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flying-nut(at)cfl.rr.com
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 Posted: Fri Apr 03, 2015 11:58 am Post subject: Hartzell prop lubrication |
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It's a real WAG on my part, but I'm guessing that the volume of grease
isn't anywhere near critical. The WAG part: if there's sufficient grease
to coat the blade seal to keep it flexible and offer some lubrication to
the hub ... it's sufficient.
Linn
On 4/3/2015 2:54 PM, Bob Leffler wrote:
| Quote: |
So that leads to the question, why does their manual state six pumps? If that's too much and they are recommending something different, shouldn't Hartzell update the procedure in the manual?
Then we have the issue of does my gun pump the same volume as somebody else's?
It seems like it's still using a bit of magic and luck, since there is no effective method to measure the actual volume of grease until you pump too much and it oozes out the back.
Sent from my iPhone
> On Apr 3, 2015, at 1:44 PM, g.combs <g.combs(at)aerosportmodeling.com> wrote:
>
> he
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glastar(at)gmx.net
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| Posted: Fri Apr 03, 2015 2:33 pm Post subject: Hartzell prop lubrication |
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Actually the manual states it more exactly, they say 1fl. oz which is
aprox 6 pumps with a ....
see attached
| Quote: | On 4/3/2015 2:54 PM, Bob Leffler wrote:
>
>
> So that leads to the question, why does their manual state six
> pumps? If that's too much and they are recommending something
> different, shouldn't Hartzell update the procedure in the manual?
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| Description: |
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prop-grease.pdf |
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jesse(at)saintaviation.co
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| Posted: Fri Apr 03, 2015 2:59 pm Post subject: Hartzell prop lubrication |
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This is my experience exactly.
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse(at)saintaviation.com
Sent from my iPad
| Quote: | On Apr 3, 2015, at 3:28 PM, Miller John <gengrumpy(at)aol.com> wrote:
Tim must have been watching me do my prop 😞
Only I have not had mine resealed yet. Just slings a bit of grease now and then, especially first flight or two after the ACI…..
grumpy
do not archive
> On Apr 3, 2015, at 12:01 PM, Tim Olson <Tim(at)MyRV10.com> wrote:
>
>
>
> I don't know, I think some of the doubters should test the theory and
> just pump it full until it comes out...
>
> I did that once a long time ago (maybe 2007 or  , thinking that my
> understanding was better than the manuals logic.
>
> Eventually, I ended up having grease sling out of the hub, and
> I had the prop re-sealed, which cost I think $860.
>
> So, those that doubt the manual can test the theory and see if
> they have the same problem. That way I won't be alone in the
> boat. If it happens to a few dozen of us who didn't believe
> the manual, then we'll know that the manual is smarter, right?
> But, if nobody else has the problem, then we can know that our
> vast pool of a couple dozen anecdotal cases are better than
> the stuff Hartzel tells us. 
>
> I know me, I'm going to follow it to the letter from now on.
> Tim
>
>
>
>> On 4/3/2015 12:01 AM, Ron B. wrote:
>>
>>
>> I was told by a Hartzell rep. that they would rather we not add any grease at all rather than add more than the instructions say. You might want to check with them.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=440226#440226
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rv10flyer
Joined: 25 Aug 2009
Posts: 364
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| Posted: Sat Apr 04, 2015 5:50 am Post subject: Re: Hartzell prop lubrication |
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Hartzell recommends 1 oz or 6 strokes in their 30 minute Propeller Maintenance video.
Six strokes on my gun provides about 1/4 oz. of Aeroshell 6. I will stick with 6 strokes and very little leakage.
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Wayne G. |
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Mauledriver(at)nc.rr.com
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| Posted: Wed Apr 15, 2015 5:34 pm Post subject: Hartzell prop lubrication |
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Agreed. Very specific instructions from Hartzell - I just follow them.
Especially because they take the time to spell out not to treat it like
any other grease situation (pump until something comes out somewhere else).
Since I don't have a history greasing stuff, I don't seem to have a
problem following the instructions.
Bill
On 3/31/2015 4:41 PM, Kelly McMullen wrote:
| Quote: |
Award for most accurate response. Believe it or not you can over
lubricate even with a zerk removed. If any of the old grease has
thickened/hardened, it will restrict grease coming out the zerk hole.
I generally limit to 4 strokes on hand grease gun or start of grease
coming out removed zerk hole.
Also, use precisely whatever grease the label on the prop calls for,
whether that is Aeroshell 6, 22 or some other flavor. Unlike oils,
greases do use different thickening agents, and they are not all
compatible. Do not worry about not having enough grease...there is
plenty in the hub, unless you see it slinging out the seals at the
blade roots.
Kelly
A&P/IA
On 3/31/2015 10:28 AM, David Leikam wrote:
> Max number of pumps (I believe 6) OR excess coming out opposite zerk
> which ever happens first.
>
> Dave Leikam
>
>> On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com
>> <mailto:rv10pro(at)gmail.com>> wrote:
>>
>> Max number of pumps and excess coming out the opposing threads of
>> adjacent removed zerk. Per Hartzell S.L.
>>
>> On Mar 31, 2015 10:01 AM, "Bob Leffler" <rv(at)thelefflers.com
>> <mailto:rv(at)thelefflers.com>> wrote:
>>
>>
>> <mailto:rv(at)thelefflers.com>>
>>
>> I've just started my conditional and was reading the maintenance
>> procedures for the Hartzell prop. It cautions you not to over
>> lubricate.
>>
>> My naive question, is how can you tell when you have the proper
>> amount of lubricant? Is it when it starts oozing out the other
>> fitting?
>>
>> Thanks,
>>
>> Bob
>>
>> Sent from my iPhone
>>
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