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Model Forum / Radio Controlled / Helicopters / August 2007



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One-way clutch lubrication

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Robert Roland - 08 Aug 2007 16:40 GMT
I have a Raptor 50. The manual states that the one-way clutch
(autorotation clutch) needs greasing "every couple ten flights". What
does that mean?

What type of lubrication do I use? The manual specifies purpose-made
grease, but my LHS does not have that. I have tried automotive wheel
bearing grease, but it seems too stiff. The engine clutch actually
spins easier than the auto clutch.

Do I have to disassemble the clutch "every couple ten flights"? Can't
I just put a couple of drops of light oil on it once a day, so that
the oil seeps into the clutch by gravity?
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The OTHER Kevin in San Diego - 08 Aug 2007 18:21 GMT
>I have a Raptor 50. The manual states that the one-way clutch
>(autorotation clutch) needs greasing "every couple ten flights". What
[quoted text clipped - 8 lines]
>I just put a couple of drops of light oil on it once a day, so that
>the oil seeps into the clutch by gravity?

Grease, as you've discovered, is too viscous.  I use Tri-Flow myself,
but others use a light machine oil or automatic transmission fluid.
Beav - 08 Aug 2007 21:42 GMT
>>I have a Raptor 50. The manual states that the one-way clutch
>>(autorotation clutch) needs greasing "every couple ten flights". What
[quoted text clipped - 11 lines]
> Grease, as you've discovered, is too viscous.  I use Tri-Flow myself,
> but others use a light machine oil or automatic transmission fluid.

And even others (like me) don't use ANYTHING, because it ALL turns sticky in
the end and auto units don't need sticky.

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Nigel Heather - 08 Aug 2007 21:57 GMT
Yep - there's enough oil in the exhaust.

Cheers,

Nigel
The OTHER Kevin in San Diego - 08 Aug 2007 22:59 GMT
>And even others (like me) don't use ANYTHING, because it ALL turns sticky in
>the end and auto units don't need sticky.

My unit could use some "sticky" all the time.  :)
Beav - 09 Aug 2007 23:13 GMT
>>And even others (like me) don't use ANYTHING, because it ALL turns sticky
>>in
>>the end and auto units don't need sticky.
>
> My unit could use some "sticky" all the time.  :)

It's coz you're old Kev :)

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Swiss Tony - 09 Aug 2007 23:28 GMT
>>>And even others (like me) don't use ANYTHING, because it ALL turns sticky
>>>in
[quoted text clipped - 3 lines]
>
> It's coz you're old Kev :)
Beav - 11 Aug 2007 23:12 GMT
> Hey Beav aint you old too ;-3

Methusela asked me the same thing when he was a lad.

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The OTHER Kevin in San Diego - 10 Aug 2007 18:02 GMT
>> My unit could use some "sticky" all the time.  :)
>
>It's coz you're old Kev :)

I'd be willing bet a large amount of your favorite beverage you've got
a few years on me ya olde pharte.
Beav - 11 Aug 2007 23:11 GMT
>>> My unit could use some "sticky" all the time.  :)
>>
>>It's coz you're old Kev :)
>
> I'd be willing bet a large amount of your favorite beverage you've got
> a few years on me ya olde pharte.

About 20? I look younger than you though :-)

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Beav

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