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Old 08-31-2018, 07:46 AM   #1
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Safety wire for prop shaft bolts

I had my diver remover my prop, which required balancing/truing and slight reduction of pitch. We had to slide the prop shaft out to provide enough clearance for the prop puller. There was a safety wire connecting the two set bolts on the coupler. I failed to take a photo beforehand and the wire was in poor shape. I assume, of course, there is a proper way to secure the wire (I found this picture online) and I should use stainless steel wire.

Does this look correct? What size wire should I use? I found some .032 "Aviation Safety/Lock Wire" on eBay (1lb canister for $15.79).

P.S. My prop is a 16" Chinese made Hung-Shen HTP-3 heavy thrust. The prop shop said it was "all over the place" and very much needed balancing. Poor quality control in China I reckon. I am looking forward to taking Sherpa out and feeling the difference.
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Old 08-31-2018, 09:29 AM   #2
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Looks fine. You want to make it so if the bolt starts to unscrew the wire prevents it.
Too bad you need to buy that much wire. It's about 7 lifetimes worth.
Maybe you can mooch some from a friend
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Old 08-31-2018, 09:32 AM   #3
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West Marine sells a small baggie of SS lockwire for anchor shackles I believe.
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Old 08-31-2018, 10:46 AM   #4
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Safety wire pliers. Blue Point is the best, imho.
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Old 08-31-2018, 10:50 AM   #5
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Yes, that is correct. You can emulate safety wire pliers with some needle nose vise grips and slowly twist them so the wire is twisted. Safety wire pliers are great but have limited use in everyday work.
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Old 08-31-2018, 11:24 AM   #6
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Safety wire pliers are available at Harbor Freight and are cheap but you wont use them enough to wear them out.
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Old 08-31-2018, 11:46 AM   #7
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I appreciate everyone's response. I looked up a "how to use safety wire pliers" video on Youtube--neat tool! I could probably find some other use for it.

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Old 08-31-2018, 12:51 PM   #8
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Anchor shackles, rigging, crab pot repair, you name it. Buy the spool of wire.
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Old 08-31-2018, 01:52 PM   #9
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I installed safety wire on many thousands of
fasteners when working on jet engines in the Air Force. I have had a pair of safety wire pliers in my tool box for the past 40+ years and have used them many times over the years, not for just safety wire.
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