[Drake] PTO mechanical questions

[Garey Barrell]

Jack -

Well, first, I would suggest posting your question over on DrakeRadio  at Yahoo groups.   There is a lot of PTO repair information in the 
archives, and several people have gone through PTO repair with units worse than yours!  :-)

The answers to your questions are yes, yes, and yes.  I think that's enough yes's!

Roughly, there is a Philips head set screw at the 'rear' end of the drive screw, with a single ball bearing under it, that sets the pressure 
on the front ball bearings (10 of them, each 0.125" dia steel, available from most ACE or TrueValue stores in the 'little yellow drawers' in 
the fastener section.)

This will probably solve most of your mechanical problems.

The board may be removed carefully for easier access, but really not necessary for most things.

The slug may be removed carefully from the coil, but again not really necessary.

So join us!!

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>

Jack Antonio wrote:
> Some time ago, I picked up an RV-4. Not in the
> best of shape, and the tuning knob was frozen,
> but the price was right.
>
> Just started today to dope it out, and it looks
> like the PTO is a mechanical mess.
>
> Question is, how repairable is the bearing area
> in the front of the PTO bracket.
>
> This one is missing all of its ball bearings,
> and the shaft is being held in (the wrong)
> place by a "C" washer. The washer forces the shaft
> to be about 1/8" displaced to the rear, and
> the stop pin interferes with the dial drive
> idler gear.
>
> Is there any hope for this PTO?
>
> Couple of other questions. Can the
> PTO electronics board be removed from the
> assembly without destroying calibration
> and tracking?
>
> Can the slug be removed from the yoke
> follower without damage?
>
> These last two questions may be academic, if
> I can't get the tuning mechanism working right.
>
> Thanks in advance.
>
> Jack Antonio wA7DIA/4
>
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