Web Extras
| How To: Maintaining Wheelchair Lifts |
|
|
|
| Sunday, 01 February 2009 08:27 |
|
Providing regular maintenance on wheelchair lifts is vital in optimizing the performance and safety of students who rely on the lift in addition to maximizing the life of the unit. So we turned to Ricon to show us how (see the photos in the February 2009 issue). Today’s lifts are by far the best quality and safest units the industry has ever seen, due in part to advanced technology and the highest quality standards. The number one concern of manufacturers is the safety of passengers as well as operators. Most lifts are shipped with an operation guide and other information that explains the safe operation of the particular lift. The lift maintenance schedule for this particular lift is based upon lift cycles and this FMVSS 403 unit is equipped with a cycle counter. The basic schedule is as follows: 10 cyclesCheck the lift for smooth, quiet operation through all functions. 150 CyclesA. Inspect for any signs of frayed wires or loose connections B. Check the brake interlock system to make certain that it operates as intended. C. Check all decals and replace any that are faded or damaged. D. Inspect all mounting points to ensure they are secure, undamaged and do not show signs of corrosion. (If the lift is installed in an older bus, it is always a good idea to periodically check the plywood sub floor to make certain that it has not lost its integrity due to moisture, etc.) E. Inspect the lifting arm pivots to make sure that they do not bind and that the pins are locked securely in place. F. Verify that the outboard rollstop opens smoothly at ground level and closes securely as the platform rises. (The platform tilt adjustment directly affects the outer rollstop operation.) G. Inspect the operation of the inner rollstop/bridgeplate and make certain that it is fully deployed when the platform reaches bus floor level. H. Check the hydraulic power unit for any signs of leakage or noisy operation. Check fluid level and, if additional fluid is required, use only U.S. military spec H5606G Texaco 01554 Aircraft hydraulic fluid or equivalent. 1,800 CyclesA. Clean the lift with mild soap and water and apply a light coat of WD 40 or equivalent. B. Lubricate all points shown in the lubrication chart. 3,600 cyclesA. Check hydraulic cylinders for any signs of leakage. B. Inspect hydraulic hoses. C. Verify all hydraulic fittings are tight. Operators should immediately report any strange noises, signs of leakage, binding or anything unusual to the maintenance department. Safety should be your greatest concern. Editor's note: Excerpt from the February 2009 issue of School Transportation News with content provided by Ricon Corporation. View the entire article with photos as it appeared in the magazine.
|




