[GreenKeys] Re: Teletype Gearshift mechanisms

[Jack]

I always shift my ASR's nylon shift by turning off the motor and shifting as
it slows down (as Don describes). The steel shifts need a lot of fiddling to
mesh...
And, as Dave points out, I too have a 28KSR with the knob on the front of
the keyboard...it shifts on the run, real smoothe!

Jack WA2HWJ


----- Original Message -----
From: "Don Robert House" <drhouse at nadcomm.com>
To: "david freeman" <_dave.f at mail.com>
Cc: <greenkeys at mailman.qth.net>
Sent: Wednesday, February 01, 2006 4:34 PM
Subject: [GreenKeys] Re: Teletype Gearshift mechanisms


> As far as I know only the UGC-27 and UGC-77 (both compact 28 KSRs)
> were intended to be shifted while under full load.  It was part of
> the Navy specification.
> The other fully meshed nylon gear shifters were shifted as the
> machine was shutting down after the power switch was turned off. Then
> turned back on.
> On the full metal non-meshed version the motor should be turned over
> by hand while moving the selector lever.  All shifters need to be
> greased.
>
> Don
> K9TTY
>
>
> On 1 Feb 2006, at 8:14 AM, david freeman wrote:
>
> Russ,
>
> I wonder if this is true in all cases?
> The metal gear transmissions are sliding gears
> on a keyed shaft and so they certainly should
> be stopped while changing speeds.
>
> The nylon gear transmissions are constant
> engagement with a sliding dog that picks
> which gearset is transferring power. It
> looks like it was made to "shift on the go"
>
> I have a 28KSR that has a rotary knob on the key
> board to select the speed and the motor
> needs to be turning to get it to shift.
>
> I saw a 28ASR with three keys in the top
> row to select the speed, so I'm pretty
> sure that one can be changed on the fly
> as well.
>
> I have a number of transmissions now and
> am thinking a web document to show the
> variations and how to tell if what you're
> thinking of buying will fit what you want
> it to would be nice. (Sure would have saved
> me a lot of mis-steps) Anyone want to
> collabrate?
>
> Dave, WW8S
>
>
> > ----- Original Message -----
> > From: WA3FRP at aol.com
> > To: drhouse at nadcomm.com, rtty at gwltd.com
> > Subject: Re: [GreenKeys] 28 ASR Gears?
> > Date: Tue, 31 Jan 2006 21:09:58 EST
> >
> >
> > ...and don't try to shift gears while the motor is running...there
> > is NO
> > CLUTCH....
> >
> > :-)
> >
> > 73
> >
> > Russ
> > WA3FRP
> >
> >
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>
> >
>
>
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