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Hartzell service bulletin, plug to replace grease fitting

 
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TimRVator(at)comcast.net
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PostPosted: Sun Oct 20, 2019 7:13 am    Post subject: Hartzell service bulletin, plug to replace grease fitting Reply with quote

Hartzell has noted that grease zerks are sometimes seizing (and
breaking) when they are removed for the hub grease process.  This 2016
Service Instruction introduces a plug to replace the zerk that is
removed every year (one plug per side).

https://hartzellprop.com/wp-content/uploads/HC-SL-61-354-R00-W.pdf

Hartzell's 2018 price sheet lists them as $0.74 each.  I've not tried to
order them myself - I bought a couple from a local A&P who had ordered
several.

https://hartzellprop.com/wp-content/uploads/2018-Price-List-Orig.pdf

--
Tim Lewis -- HEF (Manassas, VA)
CFI, A&P
RV-6A N47TD -- 1104 hrs - sold
RV-10 N31TD -- 1200 hrs


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Kelly McMullen



Joined: 16 Apr 2008
Posts: 1137
Location: Sun Lakes AZ

PostPosted: Sun Oct 20, 2019 7:48 am    Post subject: Hartzell service bulletin, plug to replace grease fitting Reply with quote

Curious. I can't imagine why the zerks would seize, given they are threaded back into grease, except for the person doing the servicing using their calibrated elbow for a torque wrench. Never had a problem with the zerks in the 18 years I had a Hartzell prop.
Also tend to believe that those zerks and plugs are standard FAA/PMA Autozone parts. Not sure why the plugs would be any less likely to seize, unless they are made of a metal compatible with the forged aluminum of the prop hub. Maybe I should do a little experimenting with a red tag Hartzell hub I use as a big paperweight.

Quote:
Sent from my TRS-80 Model 100



On Sun, Oct 20, 2019 at 8:17 AM Tim Lewis <TimRVator(at)comcast.net (TimRVator(at)comcast.net)> wrote:

Quote:
--> RV10-List message posted by: Tim Lewis <TimRVator(at)comcast.net (TimRVator(at)comcast.net)>

Hartzell has noted that grease zerks are sometimes seizing (and
breaking) when they are removed for the hub grease process.  This 2016
Service Instruction introduces a plug to replace the zerk that is
removed every year (one plug per side).

https://hartzellprop.com/wp-content/uploads/HC-SL-61-354-R00-W.pdf

Hartzell's 2018 price sheet lists them as $0.74 each.  I've not tried to
order them myself - I bought a couple from a local A&P who had ordered
several.

https://hartzellprop.com/wp-content/uploads/2018-Price-List-Orig.pdf

--
Tim Lewis -- HEF (Manassas, VA)
CFI, A&P
RV-6A N47TD -- 1104 hrs - sold
RV-10 N31TD -- 1200 hrs



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Bob Turner



Joined: 03 Jan 2009
Posts: 846
Location: Castro Valley, CA

PostPosted: Sun Oct 20, 2019 5:12 pm    Post subject: Re: Hartzell service bulletin, plug to replace grease fittin Reply with quote

Well, these parts are a bargain. I see they want $40 for a blank logbook!

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TimRVator(at)comcast.net
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PostPosted: Mon Oct 21, 2019 6:19 am    Post subject: Hartzell service bulletin, plug to replace grease fitting Reply with quote

Hartzell has noted that grease zerks are sometimes seizing (and
breaking) when they are removed for the hub grease process.  This 2016
Service Instruction introduces a plug to replace the zerk that is
removed every year (one plug per side).  The plugs are stronger than the
zerk, less likely to break off.

https://hartzellprop.com/wp-content/uploads/HC-SL-61-354-R00-W.pdf

Hartzell's 2018 price sheet lists them as $0.74 each.  I've not tried to
order them myself - I bought a couple from a local A&P who had ordered
several.

https://hartzellprop.com/wp-content/uploads/2018-Price-List-Orig.pdf

--
Tim Lewis -- HEF (Manassas, VA)
CFI, A&P
RV-6A N47TD -- 1104 hrs - sold
RV-10 N31TD -- 1200 hrs


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List
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