– 73 –
In regard to adjustments of the bobbin winder amount and winder
imbalance, refer to the relevant instruction manual.
In this manual, descriptions are provided in regard to problems of winder
shaft revolution errors.
1. Replacement of the bobbin friction wheel
(1) Remove three bobbin winder unit setscrews .
(2) Take out the bobbin winder unit .
(3) Confirm if there is extreme wearing out in the rubber section of the
bobbin winder friction wheel .
If the amount of wearing out seems to be too much, replace the
worn-out section with a new one.
2. Adjustment of the bobbin winder driver wheel position
(1) Remove the window plate (including the AK unit) from the rear side
of the arm.
(2) Loosen the bobbin winder driver wheel setscrews (2 pcs.) of the
bobbin winder driver wheel .
(3) Mount the bobbin winder unit on the arm.
(4) Turn ON the bobbin winder lever and let the head coincide
with the bobbin winder lever .
At that time, the head of the bobbin winder unit setscrew shall be
made to coincide with the bobbin winder lever .
(5) Lightly make the bobbin winder driver wheel lightly contact with
the bobbin winder friction wheel and tighten two bobbin winder
driver wheel setscrews .
(Cautions) 1. When the bobbin winder lever is turned OFF, turn
the hand wheel by hand and confirm that the bobbin
winder shaft does not turn.
2. Never apply grease or such an oily component to
the rubber section of the bobbin winder friction
wheel . Otherwise, this can be a cause of friction.
o If the hand wheel is turned in the
state of OFF, this can be a cause
of abnormal abrasion.
Adjustment Procedure Results of Improper Adjustment
Bobbin winder friction wheel
Part No. 26261503
To Next Page
Loading...
Need help?
General
