Citizen CL-E720DT - SA Head Block; SA Head, Cam Head Adjust and Cam Head Balance

Chapter 3 Disassembly and Maintenance
3-6. Disassembly, Reassembly and Lubrication
CL-E720DT 3-28
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 “3-6-2 Cover PF Motor”.
2.
Remove the “Unit Opepane”. Refer to “3-6-3(1) Unit Opepane”.
3.
Remove the “Case” and “Cover Steel L”. Refer to “3-6-4 Case”.
4.
Remove all connectors from the “SA Main PCB”. Refer to “3-6-5(1) “SA Main PCB”
Connectors”.
5. Remove the “Unit Mechanism”. Refer to “3-6-6 Unit Mechanism”.
6.
Remove the “Unit Head”. Refer to “3-6-11 “Unit Head” and “Unit PF””.
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”.
Caution
BH M3.0x6 (NI)
Guide Head Cable
Unit Head
SA Head Cable
BH M3.0x6 (NI)
BH M3.0x3 (NI)
(Media Width Adjustment Dial)
(Media Thickness Adjusment Dial)
"5"
"5"
"SA Head" Block
SA HD Earth Wire