Page 32
HQ Sweet Sixteen Service Manual
10. Adjusting the Needle Height
Tools required: (#3 Fillister screwdriver)
Note:
This adjustment must be completed
with the front
frame cover on.
Important note: Shown with cover off
for illustration purposes only!
Check:
The needle height must be set so that when viewed
from behind as shown, and with the hook point fl ush
with the right side of the needle, the bottom of the hook
point should be 1.0 mm above the top of the needle eye, as
shown in
Figure 10.1
.
If a correction is necessary:
• Lower the needle bar to its lowest position.
• Insert a screwdriver through the access hole
(Figure 10.2).
• Hold the needle bar with your other hand to provide
resistance against the adjustment, so the needle bar will
not fall down out of the driver.
• Loosen the screw slightly so that the needle bar can be
wiggled up or down to the correct position.
• Ensure that the needle-bar thread guide is straight
towards the front of the machine (the position where the
user stands to use the front handle bar)
(Figure 10.3)
.
• If correction is necessary, slightly loosen the needle bar
driver screw (Shown in Fig 10.4 on next page) while hold-
ing the needle bar with the other hand. Rotate radially
until the hole is at front and re-tighten the driver screw
fi rmly.
Figure 10.1
1.0 mm
Figure 10.2
Access hole
Figure 10.3
Thread guide hole to front
Needle Bar Driver Screw