Question on past sheave battery failure

Started by SkiLiftsRock, Jul 03 2013 12:32 PM

You cannot reply to this topic

5 replies to this topic

#1 SkiLiftsRock

Established User

Industry II
299 Posts:

Interests:Industrial Engineering

Posted 03 July 2013 - 12:32 PM

I was reading NSAA Ski Lift Safety Fact Sheet (attached) and was looking at an incident table on page 4 and saw the one for Sierra Ski Ranch, CA on 4/4/93 and the cause was Sheave battery failure with 1 fatalities. Does anyone know what a Sheave battery failure is?

At that day, I believe there was a Yan high speed quad installed.

Thanks!

NSAA-Ski-Lift-Safety-Fact-Sheet-10-1-2012.pdf (581.78K)
Number of downloads: 40

---
https://youtube.com/c/LiftTech

Back to top

#2 Lift Dinosaur

Established User

Industry II
2,038 Posts:

Posted 03 July 2013 - 05:32 PM

A sheave battery is a sheave assembly is a sheave train.
The failure could have been a lead-in sheave failure; a deropement sensor failure; a misalignment problem, etc. etc.
I would assume there is more detail regarding the after-action report on this incident.
Dino

"Things turn out best for the people that make the best of the way things turn out." A.L.

Back to top

#3 Guest_Short Summers_*

Visiting Guest

Posted 28 August 2013 - 04:21 PM

The after incident investigation revealed noises reported at that tower for days prior. Ended up a hub failed at the end. Wheel dropped straight down.