Read Sharp MX-FN27 (serv.man9) Technical Bulletin online
(4) Change of the tension spring (SPRING, TENSION)
(Excerpt from Parts Guide 10 Disposition tray section1 for MX-FN27series as reference)
(5) Location of the clutch, cam, and gear changed:
(Excerpt from Parts Guide 3 Internal mechanism1 for MX-FN27series as reference)
Tension spring (SPRING, TENSION)
Change of the spring pressure
Before change: 0.3N
After change: 3.0N
Change of the spring pressure
Before change: 0.3N
After change: 3.0N
Clutch changed
Cam changed
Gear changed
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