down. This will keep the shim washers and store for reassembly. Place the lens barrel with the
rear up, as shown in Figure 4-59. Use special tool No. CCR-12459 as a spanner wrench.
Loosen the retaining nut holding the shutter to the lens barrel. Use your fingers to unscrew the
retaining nut. Lift the lens barrel. The shutter assembly will be separated from the lens barrel.
Bayonet
Lens Barrel
Tube
Screws (4)
Shutter
Lens Spanner Wrench
(Special Tool No. CCR-12459)
Retaining Nut
Ring
Figure 4-59. Removing retaining nut from shutter, 75MM lens
Removing Aperture Ring and Index Mark Ring
(Figure 4-60)
67