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I. IMPORTANT SAFETY INSTRUCTIONS
1) Never operate the machine unless the oiling tank has been properly lubricated.
2) After the completion of a day's work, remove dust and dirt accumulating on the hook, bobbin thread
trimming knife section and lubricating hole of the oil tank. At this time, also check whether or not the oil
quantity is adequate.
3) Be sure to return the starting pedal to the home position after the machine has started to run.
4) This machine is provided with a machine head tilt detector so that it cannot be operated in the state
that the machine head is tilted. When operating this sewing machine, turn the power switch ON after
setting the sewing machine to the bed base properly.
II. SPECIFICATIONS
Main specifications of the LBH-1790S computer-controlled, lockstitch buttonholing machine
Subclass
Buttonholing of cloth such as men's shirts, blouses,
Major application
work uniforms, ladies' wear, etc.
Buttonholing size
– 1 –
S
Standard : Max. 5 mm
Special type part : Max. 10 mm
Knife size used :
6.4 to 31.8 mm (1/4' to 1-1/4')
Buttonholing sewing length
Standard : Max. 41 mm
Special type part : Max. 120 mm
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