Brother RH-9820 Instruction Manual page 9

8. CLEANING AND INSPECTION ...........
8-1. Daily cleaning and inspection.................... 68
8-1-1. Cleaning ............................................. 68
8-1-2. Checking the air filter.......................... 69
8-1-3. Checking the needle........................... 69
8-2. Monthly cleaning and inspection ............... 69
8-2-1. Cleaning the control box air inlet
port ..................................................... 69
8-3. Cleaning and inspection as required ......... 70
8-3-1. Draining lubricating oil ........................ 70
8-3-2. Cleaning the eye guard ...................... 70
8-3-3. Lubrication.......................................... 70
8-3-4. Draining water .................................... 70
9. STANDARD ADJUSTMENTS .............
9-1. Adjusting the heights of the spreaders
and loopers................................................ 71
9-2. Adjusting the zigzag width (stitch width).... 72
9-3. Adjusting the zigzag base line position ..... 73
9-4. Adjusting the needle and looper timing ..... 76
9-5. Adjusting the looper stroke........................ 77
9-6. Adjusting the height of the needle bar....... 78
9-7. Adjusting the clearance between the
loopers and needle .................................... 79
9-8. Adjusting the needle guard........................ 79
9-9. Adjusting the spreader installation
positions .................................................... 80
9-10. Adjusting the spreader timing.................... 81
9-11. Adjusting the height of the throat plate...... 82
9-12. Changing the cutting length
(Replacing the hammer)............................ 83
9-13. Adjusting the cutting surface of the hammer ... 84
9-13-1. Filing the cutting surface of
the hammer ........................................ 84
9-13-2. Adjusting the contact between
the knife and the hammer .................. 85
9-14. Adjusting the axial play of the hammer ..... 85
9-15. Making the cutter driving shaft and driving
shaft presser move together...................... 86
9-16. Replacing the knife and adjusting its
position ...................................................... 87
9-16-1. Replacing the knife............................. 87
9-16-2. Making fine adjustments to the knife
position ............................................... 88
9-17. Adjusting the cutting pressure ................... 90
9-18. Adjusting the work clamp lift amounts ....... 91
9-19. Adjusting the work clamp positions ........... 92
9-20. Adjusting the positions of the work clamp
68
plates..........................................................93
9-21. Adjusting the cloth opening amounts.........94
9-22. Adjusting the upper thread feeding amount..95
9-23. Adjusting the lower thread feeding
amount <-01 specifications only> ..............96
9-24. Replacing and adjusting the upper
movable knife.............................................96
9-24-1. Replacing the upper movable knife ....96
9-24-2. Adjusting the upper movable knife .....97
9-24-3. Adjusting the position of the thread
9-25. Replacing and adjusting the movable
knife and fixed knife (for the lower thread
and gimp) <-01 specifications>..................99
71
9-25-1. Replacing the movable knife and
9-25-2. Adjusting the cutting pressure ..........100
9-25-3. Adjusting the meshing amount .........100
9-25-4. Adjusting the thread nipper
9-25-5. Adjusting the thread handler.............103
9-26. Replacing and adjusting the movable
knife and fixed knife (for the lower thread
and gimp) <-02 specifications>................104
9-26-1. Replacing the movable knife and
9-26-2. Adjusting the cutting pressure ..........104
9-26-3. Adjusting the movable knife
9-26-4. Adjusting the position of the auxiliary
9-27. Adjusting the gimp trailing length
<-02 specifications only> .........................107
9-28. Adjusting the position of the lower thread
presser <-02 specifications only> ............108
9-29. Installing (replacing) the auxiliary clamp
on the left side..........................................109
9-30. Adjusting the throttle valves.....................114
9-30-1. Adjusting the throttle valve of the
9-30-2. Adjusting the throttle vales of the
10. SEWING CIRCULAR STITCHES ....
11. ERROR CODES ..............................
12. TROUBLESHOOTING.....................
RH-9820
trimmer lever bracket ..........................98
fixed knife............................................99
assembly and opener .......................101
fixed knife..........................................104
installation position ...........................105
clamp ................................................106
cutter valve .......................................114
solenoid valves .................................115
116
117
122