[R-390] R-390A Zero adjust

[Bob Young]

Yeah, my disc is fine and presses on the three shafts, it seems like on side of the clutch is binding someplace as it is pushed away from the mating surface on the other gear.

Bob
KB1OKL

> Date: Sat, 16 Mar 2013 16:45:58 -0400
> From: k2cby at optonline.net
> To: R-390 at Mailman.qth.net
> Subject: [R-390] R-390A Zero adjust
> 
> The disc attached to the zero adjust shaft on my R-390A (a 1954 Motorola)
> has always been loose and rotates freely, but it works fine.
> 
>  
> 
> As the zero adjust knob is rotated clockwise, the disc at the end of the
> shaft bears on three pins projecting from the clutch. The disc doesn't turn
> anything; it imparts pressure, not rotary motion. So long as the pins are
> depressed the clutch will disengage.
> 
>  
> 
> Miles B. Anderson, K2CBY
> 16 Round Pond Lane
> Sag Harbor, NY 11963
> Tel.: (631) 725-4400
> 
> Fax.: (631) 725-2223
> e-mail: k2cby at optonline.net 
> 
>  
> 
> 
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