Service Manual
Original issue
May 2014
Page
28／64
Model
XL-420
| 28
9.
If twin thread guide (H) is located much higher or lower than hook portion,
needle is not threaded.
After checking hook position, adjust position of outer pipe (J) so that there may
be a clearance
0.4 to 0.6 mm
between screw (K) and bottom of long hole.
0.4 to 0.6mm
Position of twin thread guide and hook is shown below with threading lever lowered.
Thread guide is locates too low.
It is located correctly.
It is located too high.
Hook
0.4 to 0.6 mm
K
J
SEC.8-6 Needle threader height (6)
