Nordlock vs Safety Wire

[rv8ch]

Originally Posted by vic syracuse

We have been seeing the use of nordlocks on props, brake calipers, etc for quite a while now, and have been using them ourselves on brake calipers regularly. Saves time and seems to be very secure.

Vic

I have not yet tested them, and they look great. Where's the best place to buy them? The few places I've seen are kind of expensive...

[jacoby]

Originally Posted by rv8ch

I have not yet tested them, and they look great. Where's the best place to buy them? The few places I've seen are kind of expensive...

ACS or Amazon run about the same price (roughly $1.00-$1.50/each after shipping)

[Ironflight]

Originally Posted by vic syracuse

We have been seeing the use of nordlocks on props, brake calipers, etc for quite a while now, and have been using them ourselves on brake calipers regularly. Saves time and seems to be very secure.

Vic

Have you tried them on the wheel pant axle bolt? That would speed up wheel pant R&R .... maybe I need to buy a few Nordlocks and give them a try.

Paul

[Thermos]

A side question - how many times can Nordlocks be reused, if at all? The manufacturer's website says they can as long as some resistance is felt when removing the associated fastener. OTOH, Matco recommends replacing them after one use on their brake calipers.

??

Dave

[agent4573]

We reuse Nordlocks pretty routinely on the vibe tables at work. The locking design is implemented by the angle of the teeth, so unless you severely mangle the teeth, they'll still provide a locking function. They deform slightly during install/uninstall, but not enough to really affect how they work.

[Pilot8]

What is Hartzell's position on nordlocks?

[PerfTech]

Originally Posted by erich weaver

Safety wiring my Whirlwind 200RV prop is a pain and I dread it. Is there any reason why Nordlock washers couldn’t be substituted? The promotional YouTube videos indicate they perform as good or better than safety wire in vibration tests and would certainly save time and aggravation.

Erich

....I agree about it being a real pain! Especially with this particular propeller, as it appears the
relief cuts milled in the hub, where the nuts go, aren't deep enough to allow clearance for the
safety wire. We have installed many of these, and I now do this simple modification to the
nuts by machining a clearance groove a bit larger than the safety wire (see pics) prior to the
first installation. This can save you many hours of frustration, and your finish job will be neater
and cleaner, I promise. Thanks, Allan--
.

.

[koupster]

Originally Posted by Ironflight

Have you tried them on the wheel pant axle bolt? That would speed up wheel pant R&R .... maybe I need to buy a few Nordlocks and give them a try.

Paul

I put Nordlocks on the wheel pant axle bolts last time around. I can lie on my side and safety wire the brake caliper bolts rather easily, the Hartzell prop bolts are a minor aggravation, but the wheel pant axle bolts have gotten ever more challenging for my knees and back.

[vic syracuse]

Originally Posted by Ironflight

Have you tried them on the wheel pant axle bolt? That would speed up wheel pant R&R .... maybe I need to buy a few Nordlocks and give them a try.

Paul

Yes, all the time. Works much better. Haven't seen any come loose.

Vic

[Check6]

YES! On brakes and wheel pant. Worth every penny. I hate saftey wiring and my tech counselor told me to go to them. Been flying with them for several years now and it makes it so much easier to really inspect and replace as necessary my brakes. Now if I could just find a really easy quick way to pull the bottom cowl to just look more often.