Re: [TenTec] Corsair PTO

[Jerry Volpe <kg6tt@tomorrowsweb.com>]

I just purchased a Corsair II and remote VFO for my station  Malcolm and 
I expect that I will be doing PTO rebuilds as well just as a matter of 
course. I just competed a PTO rebuild on a Century 21 using the factory 
PTO rebuild kit. It took about two to three hours. When I took the PTO 
apart I discovered serious part wearing as well as the fact that the old 
grease had pretty much turned into glue. The cleaning alone was very 
difficult but just replacing the grease would not have really fixed the 
VFO properly... .had to replace the worn out parts. As the rebuild kits 
are the same with just a different removal/replace instruction sheet I 
don't believe there will be any problems rebuilding the Corsair II and 
remote VFOs... just time.
If you have a situation where you do not feel you can do this rebuild 
but would like to have it done perhaps I can help you in some way.
73,
Jerald, KG6TT

> After receiving requisite allen keys via Dan/N4VET, I decided to tackle my Corsair2 pto grease problem. 
> Fortunately having my original Corsair1 available for spares, I tried a dummy run on that. 
> Conclusion, this is not as easy a job as would appear.
> After much deliberation I felt that without a new pto replacement kit I would 
> go for alternative option of the following using spare Corsair1 pto as role 
> model...
> Remove Corsair lower case and remove pto cover and gasket. Remove two screws 
> holding pto pcb and delicately prise upward the front side of pcb just enough 
> to view the brass ball-race housing. Do not rpt not overdo, or slacken the coax 
> earth tag screw to enhance this operation.  Using either a surgical hypodermic 
> or in my case printer ink replacement syringe, gently squirt (again in my case) 
> a small amount of two-stroke petrol on and around the ball race housing, 
> turning the main dial knob at the same time. The idea being to gently return 
> the original grease to its former viscosity. I used 2-stroke as it contains a 
> percentage of oil, hopefully leaving additonal lubrication when the petrol 
> evaporates.
> The result was immediate, a clean tune through each cw signal and even though 
> it could be my imagination the stability seems to have improved.
> Bonne chance,
> Malcolm /F5VBU
>
> NNNN
>
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