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Chapter 8 Appendix
8
Inside the rotary hook
1.
Use the brush to clean away any dust or waste thread that
may have accumulated inside the rotary hook.
Inside the bobbin case
1.
Use the brush to clean away any dust or waste thread that may have accumulated
inside the bobbin case.
Tension base
1.
Use the brush to clean away any dust or waste thread
from places where the upper thread passes.
8.2.2 Lubrication
The places shown below must be oiled on a routine basis.
Places to oil
Frequency
Supplied accessories used
Rotary hook race
With each use
Oil
All needle bars and felt inside
needle bar case
Once a week
Flat head screwdriver (2.5 × 75)
Oil
Moving parts in arm
Once a year
Phillips screwdriver (6 × 100)
Oil
Caution
Switch power off before beginning the task.
For lubrication, use either the supplied oil (TF) or commercially available sewing machine oil. Use of
any other oil may lead to malfunction.
Do not apply too much oil. When there is too much oil, it can splatter and get the fabric or thread
dirty and cause stains. If too much oil has been applied, use a cloth or the like to wipe it away.
