High and long arm has been adopted. The long distance from the machine arm to the needle contributes to improved workability. The LU-2800 Series is a unison-feed, lockstitch machine with a vertical-axis large hook which is provided with substantially improved functions and performance.
 
Functions for improving seam quality and workability
The long-distance from the machine arm to the needle contributes to improved workability.
 
Walking-foot/presser-foot alternating vertical movement mechanism
The sewing machine has adopted a feed mechanism that keeps the ratio between the amount of the vertical movement of the walking foot and that of the presser foot constant even when the material is changed. The amount of the alternating vertical movement of the walking foot and the presser foot is 9 mm at the maximum. This amount can be set with ease by means of the large dial installed on the upper section of the sewing machine.
 
Higher lift of the presser bar
A presser bar height of 20 mm is achieved when using the automatic presser bar lifting lever. Thanks to this feature, the process of joining leather and Eccentricity of the feed driving cam is adjustable. Adjustment of the eccentricity of the feed driving cam has been enabled. As a result, the sewing machine is able to perform sewing with the feed that is best suited to the material and thread used. It is no longer necessary to prepare other subclass model sewing machines.
 
New lubrication system
Lubrication system is powerful and stable even low speed.
 
New bobbin thread spool device
New bobbin thread spool device is no necessity of rolling thread manually.
 
Stitch length can be changed over among different lengths
The sewing machine with a thread trimmer is provided as standard with a 2-pitch dial. One unit of this sewing machine is able to sew different sewing lengths since the sewing length can be instantaneously changed over.
 
2.0 / 2.7 fold-capacity hook
The hook can be adjusted with a screw amount of needle guard contact to the needle. The needle guard can be easily adjusted. Therefore, it prevents stitch skipping and wear of hook edge.
 
New-type tank-style automatic lubrication mechanism has been adopted
The oil dropped from the hook and its surrounding sections into the under-cover is filtered to remove dirt and dust and is then returned to the oil tank. This method saves the effort of oiling and reduces oil consumption. The remaining oil quantity indicator is provided on the front face of the machine head. Lubrication can be carried out without tilting the machine head.
 
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