SAM Coverage
Lift Maintenance
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Facts, Figures and Rules of Thumb
Nils provides mathematical formulas to make the calculations needed for some lift projects easier. He provides estimates for calculating motor HP, wire rope grade,…
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Sheave Assembly 101
This article explains how to extend the life of a lift and prevent accidents through proper cleaning, lubing and alignment of sheave assemblies.
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Basic Components of Wire Rope
This is the first in a series of articles on wire rope that was presented in the months prior to the OITAF International Congress…
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Putting Sheaves In Their Place
Thirty-two sheave assemblies needed to be overhauled in a hurry at Tremblant, Que. Once the right equipment was lined up, a team effort allowed…
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An Inch In Space Saves Down Time
Doppelmayr provided Stratton, Vt., with a solution to prevent ice buildup from stopping their new six-passenger lift: an inch of clearance between the outer…
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Vector Drives Make Induction Motors Work For Aerial Lifts
By installing variable frequency control systems on lifts, Breckenridge reduced maintenance costs on DC motors.
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Dc Drives: Shortening The Overhaul Cycle
An in-depth guide to DC motor design and operation outlining proper care which can save money during the average 30-year life of a ski…
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Reliability For Evacuation
All parts of lift backup engines should be tested and maintained to ensure reliability. Three possible components of an effective evacuation system include: accommodation…
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Replacements, Rebuilds And Other Fixes
An outline of the various approaches being taken to solve the problem of design and manufacturing deficiencies in Yan detachables produced by Lift Engineering…
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A Better Way To Repair A Splice
Modern terminal designs with shorter tension carriages require low-stretch ropes that place limitations on conventional repair methods. Wire-butt welding offers an alternative technique.
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Dc Drives: Testing For Condition And Trends
Conducting and analyzing the results of predictive testing, motor-condition testing and monitoring performance can significantly extend the life and reliability of DC motor drives.
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Dc Drives: Inspection, Cleaning, Lubrication And Overhauls
The third of three articles (the first two ran in May and September 1996) on preventive maintenance for ski lift DC drive motors. This…
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Customize Your Lift
Article outlines some practical, inexpensive steps that can make new lifts more user-friendly and safer, too. Topics covered include: lift completion, improved safety, facilitated…
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Are Your Lifts Driving You (And Your Neighbors) Crazy?
The DC drives of the Vail/Beaver Creek, Colo., lift system were generating significant harmonic currents that were raising hell with the supposedly “clean” power…
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Belt Transmissions
Another in the Lift Basics series explains how power is transmitted with an emphasis on V-Belts. Includes charts, graphs and illustrations.
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Dander! Water In The Hydraulic Systems Of Ropeway Brakes
A print version of a presentation given by the author at the 6th OITAF/NACS Syposium, held in September at the Mount Washington Hotel, N.H.…
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Taking Up The Slack
A review of the new product from Gortrac that contains wires and hoses allowing for carriage movement on lifts.
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Ramp Monitor Board
For just a few dollars and a few minutes of installation time, Winter Park, Colorado, got peace of mind with a “Bottom-line, catch-all circuit…