Reliable MSK-1341B - Manual (Page 10)

23.S a f e t c l utch d evi c e ( F .21)
If the hook blocks the thread when running ,the safety
clutch device will work, which make the lower timing
pulley rotate without load.
1.Restore as following order:
a.clean the thread blocked in the hook;
b.Press the button
and turn the hand wheel at reverse
direction.
2.Adjusting the force of safety clutch:
Turn the screw
clockwise(A direction) to increase
the force, contary, turn the screw counter-clockwise(B
direction)to decrease the force.
①
②
24.R e l o a ding t he t im i n g b e l t(Fig . 2 2 )
1.Unloading the timing belt:
a.Loosen the screw , , , , ;
b.Take the hand wheel and bushing down;
c.Pull the feed lever , outward to make the timing
belt have enough space to pass through;
d.Take down the belt and take it out from the bush lole of
upper shaft.
2.Reloading the timing belt;
a.The loading order of timing belt is the reverse order
of unloading;
b.Adjusting the timing relationship between upper
shaft and lower shaft;
Turn the hand wheel to lift the thread take-up lever to
its highest position, turn the lower shaft to make the first
screw on the collar align with the mark on the
rear bushing of lower shaft,under this condition, install
the belt on the lower timing pulley .
① ② ③ ④ ⑤
⑥ ⑦
⑨
⑧
⑩
①
②
B
A
③
④
⑤
⑥
⑦
⑧
⑨
⑩
①
②