[R-390] The Gear Train Logically

[Norman Ryan via R-390]

Hi, Craig,

This is great advice, and I echo your sentiments about Scott Seickel's excellent piece.

In addition to all that, I take copious notes including sketches while placing parts in numbered ziplock bags.  Never once do I rely on memory -- at my age mine is suspect!  I take digital pictures as well.

Bottom line:  The work is exacting, but worthwhile.  If done thoroughly, I cannot see why a gear train teardown ever should need to be redone.  Keep the gear train very lightly lubed with something like Mobil 1 and all should be well.

73 de Norman, KG4SWM



On Wednesday, July 30, 2014 8:46 PM, Craig Heaton <hamfish at efn.org> wrote:
 

>
>
>Having used Scott Seickel's gear train tutorial, it is a 10 on my scale. The
>first page: item #5, suggest a SUPER important item which is a large flat
>hard surface and a clean floor. The next on my list is a logical method of
>disassemble and getting the beast back together, in one working radio. The
>parts n' piece have to go somewhere, which makes some grown men cry.
>
>A couple work life times ago a technique was shown to the students while
>attending a place of "School House Bugs". For some of us it came natural,
>did it all of our working lives. The light bulb lit for the rest while
>chasing bugs. It is all about where to place the parts n' pieces. Unless one
>is real good; don't dump all the parts in a brown paper bag, shake real
>good, invert the bag letting everything roll about the floor. At said
>"School House Bugs" muffin pans were suggested as a place for the parts n'
>pieces. The little lady of the house might not be happy using her cooking
>ware in that fashion. But go ahead if you dare. 
>
>The work bench must be clear of clutter. Find a new home for the junk while
>playing with the gear train. Clean/clear the surrounding floor. The little
>steel ball in the Geneva Drive is going to fall, bounce, and find the crack
>in the floor. 
>
>With that said, I've placed the RF deck/gear train on the right hand side of
>the bench (work area). The left side is clean and bare of parts, tools, etc.
>Follow along with Mr. Seickel's pictorial. Remove the first part, clamp,
>gear, etc. Now place that item to the far top left of the bench. Along with
>that piece, also place any clamp/fastener with said first item. Moving on to
>the next item, place it below the first item. When getting to the bottom
>edge of the bench, move over to the right and do it all over again. Repeat
>until all the gears, clamps, geneva drive, etc. are laid out in some logical
>order. 
>
>At this point go ahead and clean, deburr, lube to your heart's content with
>the last item placed in logical order. Put said item back onto the RF deck.
>In reverse order, get it back together all nice, clean, & smooth. The first
>time I had one of these mechanical marvels  spread on the bench, it took 12
>hours start to finish. Finished, done, ain't gonna do it again. It is clean,
>smooth, and last a long time. Next owner can sweat about cleaning it again.
>
>Craig,
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