Figure 6-62.  Juki LU-563. Figure 6-61.  Consew model CP-146R Mini Walking Foot.  Figure 6-63.  Consew model 206RB.  The double needle machine is preferable for binding tape  repair, although with experience a rigger can install TY-3  tape with a single needle machine making two passes. When  using this method, a tape folder must be used, and the inner  stitch must be done first. Advancing to master rigger requires additional specialized  machines, such as a medium-duty, single needle, and  compound feed machine, like a Consew 226R or a Juki LU- 563.  [Figure 6-62]  The  Consew 206RB is also a good choice  for those on a budget. This type of machine is used for doing  container repairs and light harness work.  [Figure 6-63]  The  next machine should be a heavy-duty harness machine, such  as a Singer 7-33, 7-34, or Consew 733R.  [Figure 6-64]  These  machines specialize in sewing 5-cord nylon or heavier thread  used in the manufacture and repair of parachute harnesses.  sewing machine manufacturers build models that fit within  the various duty types. Those models mentioned are only  representative for that category.  [Figure 6-66] The purpose of the following information is not to make  you an accomplished sewing machine expert and repairman.  You should learn the basics about what makes your sewing  machines work and how to perform routine maintenance  Lastly, a bar tack machine, such as a Pfaff 3334 or Singer  69 class, allows fast, strong, professional repairs and  is invaluable in line replacement and manufacturing.  [Figure 6-65]  This selection of machines provides the  rigger with the ability to undertake virtually any repair or  modification needed on today’s parachutes. Remember, all  Identification and Nomenclature Figure 6-64.  On the left is a Singer 7-34 heavy duty harness sewing machine and on the right is a Consew 733R. 6-16