[Hallicrafters] SX-73 dial lock and stuff

[Tom Smith]

I'm restoring a SX-73/R-274 and have a few minor problems. 
The military manual that I have gives no detail 
information on the mail tuning drive mechanism. My 
receiver main tuning coupler has a pair of right angle 
plates on the coupling from the reduction gear set to the 
main tuning capacitors. In one direction the coupling is 
direct contact (with no give) but in the other direction, 
a pair of small springs pull the following plate and there 
is substantial error because of spring stretch. I have 
relubricated the main tuning caps as per manual 
instructions but any drag causes the springs to stretch 
and eventually catch up, but not immediately. It seems to 
me that a direct connection would be necessary in both 
directions to reduce dial readout error.
HELP!
What am I missing?

Tom  N5AMA