Fifth wheel front leg pins
- Thread starter TonyL
- Start date
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If you have answers, please help by responding to the unanswered posts.
steveblonde
Well-known member
My hydraulic front legs failed to retrack one time due to a burnt out relay does that count? Lol pain the butt retacting them maually let me tell you- wrong size relay from the factory the tech told me
edjunior
Well-known member
Nope. Never had an issue with the pins in the 10 years I've had this 5th wheel.
Gary RV_Wizard
Site Team
I've seen motors fail to raise/lower them and screw threads strip, but haven't seen or heard of any catastrophic failures. Haven't seen any hydraulic jacks just collapse either, though it has probably happened somewhere. IMO it's one of those problems that is conceivable but such low probability that it isn't worth losing sleep over.
8Muddypaws
Well-known member
I had one of the pins shear. It was easy to replace.
If you're really worried about it carry some spares.
If you're really worried about it carry some spares.
Rene T
Site Team
What shear pins are we talking about? Is it the one right off the motor? When the op started talking, I thought he was talking about the pins in the legs that you remove when you initially manually extend the legs then the pin gets put back in. Maybe I misunderstood the question.
Rene T
Site Team
That?s what I thought. Thanks for clarifying that. We were going off another tangent and I was getting confused which doesn?t take much. I have never heard of those pins shearing. Some engineer here should be able to figure out what forces it would take to shear a pin in two places at the same time.TonyL said:
That's the trouble with staying in one place too long, you get to thinking stupid things. It was just that each pin is around 3/8" thick and the leg is actually supported in two places on the pin by about 1/8" thick steel (the boxing that holds the telescopic section. Refer bar cutters use a shearing action to cut the bar, so I was just pondering...??... :
Rene T
Site Team
So stop pondering. ;DTonyL said:so I was just pondering...??... :
8Muddypaws
Well-known member
If the pin gets cut into pieces it has become a shear pin regardless of what the engineer thought.
redcaddy51
Active member
When I brought this NTM trailer home the first time, I noticed that both spring pins were rusted solid. I left the trailer on the truck and went to my local Camping world in search of new ones. They wanted $78.95 for a pair. Later that night I ordered a pair of 3/8ths pin, clamp on units, (exactly like what I had on the trailer, without the rust) chrome plated fer $23.50, free shipping. Changed 'em out, Easy, no worries.
If it makes you feel any better, a 3/8ths mild steel pin, in shear, will support roughly 3 times the load you could generate, dropping the pinbox off the receiver. some, 5ers, 3 axles and upwards of 6 K pin weight use 7/16 pins, and that's overkill.
As has been said before, Chill, it's no big deal.
If it makes you feel any better, a 3/8ths mild steel pin, in shear, will support roughly 3 times the load you could generate, dropping the pinbox off the receiver. some, 5ers, 3 axles and upwards of 6 K pin weight use 7/16 pins, and that's overkill.
As has been said before, Chill, it's no big deal.
Rene T
Site Team
redcaddy51 said:
I think you misused the word "Spring Pin". These are spring pins:
https://www.napaonline.com/en/p/BK_7252617?cid=paidsearch_shopping_dcoe_google&gclid=EAIaIQobChMIkOWTlNLS6QIVmI3ICh2ZYQh_EAQYBSABEgI-x_D_BwE
They are really called Safety Pins:
https://www.walmart.com/ip/Curt-Manufacturing-5-16-Inch-Safety-Pin-3-Inch-Pin-Length-Packaged/792213599?wmlspartner=wlpa&selectedSellerId=101002903&adid=22222222227000000000&wl0=&wl1=g&wl2=c&wl3=42423897272&wl4=aud-430887228898
la-51320962143&wl5=9058138&wl6=&wl7=&wl8=&wl9=pla&wl10=136582778&wl11=online&wl12=792213599&veh=sem&gclid=EAIaIQobChMIk9TN4NLS6QIVlQiICR1NtQM9EAQYBSABEgI80PD_BwE
redcaddy51
Active member
Say after me. I will not feed the troll, I will not feed the troll, I will not feed the troll...
Sorry, Paul in floriduh
Sorry, Paul in floriduh
