>The citrus cleaner is an environmental safe degreaer based on lemon oil.
It is called "Citrus Base Cleaner" (3M ID No. 34-7041-4529-0, or
62-4615-4930-5) and is non-corrosive, the silicon oil is called "Silicone
Lubricant" (3M ID No. 62-4678-4930-3) and is USDA approved and meets FDA
requirements. Both products are made by 3M and are used for health care
and food industry purposes (I am a 3M "Labby"). The silico lubricant is
not an "oil" as such and disappears from the surface in its liquid form.
It just leaves a so called "thin film" silicone coating on the surfaces
that will not attrackt contamination but allows for low friction movement.
I started to use these products in my work on research of medical
instrumentsand they worked great, and I reached the conclusion that they
should be OK for such "rather crude" (it is all a matter of ones view
point) devices like odometers.
>
Dietmar
>I'm not familiar with the lube mentioned but I would be generally wary of
>introducing an oil into the works. Oil can capture dust and may affect
the free
>movement of the drag cup.
>
>I'm also unfamiliar with citrus cleaner but know that the numbers on my
odometer
>were painted on with a very fragile paint. (The good news was that it was
very
>easy to repaint the numbers).
>
>Glad these worked for you but just saying that many light oils and general
>purpose cleaners can create problems in this rather delicate instrument.
>
>Geo Hahn
>59 TR3A
>
>Dietmar Schlei wrote:
>
>> I had the same problem with my TR4 odometer. I solved the problem with
>> good cleaning of the system. I took the thing appart, blew it out with a
>> computer air can, sprayed citrus cleaner into it, blew it out again, and so
>> forth... for about 5 times. Following this I sprayed FDA grade (allowed in
>> food processing equipment because of its purity) silicon oil into the whole
>> system and it works like a charm now.
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