock 4872 Specifications

General

Brand	Pfaff
Model	coverlock 4872
Category	Sewing Machine
Language	English