Rear Side - Citizen CL-S6621 Technical Manual

Disassembly, Reassembly and Lubrication
3-6-10. "SA, Ribbon Tension Shaft R" and "SA, Tension Sensor" on the

rear side

1. Open the "Cover Top" Block and remove the "Unit, Ribbon". Refer to
2. Remove the ribbon covers. Refer to
3. Remove the "Unit, Ribbon Sensor R". Refer to
Ribbon Frame"".
4. Release the "Bush Ribbon Roller" (2 pcs.) () at both ends. First, lift its end with the blade of a
flat-blade screwdriver or the like ("a") and then turn it by approx. 90 degrees ("b"). (See the
magnified view.) Next, remove the "SA, Ribbon Tension Shaft R" Block, and then the "Bush
Ribbon Roller" (2 pcs.).
5. Remove the 2 screws (No.0, TFH (PT4-0.5), M2.), and detach the "Interrupter Ribbon Sensor"
and "Holder Tension Spring 1" from the "SA, Ribbon Tension Shaft R" ().
6. Remove the 1 screw (PH (PW), M2x8) (), and detach the "Lever Tension Adjust R" Block and
"Shaft Tension Adjust".
7. Remove the 2 Screws (No.0, TFH (PT4-0.5), M2) (), and detach the "Knob, Tension Adjust"
from the "Lever Tension Adjust R".
8. Remove the 1 screw (No.0, TFH (PT4-0.5), M2), and detach the "Holder Tension Spring 2" and
"Spring Ribbon Tension" (2 pcs.) from the "Lever Tension Adjust R".
9. Remove the 2 screws (No.0PH (4-0.3)M2x3 (NI)) (), and detach the "SA, Ribbon Sensor"
from the "Plate Ribbon Tension Sensor".
Lever Tension Adjust R
Shaft Tension Adjust
J105
Bush Ribbon
Roller
Plate Ribbon
Tension Sensor
Note on reassembling:
• Apply FLOIL G-311S to the slits (4 places) shown by the
CL-S6621
"3-6-4(1) Removing the ribbon
Interrupter Ribbon Sensor
Holder Tension Spring 1
No.0PH (4-0.3)
M2x3 (NI)
b
a
FLOIL G-311S
"3-6-8 "Unit, Ribbon Sensor F/R" and "SA
PH (PW), M2x8
SA, Ribbon Sensor
Bush Ribbon Roller
marks.
3-26
"3-6-2 Unit, Ribbon".
covers".
SA, Ribbon Tension Shaft R
No.0, TFH (PT4-0.5), M2.
No.0, TFH (PT4-0.5), M2
No.0, TFH (PT4-0.5), M2
Knob, Tension, Adjust
Holder Tension Spring 2
Spring Ribbon Tension