6-5 Disassembling and reassembling the knife assembly
The knife assembly is secured with four screws F.
Do not loosen other screws.
Perform preventive maintenance such as replacing
the knife by following the procedures below.
1.
Loosen screw H for front cover G.
Disconnect four air lines I.
2.
Loosen four screws F with the needle plate set
screw.
3.
Loosen screw J and remove pin K.
4.
Loosen screw L. Remove presser foot lift lever L.
Loosen screw M. move puller holder assembly
N.
5.
Remove the needle plate as shown in the
illustration.
6.
Reassemble the knife assembly by following the reverse procedures of the above after
performing preventive maintenance.
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7
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ADJUSTING THE AIR WIPER
The outlet of air wiper C should be positioned
approximately 10mm to the right of the right needle.
Adjustment is made by loosening screw A.
The outlet should be 2~3mm below the eye of the
needle. Adjustment is made by loosening screw B.
The time when the air wiper is blowing is factory-set
at 2 sec. Adjustment can be made by changing the
settings on the motor. Read the instruction
manual for the motor carefully for more information.
The amount of the air should be sufficient to remove
the needle thread from the fabric.
Adjustment is made by turning speed control D as
required (the amount of the air on FX4412P/UTC is
fixed).
6
Summary of Contents for FX/UTC Series
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