3
CONDITION
CAUSE
HOW TO FIX
REFERENCE
6. Noisy
1. Backlash between
See mechanical
P.15
operation
Shuttle hook gear and
adjustment “Backlash
lower shaft gear is too
(lower shaft gear).”
great.
2. Lower shaft gear is
Eliminate the looseness.
loose.
3. Inappropriate belt
See mechanical
P.20
tension.
adjustment
“Motor
belt
tension.”
4. Not enough oil
Oil all moving parts.
5. Upper shaft is loose
Eliminate the looseness
7. Deformation
1. Inappropriate feed
See mechanical
P.17
pattern
balance.
adjustment “Stretch
stitch
balance.”
2. Inappropriate zigzag
See mechanical
P.10
synchronization.
adjustment
“Needle
Swing.”
3. Upper thread tension
See mechanical
is too strong.
Adjustment “Top tension.”
8. Improper
1. Buttonhole stitch
See mechanical
P.18, 19
balance is not correct.
adjustment “Buttonhole
stitch
balance.”
Summary of Contents for Jubilee 60507
Page 1: ...SERVICE MANUAL PARTS LIST MODEL Jubilee 60507...
Page 23: ...PARTS LIST MODEL Jubilee 60507...
Page 24: ...PARTS LIST 22 MODEL Jubilee 60507 1 2 4 4 4 3 13 14 15 5 6 4 4 7 8 9 10 11 6 12...
Page 32: ...PARTS LIST 30 MODEL Jubilee 60507 14 11 10 6 7 9 8 5 5 1 3 15 18 12 16 13 11 17 4 2...
Page 38: ...PARTS LIST 36 MODEL Jubilee 60507 7 8 5 9 12 1 2 3 4 6 6 5 10 13 11 11...
Page 40: ...PARTS LIST 38 MODEL Jubilee 60507 1 2 3 4 5 14 7 11 8 9 10 13 12 6 5 16 15 17 18...
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