Luger Steel Lanyard 'Staple'

G.T. · 05-03-2017, 04:10 PM

Sometimes, maybe most times, nothing is ever as it seems! Once a part like a lanyard ring is installed, it is probably never given a second thought buy the manufacture, as they come to realize, even the smallest amount of press fit, riveting, swaging or upsetting will far exceed the demands that the loop will ever be subject to? In essence, even a thousands of upset, will make the loop permanently locked in place...
I remember back in my first life as a boat motor mechanic, we had a 140 HP outboard throw a rod and it caused the flywheel to spin on the keyed taper crankshaft end?... We broke every puller we had, and then some we borrowed and the flywheel would not budge... We ended up at a Catapillar (sp.) dealership with one of the biggest pullers and a 1" impact wrench driving all home, with no apparent success... So, we just stood there and stared at the block/puller assembly on the tailgate of our shop truck. All of a sudden, BOOOOOM!!! ....

.....The flywheel and puller blew off the block and flew a considerable distance up in the air... it seemed like a few feet, but was probably just enough to clear the crank, anyway, it was off and on the ground... As I inspected the flywheel and hardened crankshaft the key was sheared like butter, and the taper on the shaft had a barely visible upset ring of maybe one to three thousands high and looked like a scratch, and this held all those tons of force!!! It was not lost on me, how much weight even a thousands can hold... It certainly can hold a couple of pounds at the end of a flexible rope?...

... best to all, til...lat'r....GT...

05-03-2017, 04:10 PM	#37
G.T. Lifer Lifetime Forum Patron Join Date: Jun 2002 Location: Chandler Arizona Posts: 3,522 Thanks: 1,321 Thanked 3,706 Times in 1,011 Posts	One last observation! Sometimes, maybe most times, nothing is ever as it seems! Once a part like a lanyard ring is installed, it is probably never given a second thought buy the manufacture, as they come to realize, even the smallest amount of press fit, riveting, swaging or upsetting will far exceed the demands that the loop will ever be subject to? In essence, even a thousands of upset, will make the loop permanently locked in place... I remember back in my first life as a boat motor mechanic, we had a 140 HP outboard throw a rod and it caused the flywheel to spin on the keyed taper crankshaft end?... We broke every puller we had, and then some we borrowed and the flywheel would not budge... We ended up at a Catapillar (sp.) dealership with one of the biggest pullers and a 1" impact wrench driving all home, with no apparent success... So, we just stood there and stared at the block/puller assembly on the tailgate of our shop truck. All of a sudden, BOOOOOM!!! .........The flywheel and puller blew off the block and flew a considerable distance up in the air... it seemed like a few feet, but was probably just enough to clear the crank, anyway, it was off and on the ground... As I inspected the flywheel and hardened crankshaft the key was sheared like butter, and the taper on the shaft had a barely visible upset ring of maybe one to three thousands high and looked like a scratch, and this held all those tons of force!!! It was not lost on me, how much weight even a thousands can hold... It certainly can hold a couple of pounds at the end of a flexible rope?...... best to all, til...lat'r....GT...