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Reverse Operation


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#61 Cameron

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Posted 15 March 2005 - 08:32 AM

I'm just telling you what I saw and heard. While I can't be sure that the reason is correct, the lift definitely was running backwards (I saw that with my own eyes!). The lift does start at the bottom of the resort, so maybe it's backwards to stop people from hopping on (you can walk right up to it at night).

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#62 highspeedquad

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Posted 15 March 2005 - 03:00 PM

What reason would there be to load the lift?
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#63 Allan

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Posted 15 March 2005 - 03:34 PM

My guess would be to go skiing at night for free.
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#64 highspeedquad

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Posted 15 March 2005 - 05:30 PM

Ah, unless a hotel is up there (in which I guess they would provide acess) night skiing seems like the most likely possibility. Might be a little dark though, better bring a flashlight.
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#65 floridaskier

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Posted 15 March 2005 - 05:37 PM

If they could, you know some drunk or stoned high schoolers would try to catch a free ride up at night wearing miner's lamps (or not). Then one of them would get hurt, and it would be the resort's fault, they would get sued, etc.
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#66 Bill

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Posted 15 March 2005 - 06:00 PM

Plus its running really slow, so it would be tough on the body if its below freezing.
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#67 pete643

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Posted 18 March 2005 - 11:55 AM

Remembering my days as a early 20 something, we would think that it would be cool to ride it up backwards after we got drunk. Wouldn't matter if it was running slow, it would just make it easier to hop on backwards!

#68 lift_electrical

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Posted 30 March 2005 - 12:18 PM

All the Doppelmayr detachs I have worked on run in reverse. The speed is limited to 1 meter. There are ways to make the lift run 5 meters in reverse.........There are several reasons for reverse run. One is to have a grip that has failed a grip force check run in reverse back into the station and unload the carrier. Another would be loading chairs back on the line when using a dead end park rail as mentioned several times earlier. Last it is an easy way when doing your preseason testing to check the limit switch that is in the enclosure where the bullwheel tach is mounted. Run the lift in reverse, switch to forward and try and start the lift. You should not be able to restart because the limit switch is tripped. Hold your blue over ride button while starting the lift for about an 1/8 of a bullwheel revolution and the limit switch will reset. I am not 100% sure but I think in reverse operation, if the lift should run away, the brakes will be applied by a Reference-Actual or an Actual-Actual fault depending what is going on to cause the runaway. So not all the rollback safeties are bypassed.
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#69 yardsale

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Posted 01 April 2005 - 11:20 AM

coskibum, on Feb 6 2004, 08:04 PM, said:

Ok i had a question today while skiing...why would a lift need to operate in reverse.  there was a trivia question by one of the lifties that said "what is the only lift that can go in reverse at copper?"  well the obvious answer was timberline and it was indeed correct according to him.  does anyone know why one would need this feature and why don't lifts made by Poma go backwards too?

thanks!
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For maintenace being able to run in reverse is a key time saver,Poma`s dont run in reverse cause they dont need mayntnunce!

#70 liftmech

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Posted 01 April 2005 - 08:56 PM

Really! Then I should quit right now!
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#71 Skiing#1

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Posted 06 March 2012 - 07:58 AM

View Postlift_electrical, on 30 March 2005 - 12:18 PM, said:

All the Doppelmayr detachs I have worked on run in reverse. The speed is limited to 1 meter. There are ways to make the lift run 5 meters in reverse.........There are several reasons for reverse run. One is to have a grip that has failed a grip force check run in reverse back into the station and unload the carrier. Another would be loading chairs back on the line when using a dead end park rail as mentioned several times earlier. Last it is an easy way when doing your preseason testing to check the limit switch that is in the enclosure where the bullwheel tach is mounted. Run the lift in reverse, switch to forward and try and start the lift. You should not be able to restart because the limit switch is tripped. Hold your blue over ride button while starting the lift for about an 1/8 of a bullwheel revolution and the limit switch will reset. I am not 100% sure but I think in reverse operation, if the lift should run away, the brakes will be applied by a Reference-Actual or an Actual-Actual fault depending what is going on to cause the runaway. So not all the rollback safeties are bypassed.


Other reason: any skiers hang on the chair...they have to have reverse and bring them down to safe.

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#72 SkiLiftsRock

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Posted 06 March 2012 - 09:30 PM

Here is another good reason as to why the lift might have to go in reverse:

http://www.youtube.c...h?v=XH-tLteRVJ4

5 people loaded a quad. How can you do that?? Tight squeeze in the carrier!

#73 Peter

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Posted 07 March 2012 - 08:14 AM

View PostSkiLiftsRock, on 06 March 2012 - 09:30 PM, said:

Here is another good reason as to why the lift might have to go in reverse:

http://www.youtube.c...h?v=XH-tLteRVJ4

5 people loaded a quad. How can you do that?? Tight squeeze in the carrier!


This happened right in front of me at Crystal a few years ago. Although the lift operator didn't notice. When I told him the last chair had 5 people on it he just looked up and laughed. Wasn't a Doppelmayr so there wasn't much he could have done I guess.

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#74 liftmech

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Posted 07 March 2012 - 07:47 PM

Not the first time I've seen that on that particular lift....
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#75 LiftTech

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Posted 09 March 2012 - 05:41 AM

Our new Poma 6 pack detach (LPOA terminal) runs in reverse, only 500 fpm, even has a backup alarm, to not run in reverse is now an option.

#76 cjb

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Posted 12 March 2012 - 07:06 AM

Running in reverse is also handy to correct spacing issues. We had our high clutch misbehaving the other day so we run the lift in reverse, stalled the chair that had previolusly stalled in forward operation and avoided laps of long over-rides.

#77 chairliftsrcool

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Posted 12 March 2012 - 04:39 PM

Speaking of reverse, saw the UC Quad at Copper go in reverse about ten minutes before openening yesterday.

#78 liftmech

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Posted 12 March 2012 - 05:48 PM

Standard weekly test there on UC/H-lift.
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#79 2milehi

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Posted 14 March 2012 - 11:29 AM

Any reason for that weekly test? When I was at Keystone there was no weekly test for Reverse. Summer maintenance was the only "test".
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#80 liftmech

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Posted 16 March 2012 - 04:11 AM

I'm guessing because it's new? I should clarify it's not a true weekly in that it's not on the required form. I'd bet we don't do it after this first 'break-in' season. We don't on Timberline.
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