[Collins] 70K-2 PTO

[Dr. Gerald N. Johnson]

On Sat, 2007-11-17 at 08:45 -0600, David Murman wrote:
> I have a KWM-2A RE that was built about 1972 and when I rotate the main 
> tuning dial there are areas  that the knob moves but the frequency does not 
> unless you put pressure on the tuning knob. Makes it difficult to tune in a 
> sideband signal. I have tried to tighten the bushing but doesn't seem to 
> help and if you get it off the wheel it is a bear to get back on.
> 
> Will this remedy the problem I have or can someone point me in the right 
> direction. I have a 312B-5 that I use for the transmit side.
> 
Its time to take that PTO apart and soften up the grease on the screw.
Lumps of dried grease are making it stiff to turn. A complete cleaning
and new grease is the typical repair.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer