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ASME PALD-2009 pdf download

ASME PALD-2009 pdf download.Safety Standard for Portable Automotive Lifting Devices.
maximum GVWR (passenger car): the passenger car maxi- mum Gross Vehicle Weight Rating as supplied by the manufacturer. This is model specific and usually includes the sum of the following: (a) the vehicle base weight (b) all fluid weight (c) the sum of the weights of all options weighing 5 lbm (2.27 kg) or more (d) the total luggage or cargo weight (e) the total passenger load (f) the same “added factor” or similar fixed weight that was assigned to either the front or rear to account forthe additive effectofsmall weightincreases notantic- ipated during the model run rocker panel adapter: that portion of the jack that engages the vehicle manufacturer’s specified lift point on the rocker panel. 5-2 DESIGN 5-2.1 Operating Controls Operating controls shall be designed in such a manner thattheyare readilyvisible and accessibleto theoperator and so that the operator will not be subjected to pinch points, sharp edges, or snagging hazards. The operation of controls should be clear to the operator either by position, function, labeling, or combination thereof. The handle shall be capable of being operated to the jack’s rated capacity without sustaining functional damage. To prevent accidental lowering, the jack shall require intentional positive action by the operator for lowering the load. Reciprocating handles shall require no more than 100 lbf (444 N) to operate and rotating handles shall require no more than 30 lbf (133 N) to operate. 5-2.2 Design Requirement (a) The minimum jack rated capacity shall be equal to 50% of the GVWR of the intended vehicle.
(b) The jack may have a detachable handle, saddle or rocker panel adapter so configured to enable proper engagement with the vehicle frame or unibody at the lift points recommended by the vehicle manufacturer. (c) The jack shall be capable of lifting and sustaining its rated capacity throughout its range of travel. (d) Jack design shall accommodate the path of travel of the vehicle manufacturer’s recommended jacking points throughout the full range of travel. (e) It shall not be possible to assemble the jack incorrectly. (f) Each jack shall be provided with a positive means to prevent inadvertent disassembly. (g) The projected area of the base shall be sufficient to resultin a maximumbearing pressure of50 psi (7.25 kPa) when the jack is loaded to rated capacity. 5-2.3 Travel Limits Each jack shall be provided with a positive means to prevent the load from being raised or lowered beyond the designed limit of travel. 5-2.4 Proof Load Each jack shall be capable of performing the proof load test of para. 5-4.1.6 with a proof load of 200% of rated capacity. 5-2.5 Hinge Points All hinge points shall be designed and assembled to resist lateral movement detrimental to the jack’s performance. 5-2.6 Lubrication The jack shall be lubricated by the manufacturer. 5-3 SAFETY MARKINGS AND MESSAGES Examples of safety markings and messages are speci- fied in paras. 5-3.1 and 5-3.2. 5-3.1 Safety Markings Safety markings shall conform to the ANSIZ535 series of standards. The jack shall include marking to identify those vehi- cles with which the jack must be used. (a) Study, understand, and follow all instructions before operating this device. (b) Do not exceed rated capacity. (c) Use only on hard level surface. (d) Use onlyfor emergency tire changingor mounting tire chains. (e) Never getbeneath the vehicle when it is supported by the jack. (f) If vehicle is pushed off of jack, discard jack. Do not reuse.
On vans and light duty trucks, the rear axle shall be loaded to its rear GAWR. Additional weight shall be added to the front of the vehicle to attain front GAWR. The test vehicle shall be raised on a hard level surface from a flat tire position to a 2.0 in. (51 mm) ground clearance, with an inflated maximum size tire/wheel combination. This testshall be performed withthe trans- mission in neutral, the parking brake released and wheel chocks stowed. A force of 50 lbf (222 N) shall be applied in a longitudinal direction to the vehicle, forward for 30 sec and rearward for 30 sec. The same force shall then be applied in the transverse direction to the raised side of the vehicle, at least 30.0 in. (762 mm) above the pavement near the jacking point, inward for 30 sec and outward for 30 sec. This test shall be performed at each jacking point recommended by the vehicle manufac- turer. This stability test shall then be repeated on the same unloaded vehicle. Inability of the jack to support the vehicle during this test constitutes failure.

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