41 replies to this topic

[Duck]

Dr Frankenstein, on Dec 23 2003, 11:12 AM, said:

LiftMech said:

I believe every 10 meters of height you want to add diameter to the tubes

12 meters.
<{POST_SNAPBACK}>

Who dictates that? Isn't it up to the designer of the specific component if he or she wants to change the diameter or wall thickness of a piece of tube?

-Iain

[Aussierob]

I believe tower tube lengths are governed by what you can transport on a semi trailer.

[Snoqualmie guy]

I heard that at Snoqualmie, Central Express had all of its grips seized by the inspecters. So they had to replace all or most of them because they didn't replace them on their own. Makes you feel really safe right? I think it happened three years ago if I'm right.

[EagleAce]

Aussierob, on Jun 19 2005, 08:37 PM, said:

I believe tower tube lengths are governed by what you can transport on a semi trailer.

yup. I'll look it up and get back to you. Has gto do with bridge laws--you're only allowed a certain max distance between the kingpin and center of the tandem axle on the trailer for a given weight.

[tahoeistruckin]

floridaskier, on Dec 19 2003, 11:25 AM, said:

How often do lifts get inspected?

Daily and yearly. Lift Maint. has it's set of checks they perform each morning before powering up. and then the lift ops has a set of checks they perform each day before allowing public to ride.
I know from working in Utah, every lift there is / suppose to be inspected each year by UDOT'S Tramway safty board. Then resort's insurance companies also do a yearly inspection, not only look at the lift, but talk to operators and lift maint. to ensure they know what they are doing.

[tahoeistruckin]

EagleAce, on Oct 12 2007, 11:11 PM, said:

yup. I'll look it up and get back to you. Has gto do with bridge laws--you're only allowed a certain max distance between the kingpin and center of the tandem axle on the trailer for a given weight.

you can have up to 12,000 lbs on the steer tires ( with my truck, i can go up to 13,000 , cause the fuel tanks are wieghed on the steers. The more fuel you use the less fuel weight you have. )
34,000 on the drives
34,000 on tandems
80,000 gross.

[liftmech]

Snoqualmie guy, on Oct 12 2007, 08:37 PM, said:

I heard that at Snoqualmie, Central Express had all of its grips seized by the inspecters. So they had to replace all or most of them because they didn't replace them on their own. Makes you feel really safe right? I think it happened three years ago if I'm right.

Please elaborate. All the grips were seized by inspectors? What for? Did the inspectors physically remove each and every grip from the chair head, leaving carriers scattered all over? I have a hard time believing this statement. I also don't understand 'they had to replace them because they didn't replace them'. That sentence doesn't make any sense.

[Snoqualmie guy]

Sorry I just heard it from a reliable but not very discriptive source.

[liftmech]

Still curious...

[Kicking Horse]

Snoqualmie guy, on Oct 13 2007, 10:12 AM, said:

Sorry I just heard it from a reliable but not very discriptive source.

One thing that I have learned.

You need to make damn sure you can back everything up that you say here. If you can't back it up dont say it. It will save you and everyone a headache.

[Snoqualmie guy]

Sorry for posting...

[Peter]

In Washington lifts are inspected by the Parks and Recreation Commission I believe. They are given yearly inspections and must have a current license to operate. I would think that the most likely situation if a lift failed inspection would to simply not renew a license. I don't see why anything would be "seized."

[mikest2]

Skier, on Oct 13 2007, 07:39 PM, said:

In Washington lifts are inspected by the Parks and Recreation Commission I believe. They are given yearly inspections and must have a current license to operate. I would think that the most likely situation if a lift failed inspection would to simply not renew a license. I don't see why anything would be "seized."

Well...............I know how to seize a rope:

[Snoqualmie guy]

"Seized" could be the wrong word, thats just what I heard from this guy. Sorry for the misunderstanding

[liftmech]

Skier's right, if there was an issue the license wouldn't have been renewed. I'm not trying to pick on you, Jeff, I just want to know where you got your story from so I can confirm (or deny) what happened there.

Mike- I once learned about seizing a wire rope with a torch set too, 'course then you've got to cut the end off if you want to splice into anything.

[lastchair_44]

mikest2, on Oct 13 2007, 08:26 PM, said:

Well...............I know how to seize a rope:

Seizing_wire_rop1.doc

....I thought I did???? Really though, the clamp broke as I was finishing the cut on this section of track rope. It looks like it's happened to the swiss guys a couple times as well so I dont' feel that bad. I was pretty much all the way through with the exception of the outter "Z" wires. Going back to try again today. (Kinda crappy picture due to cell phone cam)

[Snoqualmie guy]

Liftmech, I heard it from a guy while rideing up the lift there, he lives up there year round and manages the condo at Summit Central, he knows whats going on and so I took the story as the truth.

[liftmech]

I see. I'd take anything not from the lift maintenance department with a large grain of salt, were I you.

[Carl]

lastchair_44, on Oct 14 2007, 10:22 AM, said:

....I thought I did???? Really though, the clamp broke as I was finishing the cut on this section of track rope. It looks like it's happened to the swiss guys a couple times as well so I dont' feel that bad. I was pretty much all the way through with the exception of the outter "Z" wires. Going back to try again today.

Been there, done that......

Carl

[LSS]

lastchair_44, on Oct 14 2007, 08:22 AM, said:

....I thought I did???? Really though, the clamp broke as I was finishing the cut on this section of track rope. It looks like it's happened to the swiss guys a couple times as well so I dont' feel that bad. I was pretty much all the way through with the exception of the outter "Z" wires. Going back to try again today. (Kinda crappy picture due to cell phone cam)

There is, or was a video of the track cable from the Vail Lionshead Gondola being cut as it lays on the ground. (Dead rope, not under any tension.) This is the track cable involved in the incident in 1975/76. They were using a cut off wheel. The z-locked cable was clamped and tied down to concrete blocks on both sides of the cut. At the last nip through the z-lock the thing took off and blasted the clamps off. The concrete blocks spun out with the unraveling rope. The surrounding ground was dug up etc. Fortunately the the guy cutting was on the "right" side of the rope so it spun away from him. Interesting.
Also, as the guy started to cut the rope he had the cut off wheel sparks shooting on his pant leg. About half way through, you see his hand come down to beat out the flames below his knee!