One method I used for field repair:
1. Place the connector with fingers up on a hard surface (desk, etc.)
2. Lay the cable on so you can see the first and last pins, leaving
at least 1/2" overlap.
3. Press down on the cable to start all the pins penetrating, then
roll, from the center out, both ways, using a soft plastic body such
as a felt-tip marker pen, until the cable is gripped.
4. Attach the cover, then squeeze the cover to the connector,
preferably with a vise to maintain parallel force. You can use
pliers if you are careful, and do not attempt to make the distance
up all at once, but work back and forth from one end to the other.
I have used this method successfully for 20 years.
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