1.15 Loosen two setscrews (48) on the Helicoid Stopper Ring (47). Unscrew the Helicoid Stopper
Ring together with the Focusing Limit Ring (51).
1.16 Remove two panhead screws (35) and two flathead screws (36), and remove the 3rd Lens
Group Ring (45).
1.17 Remove three sets of Roller Shaft (43), Roller A (42), Roller B (41), and Washer (10).
Remove the 2nd Lens Group Ring (40).
1.18 Remove the Cam Stopper Ring (33) and separate the Cam Ring (34) from the
Inner Helicoid (44).
1.19 Remove three screws (53) and remove the Diaphragm Housing Assembly (527M) from the
Inner Helicoid (44).
