[R-390] R-390 RF Deck Reinstall - Loading Two Teeth?

[Barry]

With the gear teeth disengaged from its mating gear(s), allow both gear halves to self rotate to the position where the spring has no tension.

If the gear teeth are not completely aligned, then in the direction of increasing spring tension, rotate one gear half against the other gear half to align the teeth to the first position where the teeth align.  That should not be more than 1/2 tooth difference and that's essentially "zero spring loading".

Continue rotating the gear half in the same direction to where the teeth align again.  That's "one gear-tooth spring loading".

Continue rotating the gear half in the same direction to where the teeth align again.  That's "two gear-teeth spring loading".

Like Cecil said, it's more difficult to describe than to do.  :)

HTH,
Barry - N4BUQ

----- Original Message -----
> From: hackmohr at myfairpoint.net
> To: r-390 at mailman.qth.net
> Sent: Friday, April 7, 2017 9:24:48 AM
> Subject: [R-390] R-390 RF Deck Reinstall - Loading Two Teeth?
> 
> Can anyone explain what is meant by "loading gear by two teeth" in the TM-35
> manual procedure for replacement of the RF Deck? There are 3 mentions of
> this in the procedure: (6) "Load the large brass split gear two teeth",
> (9)"Load the Megacycle Change control drive gear by two teeth" and (12) load
> the gears two teeth". I'm assuming it's a procedure to keep the RF Deck
> gears from clashing with the chassis gears when you reinstall the deck?  But
> I'm mystified as to what and how you "load two teeth". BTW I've started a
> webpage for a blow-by-blow account of my rebuild if anyone is interested at
> http://home.myfairpoint.net/~hackmohr/r390/
> 
> Mark WA2FXM
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