ASME PALD:2009 pdf free download

ASME PALD:2009 pdf free download.Safety Standard for Portable Automotive Lifting Devices.
24.1.1.5 Load-Sustaining Test. With the lift platform at its maximum height, the lack 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 mm.
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-limiting devices shall be pumped against a measured load with the lift arm in the honzontal position until the load-limiting device is activated, 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 sustained 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.
enginc’ stand: an automotive engine mounting device, equipped with suitable means to support, rotate, and lock the engine in a working position.
franu’: a structure consisting of at least one upright column, equipped with a means to accept a mechanical rotating mechanism.
mechanical rolahing niechanism: a device which provides controlled rotation of the mounting plate.
mowitinç attachments: a means to adapt to various engine bolt patterns through the use of separate adapters or adjustable arms that fasten to the mounting plate.
plate, mounting: a component of the PALD lifting or rotating mechanism equipped with slots or holes to accept the use of mounting attachments or direct mounting of an automotive component.
rotational locking device: a means to prevent unintentional movement of the mounting plates.