Pfaff 4874 - Chain Looper: Angular Position - Clearance - Orbital Timing - Clearance of Chain Needles Guard

12a
CHAIN LOOPER : ANGULAR POSITION - CLEARANCE - ORBITAL
TIMING - CLEARANCE OF CHAIN NEEDLES GUARD
1.5~1.8mm
a
c
Fig.1
d
e
L2
L0
Fig.2
1.0mm
Fig.5Fig.4
e
0~0.05mm
Fig.3
0.05~0.1mm
Motion
L2
0.05~0.1mm
L0