Citizen CL-E720DT Technical Manual page 101

Chapter 3 Disassembly and Maintenance
3-6. Disassembly, Reassembly and Lubrication
• When engaging the "Spring Head Up" (), first, hook it on the upper hook of the "Unit Head" (),
and next on the lower hook of the "Unit PF" ().
At this time, hook the "Spring Head Up" () so that its hook parts direct inward of the
mechanism as shown below. (This can prevent unwanted noise that might occur when the "Unit
Head" () is opened or closed.)
Hook part
2 Spring Head Up
Hook part
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CL-E720DT