5-14
5. ADJUSTMENTS
LZ2-B850,B851
1027S
Caution knife
e
1029S
1028S
q
r
r
t
e
w
q
5-18. Adjusting the lubrication amount of the needle bar
Make this adjustment if there is a large amount of oil leaking from around the needle bar, or if needle zigzagging be-
comes more and more sluggish as sewing operation continues.
1. Remove the parts shown in the illustration while making this adjustment.
2. Turn the machine pulley and adjust the position of the needle bar lubrication support
r
so that the projection on the
needle bar connecting rod
q
is slightly touching the wick
e
.
Loosen the two screws
t
to adjust.
Note:
•
If the projection on the needle bar connecting rod
q
is touching the wick
e
too firmly, the amount of oil leaking
around the needle bar will increase.
•
In contrast, if they do not touch at all, needle zigzagging will become more and more sluggish as the sewing
machine continues running, and seizure will result.
