Sa Tra Sen Pcb" And "Gear Bevel Lead Screw U - Citizen CL-S6621 Technical Manual

Disassembly, Reassembly and Lubrication

3-6-16. "SA TRA Sen PCB" and "Gear Bevel Lead Screw U"

1. Remove the "Unit, Mechanism". Refer to
2. Remove the "Unit, Sensor U". Refer to
3. Remove the 1 screw (BHT (#2), M3x6 (NI)) and detach the "Knob Guide Paper U".
4. Turn the "Gear Bevel Lead Screw U" (blue knob) in the direction as shown in the magnified
view to move the "Head Adjust Sensor U" to the right.
NOTE: Turn the "Gear Bevel Lead Screw U" (blue knob) until it stops.
5. Open the "Head Adjust Sensor U".
6. Remove the 1 screw (No.0, TFH (PT4-0.5), M2x4) from the "SA TRA Sen PCB", and then
disconnect the "FFC TRA Sensor" from the "SA TRA Sen PCB".
7. Remove the "FFC TRA Sensor" from the "Holder Adjust Sensor U".
SA TRA Sen PCB
No.0, TFH (PT4-0.5), M2x4
CL-S6621
"3-6-13(1) Unit,
"3-6-15 Unit, Sensor
Gear Bevel Lead Screw U (Blue Knob)
J9
Holder Adjust Sensor U
Knob Guide Paper U
3-38
Mechanism".
U".
Cover Guide Paper U
Guide Paper U
BHT (#2), M3x6 (NI)
Holder Adjust Sensor U
Holder Adjust Sensor U
FFC, TRA Sensor