Mitsubishi Electric PLK-G5050R Technical Manual page 32

(1) Loosen 2 set screws (No.9) of the thread trimmer cam (No.8).Remove the slide plate and place the
4mm thickness gauge (No.10) on the top of sewing machine bed. Slide the gauge (No.11) in between
the needle bar and the 4mm thickness gauge (No.10). Use the 26.2mm part of T side.
(2) Make the air cylinder activated condition, then turn the thread trimmer cam (No.8) in the arrow B
direction by hand. Fix the thread trimmer cam (No.8) with the two set screws (No.9) at the point where
the thread trimmer cam (No.8) contacts with the cam follower (No.13).
26.2mm
<13>
<9>
(3) Make sure that the clearance between the thread
trimmer cam (No.8) right end and the cam follower
(No.13) left end is 0.5mm to 1.0mm when the cam
follower crank 2 (No.1) is returned to the C arrow
direction after the air cylinder is set back to the original
condition. This is the standard condition.
<11>
4mm
<13>
<8>
B
<1>
<8>
- 26 -
<10>
<13>
<9>
C
<8> <1>
0.5～1.0mm