Titan DK 3700C, Руководство оператора

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MICHEL VAN DE WIELE NV
Instruction Manual TITAN DK3700C
CHAPTER 4 : MECHANIC ADJUSTMENTS OF THE HEAD
1. NEEDLE
When the machine is used continuously for 1 or 2 shifts a day, the needle should be
replaced every day or two.
If the needle is worn out, false stitches can occur and the thin needle can break and
cause damage to other parts in the machine. Therefore we advise to check regularly
the condition of the needle.
During sewing, a cloud of dust will build up on the needle holder. It is therefore
strongly advised to first remove any dust that may have accumulated prior to fitting a
new needle. If not , dust accumulation in the needleholder will change the position of
the needle, which in turn will result in false stitches and may in the end cause
abnormal wear on some internal parts of the machine.
To replace the needle
 Take the accumulated dust round the needle bar away
 Loosen the screw on the needle bar and remove the used needle
 Place the new needle in the right position with its flat side on the left side and
push it fully home into the needle holder.
 Check by turning the flying wheel if the flat side of the needle can pass next to the
point of the looper without touching it.
 Fix the needle in this position with the screw, and follow the instructions in
following paragraph to obtain the right positioning of the needle with the other
parts involved in stitch formation ( = looper, spreader).
Correct needle position
Put the needle in its highest dead point and measure the distance between the point
of the needle and the needle plate. This should be exactly 19 mm .(Fig 6)
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