2022-Ultrafeed LS Guidebook - Flipbook - Page 3
Table of Contents
Ultrafeed Safety ............................ 1
Adjusting Presser Foot Tension .................. 25
Machine Damage Prevention ...... 2
Removing Material From Under the Presser
Foot ................................................................. 26
WorkerB® Speed Settings ............ 3
Ultrafeed Maintenance .................................. 27
Preparing to Sew .......................... 4
Lubrication ................................................ 27-30
Choosing Thread Size.................... 4
Needle Types .............................. 5-6
Troubleshooting the Ultrafeed ..................... 31
Needle Installation ...................... 7-8
Proper Needle Orientation & Installation ....... 32
Presser Feet & Feed Dog
Installation ................................. 9-10
Replacing the Take-Up Spring ....................... 33
®
What Is the Posi-Pin Safety
Shear? ....................................... 11-12
Material Surface Is Being Damaged .............. 34
If Posi-Pin® Safety Shear Breaks................... 35
Winding Bobbins .......................... 13-14
Removing the Hook to Clean the Shuttle
Race Guide Shaft & Free Thread Jams ........ 36
Threading the Machine ................... 15-16
Skipped Stitches ....................................... 37-38
Removing & Installing Bobbin Case .............. 17
Thread Issues ........................................... 39-42
Installing Bobbin in Bobbin Case ................... 18
Needle Issues ................................................ 43
Picking Up Bobbin Thread ............................. 19
Bobbin Winding Issues .................................. 44
Using the Ultrafeed........................................ 20
Ultrafeed Timing ....................................... 45-54
Starting to Sew .............................................. 20
Regulating Stitch Length .......................... 21-22
Sewing in Reverse......................................... 22
Turning Corners............................................. 22
Thread Tension Adjustment ......................... 23
Advanced Thread Tension Adjustment ..... 24
Schematics................................................ 55-66
Specifications ........................................... 67-68
Warranty .................................................... 69-70