Disassembly of Front Cover and Shutter Holder:1. Tear off front cover leather -A,B, (2136,2137) take off four setscrews (9004) and the M.X. changing knob (2132) so that the front cover set (219 set) may be taken off.2. Open the back cover and take out the light shield barrel (1034), shutter nut (2141) and shutter and also disconnect the soldered portions.3. Take off successively the focus adjusting washer (2140), reset ring (2020), shutter seat (2017), charge ring washer (2018) and shutter charge ring (2019).Adjust shutter after the shutter being assembled:Charge the shutter with the focusing lever being set at the near or closeup distance. If it fails to be charged, lift little by little the crank arm adjustment plate so as to select the charge point and then check if the reset ring arm is in contact with the shutter lever when the former is charged. Adjust the overcharge at the infinity position and confirm this adjustment at the near position also. If the adjustment is not sufficient, make further adjustment by means of the adjustment plate.