[R-390] Gear Diagram Needed

[pete wokoun, sr.]

  When we did the Y2K we knew it NEEDED this drawing cut up and simplified 
but we didn't have the time or capability to do it right back then...so it 
was left to a later generation!
  I have the Army TM 11-856A manual which has a pretty good exploded view of 
the gear train assembly (fig 84).  It even seems to show all the spacers, 
washers, etc.  The latest Navy manual also has this diagram as Fig 6-36.  
The Y2K has it reproduced on page 6-92 but I think you'll do better getting 
a bigger copy off one of the earlier manuals.  The army manual may be one of 
the earliest and clearest and all the others are just copies of it.

pete KH6GRT


>From: Bob Camp <ham at cq.nu>
>To: Barry <N4BUQ at aol.com>,R-390 HF Receiver List <r-390 at mailman.qth.net>
>Subject: Re: [R-390] Gear Diagram Needed
>Date: Sun, 13 Feb 2005 17:34:58 -0500
>
>Hi
>
>One of these days somebody needs to do a close up video of *exactly* how 
>the RF deck goes together mechanically. It would take some time, a good 
>deck, and a *very* good camera. I think I strike out on all three....
>
>	Take Care!
>
>		Bob Camp
>		KB8TQ
>
>
>On Feb 13, 2005, at 5:03 PM, Barry wrote:
>
>>I seem to recall there is an exploded diagram of the geartrain in the 
>>R390A
>>somewhere.  I have the CD from Scott that shows the rebuild operations 
>>(VERY
>>NICE), but I don't see where it shows where some of the washers go.  There
>>are some stategically placed "thrust" washers at various places and I'm 
>>not
>>quite sure where these go.
>>
>>I don't have the Y2K manual here and that may be where I saw it.  I'll 
>>check
>>at work; however, I do have teh R390A CD with all the tech manuals in it.
>>The only "diagram" I see is more like a mechanical schematic without 
>>detail.
>>
>>Am I just dreaming?  If not, can someone point me to this drawing?  If it 
>>is
>>in the Y2K manual, then let me know that too.  I'll have access to that
>>tomorrow.
>>
>>Thanks!
>>
>>Barry(III) - N4BUQ
>>
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