Service Manual
Original issue
May 2014
Page
23／64
Model
XL-420
| 23
Checking
1.
Raise needle to its highest position by turning hand wheel toward you.
2.
Lowering needle threader lever, check and see if hook is inserted into needle hole.
<Instruction>
The pictures above show a back view of the needle bar, threader stopper (B) and
theader lever without unrelated parts.
Fig Left: At the time when needle threader is not used, Knock pin (A) for threading
lever is positioned above stopper (B).
Fig Right: At the time when needle threader is used, Knock pin (A) for threading lever
is positioned on the shelf of stopper (B) so that threading lever is not able to be
lowered but it is only able to rotate. Hock of needle threader will be inserted to the
needle hole at this situation.
The distance between knock pin of needle threader lever and hock (L1) must be
matched with a distance between needle hole and shelf of the needle bar (L2). And
also L1 is not adjustable so that L2 is needed to be adjusted in order to match L1 with
L2. Therefore the position of needle threader stopper (B) is needed to adjust.
SEC.8-1 Needle threader height (1)
B
A
B
A
