[Milsurplus] ZC1 problem

[Military1944 at aol.com]

ZC1 problem
 
Just been working on a ZC1 set. Found an open coil on one of  the ift's, 
luckily after I took it apart and opened up the can it was just a  wire off 
the connection, resoldered and the rx is now working fine. 
 
I then looked at the tx. First I could get no NET operation. I  reduced the 
dropping R a bit and the NET then worked, I was indeed getting RF  out, 
around 1.5W into my dummy load. I was trying to get the tx tuning scale in  
line with the rx so was adjusting the vfo trimmer, even at its max I could not  
get the dial down far enough, with the rx dial at 3.6 the tx dial was at 
3.5.  So, I added a small C across the trimmer and it started to work then it 
just  stopped and now there's no vfo either on NET or TX. I can only assume 
either the  anode or screen R has gone open or high or the screen bypass C 
is  s/c.
 
But, here's the question, how do you get the vfo/buffer unit  out to get 
access to these components?  Looking at it, it looks like  there's lots of 
nuts and bolts in the way. 
 
Would anyone know just what's involved in getting the rf  deck out? 
 
cheers,  Ben.