−42 −
Standard Adjustment
b e
(2) Disassembling/assembling the main shaft
Main shaft front bushing
-Removing procedure of the main shaft-
1. Loosen two setscrews in coupling 7. (Main shaft
side)
2. Remove plunger spring bracket 5, and take out
the plunger and the spring.
3. Loosen two setscrews each in bobbin winder
driving wheel 4 and in thrust collar 8.
4. Refer to page 44 and loosen the timing belt.
5. Remove the timing belt and loosen two
setscrews in sprocket 6.
6. Draw out counterweight 1 in the direction of b
mark.
-Assembling procedure of the main shaft-
1. Insert counterweight 1 in the direction of e mark.
Adjust so that two pieces each of thrust bearing 2
and thrust washer 3 are located in the front and
rear of the main shaft front bushing and there is no
thrust in the main shaft, and fix thrust collar setscrew
8.
2. Make sure that the groove in the plunger is properly
set, and place the plunger and the spring. Then,
attach plunger spring bracket 5.
3. Tighten two setscrews each in coupling 7 and in
sprocket 6.
4. Fix bobbin winder driving wheel 4 as shown on
page 34.
5. Refer to page 44 and stretch the timing belt.
Main shaft intermediate bushing
Timing belt
Main motor
Main motor installing base
1
2
3
4
5
6
7
8
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