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  #101  
Old 08-13-2018, 08:50 AM
John-G John-G is offline
 
Join Date: Jan 2012
Location: Northeast Ohio
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Quote:
Originally Posted by rjtjrt View Post
Re Nord-Lock washers.
Please excuse a stupid question, but how many of the Sensenich specific 85397-1 Nord-Lock washers are requred if I replace the hub front plate with a new D1 version hub cover half?
I want to get all parts I may need for the maintence organisation Iwill use before we start.
I am not the builder of my 12, so must use a licence shop for maintenance.
RJTJRT - To answer your question ... there are six bolts that sandwich the two prop blades between the prop hubs and each bolt uses a Nord-Lock washer.
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  #102  
Old 08-13-2018, 03:59 PM
rgmwa rgmwa is offline
 
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Location: Perth, Western Australia
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Quote:
Originally Posted by rjtjrt View Post
Re Nord-Lock washers.
Please excuse a stupid question, but how many of the Sensenich specific 85397-1 Nord-Lock washers are requred if I replace the hub front plate with a new D1 version hub cover half?
I want to get all parts I may need for the maintence organisation Iwill use before we start.
I am not the builder of my 12, so must use a licence shop for maintenance.
John, check your PM's
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  #103  
Old 08-13-2018, 05:47 PM
rjtjrt rjtjrt is offline
 
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Jim, John and Rob
Thanks for the help. Much appreciated.
And Rob, PM sent.
John
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  #104  
Old 08-24-2018, 04:37 AM
todehnal todehnal is offline
 
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Location: Kentucky Lakes area in KY
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Quote:
Originally Posted by Piper J3 View Post
Sure, I just did this. Call Sensenich and place order over the phone. They may give you a hard time about mismatching SN's and such but insist that they send you latest design hub. I received Rev "F" hub and set pitch manually with digital level per Van's instruction. I entered SN's for both halves of prop hub and both blades in my prop logbook stating compliance with latest SB and installed per Sensenich instructions. Now I feel good about integrity of prop.
I called Sensenich yesterday and tried to order an E or F hub, front half only. I stated that I was aware of the fact that I would be limited to protractor pitch setting only (no center hub or guide pins). I was told by Don Rowell, President, that I had two choices; either order a D1 hub for $195, or send in my complete prop and hub for blade modification and receive the E or F hub at a cost of $545.

So, how were you able to order the new style front half hub? Who did you talk to, what was your cost, and what argument did you use to get this done? I totally agree with you that this new design appears to be much more robust in the cracking areas, and this is the route that I would like to take...................Tom
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Last edited by todehnal : 08-24-2018 at 04:40 AM.
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  #105  
Old 08-24-2018, 06:01 AM
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Piper J3 Piper J3 is offline
 
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Tom

I spoke with Steve Boser, Plant City, FL. At that time he was handling the hub SB. I told him I was not going to install another front hub with large pitch change cylinder when Sensenich had a redesign available which eliminated the large central hole. I suspect my being vocal in this thread had something to do with them sending me an "F" front hub. When I called to place order he recognized my name from this forum thread and we spoke at length about the issue.

I realize they don't want to separate hubs matched by serial number, but from my end, I don't want to do in-flight product testing. Cracked prop hub, even with redundant design feature to prevent separation, is not to be taken lightly...
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  #106  
Old 08-24-2018, 08:30 AM
todehnal todehnal is offline
 
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Thanks Jim. I'll give this another try.................Tom
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  #107  
Old 08-24-2018, 09:05 AM
n74846 n74846 is offline
 
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I called for an update last week and was told replacements would not become available until September. Are they now selling the replacements?
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  #108  
Old 08-25-2018, 04:57 AM
todehnal todehnal is offline
 
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Originally Posted by n74846 View Post
I called for an update last week and was told replacements would not become available until September. Are they now selling the replacements?
I guess they don't have stock at this time. They are accepting order forms, which is posted on there support site, and they will fill them in the order received with one exception. If you have a cracked hub, you go to the front of the line, but mid September is the date that I was given also. I think that is the start time for hub deliveries............Tom
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  #109  
Old 08-25-2018, 07:07 AM
n74846 n74846 is offline
 
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Thanks Tom. That confirms my understanding as well.
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  #110  
Old 08-25-2018, 07:50 AM
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Walt Walt is offline
 
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This can't be helping the operation!

FAA Revokes Certificate Of Sensenich Repair Station
https://www.avweb.com/eletter/archiv...t=email#231418
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