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March 07, 2011  |   Comments (2)   |   Post a comment

Simplifying Wheelchair Lifts

The wheelchair lift industry is moving toward technology that reduces equipment complications and helps users better understand how to operate and maintain their lifts.

by Brittany-Marie Swanson

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Braun Corp. eliminated the standard diagnostics system from its lifts when it was discovered that the system overcomplicated lift maintenance and repair.

Braun Corp. eliminated the standard diagnostics system from its lifts when it was discovered that the system overcomplicated lift maintenance and repair.

A functioning, well-maintained wheelchair lift is an integral part of transporting special-needs students. Manufacturers have developed lifts with fewer wires and less complicated mechanical systems to make maintenance and repair easier.

Customers can choose from a number of optional safety restraints, handrails and available rollstop mechanisms to better fit the needs of students and operators. And, oftentimes, training in operation and maintenance is available through the manufacturer.

SBF spoke with Braun Corp. and Maxon Lift Corp. for details on the latest lift options that are available for the school bus market.

Different capacities, safety mechanisms available
Braun Corp. manufactures three series of wheelchair lifts for the school bus market: Vista-2, Century-2 and Millennium-2. The Century-2 and Millennium-2 Series have identical features and ratings, but the Century-2 Series is equipped with a spring-loaded rollstop mechanism, while the Millennium-2 Series features a hydraulic rollstop.

Both types of rollstops are effective, says Braun's Commercial Sales Manager Kevin Trudeau, so "it's more for customer preference. If the customer doesn't want hydraulics, they can purchase lifts with the spring-loaded features that we offer."

Alternately, Braun's Vista-2 Series has a stacking platform, meaning that when the lift is placed in the stowed position, it allows for driver and passenger visibility. This unique feature improves safety on the road.

The Maxon Lift Corp., under its Maxon Mobility Division, offers "one lift model [for school buses] with two different capacities," says John Prahl, vice president of sales. The WL7CSmart Lift - part of the WL7 Smart Lift series - is offered as an 800-lb. capacity or 1,000-lb. capacity lift.

"The Maxon model WL7C Smart Lift is durable and reliable, and it lifts its capacity with ease," Prahl adds. The lift provides more cycles with less power through its innovative design.

Simpler electrical, mechanical systems decrease lift problems
Simplified lift systems can improve ease of maintenance and repair, and Maxon and Braun have moved toward lifts with less hardware and less-complicated electrical parts. This has enhanced lift function and led to increased customer satisfaction.

When designing the WL7C Smart Lift, Maxon created a simplified electrical system to improve efficiency. Also, the adjustable micro-switches that aid in the timing of the lift have been removed to reduce downtime.

"The electrical system is so simplistic that we have eliminated 70 percent of the wiring that you normally see on lifts," Prahl says.

The WL7C is equipped with a Brain Box that alerts users immediately when there is a complication with the lift. The Brain Box is capable of identifying specific wires that are shorting, alerting the user to voltage problems or issuing a warning when the pressure sensor is disconnected.

"The technology utilized by the wheelchair lift industry has been stuck in the 1960s," Prahl adds. "The Maxon model WL7C Smart Lift is utilizing technology from the 21st century. The Brain Box has a display that tells the operators - in words - what they did to initiate one of the mandated interlocks. It also displays diagnostics for use by the technicians."

Braun Corp. simplified its lifts by eliminating the standard diagnostics system that the lifts were originally equipped with. As it turned out, the system was largely unnecessary.

"Years ago, we came out with a diagnostic on the lift, which basically was to help diagnose what the problems were if the lift was acting up," Trudeau says. "What we found out is that most mechanics already knew what adjustments to make and that the diagnostic system was overcomplicating things and causing problems. We've gone back to basics and taken [the diagnostics system] out. We've tried to maintain the simplicity of the lift for both the operator and the mechanics that are making adjustments."

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If the lift is deployed and on the ground, what prevents another chair, or person, from dropping off the open edge of the bus doorway?

Bill C    |    Nov 04, 2013 08:36 AM

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powerchair    |    Apr 16, 2011 01:40 PM

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