This video shows the thread not between the sewing machine tension disks - what did I do wrong?
About this machine:
Sailrite LSZ-1, 5mm ZIGZAG & Straight Stitch Walking Foot Sewing Machine LSZ1, 150W, 1.5A, 1/4" Welt Foot, 800 SPM, 4 SPI", 6mm SL, FREE 100 Needles
Use Organ Size 22 Needles system 135x17, and #69 bonded nylon/polyester thread for sewing on exterior weight upholstery fabrics. Both zigzag and straight stitch can be operated in reverse with the lever on the right. Stitch quality is comparable to an industrial machine, for a fraction of the price… plus the added bonus of a zig-zag stitch, now that's value!
All of the convenience features are standard to make your job easier: reverse lever, zigzag adjustment lever up to 5mm, stitch length adjustment, built-in bobbin winder, fabric pressure adjustment knob on top and oscillating shuttle hook. 150 Watt, 1.5 Amp, 110 Volt, 60 Cycle Motor, 8000RPM. High lift walking foot with 1/4" clearance underneath the foot. Sews Up To 1/4" Compressed Fabric. 4 stitches per inch maximum stitch length.
Up To 800 Stitches Per Minute. Toothed Belts And Pulleys. Cleated positraction belts combine with new geared hand wheel pulley, geared reduction pulley and geared motor pulley to eliminate slipping. Special heavy duty motor attached up to 150 watts, 1.5 amps, twice as much as home sewing machines rnrn. Top And Bottom Feed. Spring loaded reverse. Uses 16 class welt foot. Fabric Presser Foot Pressure Adjustment. All-Metal Construction.
Portable Walking Foot Sewing Machine. Foot Control Included. Fits regular portable case or cabinets. In straight stitch mode, a needle positioning lever allows for movement of the needle left, right, and center. Uses standard upholstery needles: 135x17, size 22, 20, 18, etc.