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rleffler
Joined: 05 Nov 2006
Posts: 680
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 Posted: Tue Mar 31, 2015 8:58 am Post subject: Hartzell prop lubrication |
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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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rv10pro(at)gmail.com
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| Posted: Tue Mar 31, 2015 9:07 am Post subject: Hartzell prop lubrication |
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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 (rv(at)thelefflers.com)> wrote:[quote]--> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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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rv10flyer(at)live.com
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| Posted: Tue Mar 31, 2015 9:28 am Post subject: Hartzell prop lubrication |
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Yes, put I usually pump out some old the dirty grease while I'm at it. I
think over lubricate would apply if you did not remove the bottom zerk and
pumped up the prop. I cant see over lubricating a prop that has room to ooze
out.
--
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arplnplt(at)gmail.com
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| Posted: Tue Mar 31, 2015 9:31 am Post subject: Hartzell prop lubrication |
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Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam | Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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 =========== -List" target="_blank">http://www.matronics.com/Navigator?RV10-List =========== FORUMS - _blank">http://forums.matronics.com =========== b Site - -Matt Dralle, List Admin. target="_blank">http://www.matronics.com/contribution ===========
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[quote][b]
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jesse(at)saintaviation.co
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| Posted: Tue Mar 31, 2015 9:45 am Post subject: Hartzell prop lubrication |
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Bob,
I always remove the fitting on the leading edge and pump from the trailing edge until i see movement of grease at the open hole. I then put the plug back in and do the other blade. Some say just 2 pumps per fitting, but I don't know if that is without removing the fittings or with them out.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
www.mavericklsa.com
C: 352-427-0285
O: 352-465-4545
F: 815-377-3694
Sent from my iPhone
| Quote: | On Mar 31, 2015, at 12:54 PM, Bob Leffler <rv(at)thelefflers.com> wrote:
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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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Tue Mar 31, 2015 12:45 pm Post subject: Hartzell prop lubrication |
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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:
| Quote: | 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
>
> ===========
> -List" target="_blank">http://www.matronics.com/Navigator?RV10-List
> ===========
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> -Matt Dralle, List Admin.
> target="_blank">http://www.matronics.com/contribution
> ===========
>
> *
> *
*
*
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flying-nut(at)cfl.rr.com
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| Posted: Tue Mar 31, 2015 12:48 pm Post subject: Hartzell prop lubrication |
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I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, David Leikam wrote:
[quote] Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam | Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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 =========== -List" target="_blank">http://www.matronics.com/Navigator?RV10-List =========== FORUMS - _blank">http://forums.matronics.com =========== b Site - -Matt Dralle, List Admin. target="_blank">http://www.matronics.com/contribution ===========
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[b]
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Tue Mar 31, 2015 1:03 pm Post subject: Hartzell prop lubrication |
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You don't know that you haven't delivered an excess. You do NOT need the
cavity full. The prop really only needs 1-2 pumps of grease per blade.
The extra pumps are for those that may have substandard grease gun, to
give you a safe range without excess.
Excess will cause grease to get past the blade seals and may cause them
to fail. Based on both Hartzell rep and pubs, and prop overhaul shop.
On 3/31/2015 1:43 PM, Linn Walters wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no
excess ..... and pumps aren't created equal. Anybody know why you'd
quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, 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
>>
>> ===========
>> -List" target="_blank">http://www.matronics.com/Navigator?RV10-List
>> ===========
>> FORUMS -
>> _blank">http://forums.matronics.com
>> ===========
>> b Site -
>> -Matt Dralle, List Admin.
>> target="_blank">http://www.matronics.com/contribution
>> ===========
>>
>>
>>
>> *
>>
>>
>> *
>
> *
> *
*
*
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD |
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Tue Mar 31, 2015 1:09 pm Post subject: Hartzell prop lubrication |
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I think that's the question I was getting at. Until it oozes out the other side, you really have no idea the true quantity of grease in the hub.
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.
Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
[quote] I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam | Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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 =========== -List" target="_blank">http://www.matronics.com/Navigator?RV10-List =========== FORUMS - _blank">http://forums.matronics.com =========== b Site - -Matt Dralle, List Admin. target="_blank">http://www.matronics.com/contribution ===========
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[b]
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Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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rv10rob(at)gmail.com
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| Posted: Tue Mar 31, 2015 1:31 pm Post subject: Hartzell prop lubrication |
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When are people seeing grease coming out the other side? I've done 3 annuals now, doing 6 pumps per blade each time, and I haven't seen any come out the other side yet.
On Tue, Mar 31, 2015 at 2:06 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
| Quote: | I think that's the question I was getting at. Â Â Until it oozes out the other side, you really have no idea the true quantity of grease in the hub. Â
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.
Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam
| Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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
===========
-List" target="_blank">http://www.matronics.com/Navigator?RV10-List
===========
FORUMS -
_blank">http://forums.matronics.com
===========
b Site -
     -Matt Dralle, List Admin.
target="_blank">http://www.matronics.com/contribution
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lass="">
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3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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RV-10 Flying since March 2011
Woodinville, WA
http://kochman.net/N819K
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cooprv7(at)yahoo.com
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| Posted: Tue Mar 31, 2015 2:24 pm Post subject: Hartzell prop lubrication |
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One important tip is to make sure you clean out the exit hole per Hartzell’s instructions, piece of safety wire works well. I didn’t do this at first but after pumping some grease in I cleaned it out better and once the dried bit got out of the way some came out under pressure. As long as you limit the number of pumps it’s probably not a huge deal, but if you are looking to see some exit then it’s critical otherwise you’ll pump too much in and it will find a way out in places you don’t want it to.
Marcus
On Mar 31, 2015, at 5:28 PM, Rob Kochman <rv10rob(at)gmail.com (rv10rob(at)gmail.com)> wrote:
When are people seeing grease coming out the other side? I've done 3 annuals now, doing 6 pumps per blade each time, and I haven't seen any come out the other side yet.
On Tue, Mar 31, 2015 at 2:06 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote: | Quote: | I think that's the question I was getting at. Until it oozes out the other side, you really have no idea the true quantity of grease in the hub.
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full??? Linn ..... working on a Sam James plenum On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam | Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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 =========== -List" target="_blank">http://www.matronics.com/Navigator?RV10-List =========== FORUMS - _blank">http://forums.matronics.com =========== b Site - -Matt Dralle, List Admin. target="_blank">http://www.matronics.com/contribution ===========
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lass="">
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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-- Rob KochmanRV-10 Flying since March 2011
Woodinville, WA
http://kochman.net/N819K
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rv10flyer(at)live.com
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| Posted: Tue Mar 31, 2015 2:28 pm Post subject: Hartzell prop lubrication |
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I with Linn- unless I can see grease, I would have no idea how much grease is actually in the hub. I get it, after this thread, that 6 pumps may be enough grease for the what Hartzell requires, but I prefer to know there is grease coming out and that I am not short on grease (aka- I thought I pumped it 6 times but the amount of grease that came out was minimal for those pumps)
to answer your question Rob- every annual. What I find interesting is that although I fill the hub, every year I seem to need 6 or more pumps to get the grease to show, which tells me I use more grease each year than I re-pump, hence my going until I see grease come out and sometimes, as mentioned before, when its really dirty, until I see cleaner grease.
3 years with no leaks, so I am happy knowing I have grease in the hub and that it cleaner each year, than just 6 pumps.
From: Rob Kochman (rv10rob(at)gmail.com)
Sent: Tuesday, March 31, 2015 2:28 PM
To: rv10-list (rv10-list(at)matronics.com)
Subject: Re: Hartzell prop lubrication
When are people seeing grease coming out the other side? I've done 3 annuals now, doing 6 pumps per blade each time, and I haven't seen any come out the other side yet.
On Tue, Mar 31, 2015 at 2:06 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
| Quote: | I think that's the question I was getting at. Until it oozes out the other side, you really have no idea the true quantity of grease in the hub.
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.
Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam
| Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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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Woodinville, WA
http://kochman.net/N819K
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davidsoutpost(at)comcast.
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| Posted: Tue Mar 31, 2015 2:33 pm Post subject: Hartzell prop lubrication |
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The manual for greasing the hub does not make a whole lot of sense IMHO. If the hub is not leaking grease, as it should not do, it will eventually fill with grease and after a few times servicing the hub will fill up and ooze out the the removed zerk fitting hole. I pumped until I could observe movement of grease inside the open zerk hole. Maybe I am wrong but I THINK the hub will eventually fill up eventually?
David Clifford
N959RV
From: "Rob Kochman" <rv10rob(at)gmail.com>
To: "rv10-list" <rv10-list(at)matronics.com>
Sent: Tuesday, March 31, 2015 5:28:09 PM
Subject: Re: Hartzell prop lubrication
When are people seeing grease coming out the other side? I've done 3 annuals now, doing 6 pumps per blade each time, and I haven't seen any come out the other side yet.
On Tue, Mar 31, 2015 at 2:06 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
| Quote: | I think that's the question I was getting at. Until it oozes out the other side, you really have no idea the true quantity of grease in the hub.
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.
Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full???
Linn ..... working on a Sam James plenum
On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam
| Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote:
| Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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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Rob Kochman
RV-10 Flying since March 2011
Woodinville, WA
http://kochman.net/N819K
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arplnplt(at)gmail.com
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| Posted: Tue Mar 31, 2015 3:05 pm Post subject: Hartzell prop lubrication |
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I just finished my annual and the prop hub took exactly 4 pumps Aeroshell 6 each zerk until grease started to poke out the opposite zerk.Just doing what the manual says. No problems in 375 hours.
Dave Leikam
| Quote: | On Mar 31, 2015, at 5:30 PM, David Clifford <davidsoutpost(at)comcast.net (davidsoutpost(at)comcast.net)> wrote:
The manual for greasing the hub does not make a whole lot of sense IMHO. If the hub is not leaking grease, as it should not do, it will eventually fill with grease and after a few times servicing the hub will fill up and ooze out the the removed zerk fitting hole. I pumped until I could observe movement of grease inside the open zerk hole. Maybe I am wrong but I THINK the hub will eventually fill up eventually?
David Clifford
N959RV
From: "Rob Kochman" <rv10rob(at)gmail.com (rv10rob(at)gmail.com)>To: "rv10-list" <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>Sent: Tuesday, March 31, 2015 5:28:09 PMSubject: Re: Hartzell prop lubrication
When are people seeing grease coming out the other side? I've done 3 annuals now, doing 6 pumps per blade each time, and I haven't seen any come out the other side yet.
On Tue, Mar 31, 2015 at 2:06 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote: | Quote: | I think that's the question I was getting at. Until it oozes out the other side, you really have no idea the true quantity of grease in the hub.
It does make sense that you can't over fill with the other fitting off, but then the warning seems a little silly.
Sent from my iPad
On Mar 31, 2015, at 4:43 PM, Linn Walters <flying-nut(at)cfl.rr.com (flying-nut(at)cfl.rr.com)> wrote:
| Quote: | I fail to understand why you would stop at 6? pumps when there's no excess ..... and pumps aren't created equal. Anybody know why you'd quit pumping before the cavity is full??? Linn ..... working on a Sam James plenum On 3/31/2015 1:28 PM, David Leikam wrote:
| Quote: | Max number of pumps (I believe 6) OR excess coming out opposite zerk which ever happens first.
Dave Leikam | Quote: | On Mar 31, 2015, at 12:04 PM, John Cox <rv10pro(at)gmail.com (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 (rv(at)thelefflers.com)> wrote: | Quote: | --> RV10-List message posted by: Bob Leffler <rv(at)thelefflers.com (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 =========== -List" target="_blank">http://www.matronics.com/Navigator?RV10-List =========== FORUMS - _blank">http://forums.matronics.com =========== b Site - -Matt Dralle, List Admin. target="_blank">http://www.matronics.com/contribution ===========
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Woodinville, WA
http://kochman.net/N819K
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Ron B.
Joined: 17 Feb 2009
Posts: 103
Location: Nova Scotia
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| Posted: Thu Apr 02, 2015 9:01 pm Post subject: Re: Hartzell prop lubrication |
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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.
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Fri Apr 03, 2015 9:05 am Post subject: Hartzell prop lubrication |
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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:
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aerosport1
Joined: 07 Nov 2007
Posts: 231
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| Posted: Fri Apr 03, 2015 9:49 am Post subject: Hartzell prop lubrication |
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I had some grease or something on my windshield last year after my annual and going to Oshkosh. Stopped at the hartzell booth to ask them their thoughts. They were very
Responsive and concerned. I was then introduced to Scott Foster.
Talked to him he got my contact info
And called me the week after Oshkosh. They wanted to inspect my prop. Scott came up the next week and we removed the spinner
Looked for leaks and determined a zerk fitting was a little loose. And leaking. Tighten it up
Then we discussed the amount of grease. I had told him I pumped until
Some came out. He said that 2-3 pumps no more. I pumped way more than that. The good news my prop was ok and he
Said everything looked great for almost 500 hrs. But he did say no more than 2 pumps and told me not to grease mine at the next annual.
Great customer service and Scott is great.
Then I took him for a ride in the RV-10. He was impressed with the performance and loved the RV-10.
He was drinking the the RV-10 koolaid and loving it.
Geoff
Sent from my iPhone
Geoff Combs
Aerosport Modeling & Design
| Quote: | On Apr 3, 2015, at 1:01 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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Geoff Combs
RV-10 QB N829GW
Flying 500 hrs
40033 |
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rv10flyer(at)live.com
Guest
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| Posted: Fri Apr 03, 2015 10:27 am Post subject: Hartzell prop lubrication |
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Done the theory, no leakage thus far!
However, I appreciate this thread and will stick to the manual moving
forward. I always worried that I didn’t have enough grease, seems that that
is normal and not to worry about!
Thx
--
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Fri Apr 03, 2015 10:58 am Post subject: Hartzell prop lubrication |
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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
| Quote: | On Apr 3, 2015, at 1:44 PM, g.combs <g.combs(at)aerosportmodeling.com> wrote:
he
|
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N410BL - Phase I
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gengrumpy
Joined: 07 May 2013
Posts: 131
Location: Tullahoma, TN
|
| Posted: Fri Apr 03, 2015 11:32 am Post subject: Hartzell prop lubrication |
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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
| Quote: | 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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