Hi All
I wonder if what they mean concerning "shims" is the chevron packing that is part of the hull seal. There is nowhere else that the periscope can be "shimmed". This is shown clearly in Figure 2-47 on page 36 of the periscope manual. This section of the manual also covers removing and installing a periscope.
The hull packing can remain in place while removing the periscope. After the periscope is removed, the hull seal components can be delt with.
The hull seal components will have to be removed before the periscope is installed. The components are installed one at a time from inside the conning tower while the periscope is supported by a safety clamp above. The Hoisting Yoke will not be in place at this time. After the packing is in place the Hoisting Yoke is raised into position. A good description of the Hoisting Yoke is given starting on Page 470 of the Periscope Manual.
To separate the periscope from the hoisting yoke, you have to remove the setscrews, item 4 on Figure 7-26, Page 472, and unscrew the Cover Ring, Item 16. When you raise the periscope out of the Hoisting Yoke, there will be a set of Split Rings, Item 17, in a grove in the periscope. These split rings are removed and this will allow you to remove the Cover Ring and the periscope can be raised out of the submarine.
When you install the periscope you must be sure the Cover Ring is on the periscope and the Split Rings are in place. There is no need to take the Housting Yoke apart unless it must be cleaned and lubricated.
If the periscopes on the BATFISH are in the full raised position it could be a problem gaining access to the top or the Hoisting Yoke to remove the Cover Ring Lockscrews and the Cover Ring.
Darrin, Do you happen to know where in the TORSK bbs the periscope related entries are? I visited the the TORSK years ago to deliver an E&E Adapter for their Type 8B Periscope. As you may know, their periscopes were upgraded over the years but the Hull Packings and the Removal/Installation would be similar to the BATFISH.
Paul