3. ASSEMBLY
HE-800A
70
13.Install the upper thread trimmer lever set (34) to the upper thread trimmer fulcrum shaft (1) with the washer
(35) and the two shoulder screws (36).
14.Place the roller (37) onto the support stud (13), and then place it into the groove in the presser roller bracket
(38).
15.Pass the longitudinal feed arm pin (19) through the upper thread trimmer lever set (34), and provisionally install
the longitudinal feed arm assembly (39) to the trimmer driving lever (41) with the bolt (40).
16.Provisionally install the trimmer driving arm assembly (42) to the trimmer driving lever (44) with the bolt (43).
17.Turn on the power, and after the mechanism moves to the home position, press the RESET key to lower the
work clamp.
18.Tighten the bolt (40) so that the slot of the upper thread trimmer lever set (34) and the edge of the washer (35)
are aligned.
19.Tighten the bolt (43) so that the stop plate (9) and the stopper (30) are in the positions shown in the illustration.
20.Attach the larger hooks of the two springs (45) to the pins (46) on the arm, and the smaller hooks to the upper
thread trimmer lever set (34).
21.Install the upper thread trimmer assembly (47) to the upper thread trimmer lever set (34) with the screw (48),
spring washer (49) and plain washer (50).
4257Q
4256Q
4259Q
4258Q
Apply grease to (36) and(37)
Aligned
Approx. 1mm
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