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February 05, 2010  |   Comments (2)   |   Post a comment

Proactive Customers Boost Lift User Safety

The features of today’s vehicle lifts help prevent technician injuries, but to maximize their safety, pupil transporters must ensure that the lift is certified, that their shop can properly house the equipment, that techs are trained to operate it and that the lift is inspected annually.

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Photo by Louise Foerschner, Nassau Board of Cooperative Educational Services (Garden City, N.Y.)

Photo by Louise Foerschner, Nassau Board of Cooperative Educational Services (Garden City, N.Y.)

Vehicle lifts make technicians’ jobs much easier, but given the size and weight of a school bus, working on one while it is elevated cannot be taken lightly.

Fortunately, in addition to designing products that effectively lift and support vehicles while they are up in the air, manufacturers have equipped their lifts with features and technology to maximize user safety.

Wireless systems, locks and automatic shutoff ability reduce hazards

Stertil-Koni now offers wireless mobile lifts. “There are no connection cables or wires between the lifts’ columns, which gives technicians unimpeded access to the vehicle and eliminates the tripping hazard that wires presented,” President Jean Dellamore says.

The company’s Skylift (a platform lift) models are also free from obstruction between the legs. Dellamore says there are no crossbeams, so there is clear-floor access all the way around the vehicle.

Gray Mfg. Co. Inc.’s Wireless Portable Lift Systems also utilize wireless technology to facilitate communication between the columns.

Locking mechanisms that prevent a vehicle from moving and the lift from dropping quickly in the event of a malfunction is another common feature among vehicle lifts. Todd Michalski, vice president of sales and marketing for Gray Mfg., says the company’s Wireless Portable Lift Systems feature two locking systems — a hydraulic holding device, as well mechanical down-stops. If a hydraulic failure occurs, the lift descends slowly a maximum of three inches before it comes in contact with a mechanical down-stop.

Likewise, Rotary Lift’s Modular and Environmentally Friendly In-Ground Lift is equipped with mechanical and hydraulic locks. “The lift is also equipped with electrical devices that ensure that both ends of the vehicle are at the same height and prevent the lift from moving if someone is underneath it,” says Roger Perlstein, director of heavy-duty.

Gary Mason, vice president of sales for SEFAC Inc., says the company’s S1 Mobile Column Lift offers inherent safety for lift users through its self-locking Acme threaded nut and screw drive. The lift stops immediately when power is removed and cannot move again until power is restored.

Finally, Railquip Inc.’s RQL-70 Heavy Duty Mobile Column Lifts feature three modes of operation and detection of load nut failure. (A re-circulating ball bearing screw-nut assembly suspended from the top of the columns provides the lifting power for these units.) Automatic shutoff capability increases user safety as well.

Railquip also offers the EGSXL-85 Series of mobile lifts for school buses. These lifts are equipped with a control console that has a display panel that will alert the lift operator of a system malfunction with an error message. The message will specify which column is the source of the malfunction; in addition, if an error is detected, the lift’s central control unit computer will automatically stop the operation.

Lifts and their accessories should be certified

The wireless technology, locking devices and shutoff systems on today’s vehicle lifts are only one key to maximizing technicians’ safety while they are maintaining buses. There are several steps that customers must take both prior to and after the purchase of a lift to help prevent employee injuries.

Steven Perlstein, sales and marketing manager for Mohawk Lifts, manufacturer of the TR-25 Four-Post Ramp Lift, says one of the first steps is confirming, prior to purchasing a lift, that it meets the national mechanical and electrical safety standards set for vehicle lifts, that it has been certified by the Automotive Lift Institute (ALI) and that it meets the building codes for the state or province where the lift will be operated.

“An educated customer is our best customer,” Perlstein says, adding that the ALI Website, www.autolift.org, offers a directory of vehicle lifts that have been certified in accordance with the requirements of the ALI/ETL (Intertek Testing Laboratories) Certification Program, and a list of companies that are ALI members. The Website also contains information on state and provincial codes. (Click on “ALI Knowledge Center” on the left-hand side of the home page, then “Code Enforcement.”)

Dellamore also emphasizes the importance of purchasing ALI/ETL-certified vehicle lifts and recommends that anyone who is considering buying a vehicle lift should do so from a manufacturer that is a member of the ALI.

Moreover, Steven Perlstein says that making sure that accessories purchased with a vehicle lift are certified is just as important as lift certification.

“If you have an uncertified accessory on a certified lift, it voids the certification of the lift,” he explains.

Assess the structure and condition of your shop

Regardless of whether an operation purchases an ALI/ETL-certified lift, technicians could still be at risk of sustaining injuries if the operation’s maintenance garage is not built to properly house a vehicle lift.

Mason suggests checking the shop floor — a vehicle lift must be installed on level ground, so the floor cannot have too large a slope.

Michalski agrees. “You have to make sure that the ground will support the vehicle lift; it shouldn’t have more than a three-degree slope,” he says. “You also have to make sure that the entire footprint of the lift is on the ground. There shouldn’t be ripples, depressions or a seam in the cement that would take some of the footprint off of the ground.”

Additionally, Mason and Michalski say that there must be adequate clearance above the lift to enable full elevation of the vehicle without obstruction. If a vehicle strikes rafters, heating ducts or anything else as it is being lifted, it could damage the vehicle or the garage as well as lead to someone getting hurt.

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Mohawk Lift and Steve Perilstein continue to sell the TR25 4-post lift to school districts in NYS. This lift is NOT a Certified lift, DOES NOT meet the requirements of NYS Building Code and is not listed on the ALI website - www.autolift.org (directory of certified lifts). Steve Perilstein has been requested by a senior codes enforcement officer from Albany, NY not to sell this model lift to any school or business in NYS, yet he continues to do so..... Just because a lift is on NYS contract does not make it certified. Do your homework!

Anonymous    |    Jun 16, 2010 08:38 AM

It would have been nice if this article, when mentioning Stertil-Koni, had noted that Gray Manufacturing is suing Stertil-Koni because the wireless lifts they now offer violate several of Gray's patents. The USPTO agreed to Stertil-Koni's request to reexamine the patents in question. The result was that the USPTO upheld Gray's patents. As Stertil-Koni's defense to the patent infringement lawsuit is to claim the patent is invalid . . . you do the math. Your readers deserve to know that one of the "choices" out there is most likely going to not be around before too much longer.

Anonymous    |    May 27, 2010 11:00 AM

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