S-7200C
9-10.
Knee lifter lever mechanism ..............................98
9-11.
Needle bar and thread take-up mechanism.......99
9-12.
Presser foot mechanism.................................. 100
9-13.
Feed rock shaft................................................101
9-14.
Feed mechanism (1)........................................101
9-15.
Feed mechanism (2)........................................102
9-16.
Feed bar mechanism....................................... 102
9-17.
Tube holder, safety switch and
quick reverse solenoid..................................... 103
9-18.
Thread trimmer mechanism.............................104
9-19.
Oil tank, bed bottom cover and sub tank......... 105
9-20.
Needle, presser foot and R-actuator................106
9-21.
Thread tension mechanism .............................107
9-22.
Tension release wire and
thread trimmer solenoid................................... 108
9-23.
Wick holder and oil tube (-[]0[] specifications)... 109
9-24.
Tension pulley..................................................109
9-25.
Rotary hook..................................................... 110
9-26.
Stand............................................................... 111
9-27.
Needle plate, feed dog, etc..............................111
9-28.
Covers and operation panel (1)....................... 112
9-29.
Covers and operation panel (2)....................... 113
9-30.
Cable tie.......................................................... 113
9-31.
Connector........................................................ 114
9-32.
Knee lifter lever................................................114
10. ADJUSTMENTS ...............................115
10-1.
Adjusting the actuator switch position..............115
10-2.
Adjusting the safety switch position................. 116
10-3.
Adjusting the thread take-up spring................. 117
10-4.
Adjusting arm thread guide R.......................... 118
10-5.
Adjusting the presser foot height..................... 118
10-6.
Quick reverse device....................................... 119
10-7.
Matching the stitch lengths for forward feed
and reverse feed..............................................119
10-8.
Adjusting the feed dog height.......................... 120
10-9.
Adjusting the feed dog angle........................... 121
10-10.
Adjusting the needle bar height..................... 122
10-11.
Adjusting the needle and
feed mechanism timing.................................122
10-12.
Adjusting the needle and rotary hook timing..123
10-13.
Adjusting the thread trimming timing............. 124
10-14.
Adjusting the thread take-up amount
(-[][]3 specifications).......................................125
10-15.
Adjusting the needle up stop position............ 126
10-16.
Adjusting the treadle......................................128
10-17.
Adjusting the presser foot floating amount
(minute lifting amount)...................................128
10-18.
Adjusting the tension release wire.................129
10-19.
Adjusting the rotary hook lubrication amount
(-[]0[], []3[] specifications) .............................. 130
11. REPLACING PARTS........................ 131
11-1.
Fixed knife....................................................... 131
11-2.
Movable knife.................................................. 131
11-3.
Motor and timing belt....................................... 132
11-4.
Rotary hook RP............................................... 135
11-5.
Feed bar shaft, lifting feed shaft...................... 136
12. APPLYING GREASE (-[]3[], []5[] SPECIFICATIONS)........ 137
12-1.
When “GrEASEUP” appears…
When using the G50 operation panel.............. 137
12-2.
When “GrUP” appears…
When using the G10 operation panel.............. 139
13. SETTING METHOD FOR STANDARD DEPRESSION STROKES .............. 141
13-1.
When using the G50 operation panel.............. 141
13-2.
When using the G10 operation panel.............. 143
14. CONTROL BOX AND MOTOR.........145
14-1.
Checking the motor and power supply............ 145
14-2.
Checking the solenoids................................... 146
15. STANDING OPERATION PEDAL.... 147
15-1.
Installing the foot plug..................................... 147
15-2.
Connectors...................................................... 148
16. WIRING DIAGRAMS (X-7200C).......
149
17. CONNECTOR LAYOUT DIAGRAM (MAIN PCB)...................................... 150 18. COMBINATION OF TRANSFORMER SPECIFICATIONS AND CONTROL DEVICE SPECIFICATIONS.............. 152 19. TROUBLESHOOTING...................... 153
19-1.
Sewing............................................................ 153
19-2.
Error code displays..........................................158
20. 7-SEGMENT DISPLAY..................... 162