Bernina dcet 2500 - Manual (Page 16)

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1999 BERNINA of America page 16
The Care and Feeding of Your BERNINA  Serger
Cleaning and Oiling
Instruction Manual pg.___
• Clip all threads at the Thread Guide Support.
• Lift the Presser Foot to release (open) the Thread Tension Disks.
• Gently pull the threads from the serger. Always remove the threads in the
direction of sewing. If you encounter any resistance, stop and rotate the
Handwheel slightly to release the threads from around the Loopers.
• Open the Looper Cover.
• Rotate the Upper Knife up.
• Using a Vacuum Cleaner Adapter or a 1” Cosmetic Brush, remove all lint and
fluff from the Looper, Knife and Feed Dog areas of the machine.
• Following the Oiling Guide inside the Looper Cover, place a drop of oil on each
of the two Oiling Points.
• Remove old Needles and replace them with new Needles.
• Rotate the Upper Knife down into the Cutting Position.
Replacing the Knifes
Instruction Manual pg.___
! Serger Knives cut fabric as it is stitched. Just as shears can become dull
through repeated use, serger Knives are also dulled as they cut fabric.
! If the Knives begin to “chew” instead of cut, consider replacing the Lower
Knife.
! If you sew over pins and cut them or run into them with the serger Knives,
both Knives should be replaced.
! Your Authorized BERNINA  Technician will need to replace the Upper Knife
for you.