Here is the Compression Gland Cover dis-mantled
Parts from left to right are:
1) Chamber Cover
2) Compression Gland Insert (with O-ring)
3) Compression Gland Gasket
4) Metal disc
5) Fiber Friction Washer
6) Compression Screw
To re-assemble the Compression Gland Gasket start by:
1) Sliding the Compression Gland Insert into the Chamber Cover
2) Insert the 4 brass screws and screw the insert down tight
** make sure that the 4 small O-rings are in place first **
Next, put the Compression Gland Gasket into the Compression Gland Insert
Next, put the Metal disc on top of the gasket and the Fiber Washer
on top of the Compression Screw
Be sure to lubricate the threads and screw the Compression Screw into
the Compression Gland Insert

The Compression Gland Cover is now ready for use and should look like
the above pictures