Brother BAS-342G Service Manual page 82

6. ASSEMBLY
1） Set so that distance F is 4 mm and distance G is 1.5
mm, and then tighten the set screw (24).
2）
Move pulley gear R (J) to the position where the teeth
of pulley gear L (H) and pulley gear R (J) are engaged
at a right angle, and then tighten the two set screws
(21).
Adjust while referring to "6-9. Intermittent
presser foot lifter mechanism (2)".
14. Thread trimmer cam
15. Motor assembly
16. Bolts [4 pcs]
17. Fries wheels [2 pcs]
18. Screws [3 pcs]
19. Set screws [2 pcs]
20. Set screws [2 pcs]
21. Set screws [2 pcs]
22. Set screws [2 pcs]
(Temporarily tighten)
23. Pulley assembly
24. Set screw
73
Spring pin
Upper shaft
Pulley
bush
1418B
Tighten the set screw so that the screw stop A on the
motor shaft is in the same phase as the screw stop B
on the thread trimmer cam.
Tighten the set screw so that the screw stop C on the
upper shaft is at a phase of approximately 180
degrees from the screw stop A on the motor shaft.
Install the motor assembly so that the
harness is facing downward.
1） Align the index mark D on the thread trimmer cam
(14) and the index mark E on the joint assembly, and
then provisionally tighten the set screw at the index
mark side.
2） After tightening the set screw at the screw stop side,
fully tighten the set screw at the index mark side.
3）
Carry out the adjustments in "7-16. Adjusting the
thread trimmer cam position".
Apply the grease <SA8837-001> specified by Brother to
the groove.
BAS-342G
4644Q
1306B
1419B