Issue link: https://docs.hic.us/i/445658
Table of contents RR04 Chapter 11 Troubleshooting, maintenance 1. Troubleshooting............................................................................................................................ 206 1-1. Stop factor (Code No.) ...................................................................................................... 206 1-2. When the machine does not sew well ............................................................................... 214 2. Maintenance ................................................................................................................................. 217 2-1. Cleaning ............................................................................................................................ 218 2-2. Lubrication ......................................................................................................................... 220 2-3. Greasing ............................................................................................................................ 224 2-4. Inspection .......................................................................................................................... 227 2-5. Repair ................................................................................................................................ 227 3. Adjustment of one-touch middle thread guide .............................................................................. 228 3-1. Stroke adjustment of thread take-up spring ...................................................................... 228 3-2. Tension adjustment of thread take-up spring .................................................................... 229 4. Adjusting height of the presser foot (Input of the password is necessary) ................................... 230 5. Upgrading the software (Input of the password is necessary)...................................................... 233 Chapter 12 Appendix at the back of the manual 1. Specification of the machine......................................................................................................... 236 1-1. Electrical specifications ..................................................................................................... 236 1-2. Ambient noise level ........................................................................................................... 236 1-3. Machine weight ................................................................................................................. 237 2. Electrical system diagram............................................................................................................. 238 3. Terminology.................................................................................................................................. 242