Labeling: Each lift shall be affixed with a legible and durable nameplate. Permanent plaques are required, decals are not acceptable. The plaque shall include the following: Name and address of the manufacturer Model number Serial number Month & year of manufacturing
LAMPS, SIGNALS AND WARNING DEVICES:
Alternately Flashing Signal Lamps; when the master switch is on, opening the lift door shall activate the red warning lights with the ignition off or on.
The sides of any bus provided with a wheelchair lift shall be within plus or minus two inches (± 2") of each other when measured from comparable points on each side to the ground with the bus empty and parked on a level hard surface (such as concrete). Chassis springs and suspension shall be adjusted as necessary to provide a level bus when the additional weight of a wheelchair lift is installed.
HYDRAULIC SYSTEM AND RELATED COMPONENTS:
Electric-hydraulic wheelchair lifts shall be furnished with a hydraulic system for lift operation. The components shall include, but not be limited to, the following: Hoses and Fittings: Hose, hose fittings, and hydraulic fittings shall meet the requirements of SAE J517, J516, and J514, respectively, for nominal size(s) furnished. Hydraulic Cylinders: Hydraulic cylinders shall be installed for lift operations. Piston rod diameter of each cylinder shall be a minimum three-fourths inch (3/4"). Cylinders shall have a minimum of thirty-four inches (34") of extension action and shall lift a minimum of eight hundred pounds (800 lbs.) in addition to the weight of the lift. Hydraulic Fluid Reservoir: A reservoir for hydraulic fluid shall be furnished and installed in an accessible location to allow easy checking of the fluid level and filling as necessary. Fluid capacity and type shall be as recommended by the lift manufacturer. Hydraulic Valves: The system shall provide valves for the following actions: Over pressure: A pressure-limiting device to prevent over loading of the lift system design capacity. Override: A bypass valve (or other means) shall be provided to prevent the lifting of the bus by over extending the hydraulic cylinders. Power Failure: The system shall be equipped with a manual back up system for raising and lowering the wheelchair platform in case of power failure. No tools other than those provided and stored on the lift shall be required for manual operation.