Janome JUNO E1015 Service Manual page 5

PROBLEM
6. Noisy 1. Backlash between shuttle hook
operation gear and lower shaft gear is
too great.
2. Lower shaft gear is loose.
3. Inappropriate belt tension.
4. Upper shaft gear is loose.
5. Not enough oil.
7. Deformation of 1. Inappropriate zigzag
pattern synchronization.
2. Inappropriate disengagement
of cam follower.
3. Upper thread tension is too
strong.
4. Inappropriate feed balance
BALANCE
CAUSE
3
REMEDY
See mechanical adjustment
"Clearance between needle and
hook (NO. 2)."
Eliminate the looseness.
See mechanical adjustment
"Motor belt tension."
Eliminate the looseness.
Oil all moving parts.
See mechanical adjustment
"Needle swing."
See mechanical adjustment
"disengagement of cam follower."
Adjust upper thread tension
correctly.
See mechanical adjustment
"Feed balance on stretch stitch."
REFERENCE
P. 14
P. 22
P. 11
P. 21
P. 8
P. 19