Sa Head", "Cam Head Adjust" And "Cam Head Balance; Sa Head" Block - Citizen CL-E720DT Technical Manual

Chapter 3 Disassembly and Maintenance
3-6. Disassembly, Reassembly and Lubrication

3-6-12. "SA Head", "Cam Head Adjust" and "Cam Head Balance"

When detaching or reinstalling the "SA Head", be careful not to damage the thermal
elements. Especially, avoid contacting the thermal elements with a metal part, etc.
Do not touch the thermal elements of the "SA Head" with your bare hand.

(1) "SA Head" Block

1. Remove the "Cover PF Motor". Refer to
2. Remove the "Unit Opepane". Refer to
3. Remove the "Case" and "Cover Steel L". Refer to
4. Remove all connectors from the "SA Main PCB". Refer to
Connectors".
5. Remove the "Unit Mechanism". Refer to
6. Remove the "Unit Head". Refer to
7. Place the "Unit Head" upside down as shown below.
8. Remove the 2 screws (BH M3.0x6 (NI)) and detach the "Guide Head Cable".
9. To make removal easy, set both dials (Media width adjustment dial and Media thickness
adjustment dial) to "5".
10. While pressing down the "SA Head" Block, first move it forward and then to the left to
remove it. Refer to the arrows in the figure.
11. Disconnect the 1 connector and remove the "SA Head Cable" from the "SA Head" Block.
12. Remove the 2 screws (BH M3.0x3 (NI) and BH M3.0x6 (NI)), and detach the "SA HD Earth
Wire".
BH M3.0x3 (NI)
BH M3.0x6 (NI)
SA HD Earth Wire
CL-E720DT
Caution
"3-6-2 Cover PF
"3-6-3(1) Unit
"3-6-6 Unit
"3-6-11 "Unit Head" and "Unit
SA Head Cable
Unit Head
3-28
Motor".
Opepane".
"3-6-4 Case".
"3-6-5(1) "SA Main PCB"
Mechanism".
PF"".
BH M3.0x6 (NI)
Guide Head Cable
"SA Head" Block
"5"
(Media Width Adjustment Dial)
"5"
(Media Thickness Adjusment Dial)