ASME PALD-2009 pdf download.Safety Standard for Portable Automotive Lifting Devices.
2-3 SAFETY MARKINGS AND MESSAGES Examples of safety markings and messages are speci- fied in paras. 2-3.1 and 2-3.2. 2-3.1 Safety Markings Safety markings shall conform to the ANSI Z535 series of standards. (a) Study, understand, and follow all instructions before operating this device. (b) Do not exceed rated capacity. (c) Use only on hard, level surfaces. (d) Adequately support the vehicle before starting repairs. (e) Failure to heed these markings may result in per- sonal injury and/or property damage. (f) Use ofthis productis limited to the removal, instal- lation, and transportation in the lowered position, of transmissions, transfer cases, and transaxles. 2-3.2 Safety Messages Additional safety messages include the following: (a) No alterations shall be made to this product.
(b) Only attachments and/or adapters supplied by the manufacturer shall be used. 2-4 DESIGN QUALIFICATION TESTING 2-4.1 Proof Tests For each design or design change that may affect the jack’s ability to meet this Standard, sample jacks built to design specifications shall be prooftested. To conform with this Standard, the jacks shall perform to design specifications and no functional damage shall occur, nor shall operational characteristics be detrimentally affected. 2-4.1.1 Loaded Operational Test. A deadweight load not less than the rated capacity of the jack and configured such that the entire load is above the lifting platform shall be centrally located and restrained by the lifting platform and the following operational tests shall be conducted.
2-22.214.171.124 Load-Sustaining Test. With the lift plat- form at its maximum height, the jack shall sustain the load and shall not lower more than 0.125 in. (3.18 mm) in the first minute nor a total of 0.1875 in. (4.76 mm) in 10 min. 2-4.1.2 Load-Limiting Device Test (a) Hydraulic transmission jacks with a single-stage hydraulic cylinder equipped with internal load-limiting devices shall be pumped against a measured load with the lifting platform within 1.0 in. (25.4 mm) above its low height until the load-limiting device is activated, at which time the jack must have been supporting no less than 100% of its rated capacity and no more than 125% of its rated capacity. (b) Hydraulic transmission jacks with multiple-stage hydraulics equipped with internal load-limiting devices shall be pumped against a measured load with final stage extended 1.0 in. (25.4 mm) to 2.0 in. (51 mm) above its low height until the load-limiting device is activated, at which time the jack must have been supporting no less than 100% of its rated capacity and no more than 125% of its rated capacity. (c) Hydraulic transmission jacks equipped with lift arms and internal load-limitingdevices shallbe pumped against a measured load with the lift arm in the hori- zontal position until the load-limiting device is acti- vated, at which time the jack must have been supporting 100% of its rated capacity and no more than 125% of its rated capacity. 2-4.1.3 Proof Load Test. A proof load, as defined in para. 2-2.6, shall be applied centrally to the lifting platform of the jack. The load shall be lifted and sus- tained throughout the lifting range. For purposes of this test, any internal load limiting device may be deactivated.
3-1 SCOPE, CLASSIFICATION, AND ILLUSTRATIONS 3-1.1 Scope This Part applies to self-contained portable engine stands, designed primarily to support an automobile engine while being rebuilt or repaired. This Part does not apply to permanently mounted engine stands. 3-1.2 Classification This Part applies to self-contained portable engine stands of single- or twin-post construction. 3-1.3 Illustrations Figures 3-1 through 3-3 show typical engine stands covered by this Part and are not intended to be all- inclusive. 3-1.4 Definitions attachments: a means to adapt to various automotive components and engine bolt patterns through the use of separate adapters or adjustable arms that fasten to a mounting plate. engine stand: an automotive engine mounting device, equipped with suitable means to support, rotate, and lock the engine in a working position. frame: a structure consisting of at least one upright col- umn, equipped with a means to accept a mechanical rotating mechanism. mechanical rotating mechanism: a device which provides controlled rotation of the mounting plate.