This Part applies to transmission jacks that are used to remove and install transmissions and differential assemblies from automobiles and trucks.
2-1.2 Classification
Hydraulic, pneumatic, and mechanical are the classifications for which this Part applies. When a combination of these force transmitting means is used, each system shall be tested to conform with this Part.
2-1.3 Illustrations
Figures 2-1 and 2-2 show typical transmission jacks covered by this Part and are not intended to be all- inclusive.
2-1.4 Definitions
controls, tilt: controls provided to adjust the angular position of the lift platform assembly about two principal independent axes (longitudinal and transverse).
jack, hidrauIic transmission: a device that utilizes a hydraulic pump to raise and lower an automotive transmission into position for assembly and disassembly.
jack, mechanical transmission: a transmission jack that utilizes mechanical means, such as levers, cables, gears, screws, ratchets, and pawis.
jack, pneumatic transmission: a transmission jack that employs compressed air as the force transmitting medium.
jack, transmission: a mobile lifting device having a lift platform assembly suited to retaining an automotive transmission, and other driveline components such as transfer cases and transaxies, and designed to support and stabilize the component during its installation or removal from a vehicle.
lift, mechanical: a device that employs mechanical lifting means such as cable, gears, screws, chains, or the like as the force transmitting medium.
lift platform assenibly: the portion of the PA1D that contacts the transmission or differential assembly and includes the brackets, adapters, and load restraints provided by the manufacturer.
load restraint: a device supplied by the manufacturer to retain the load on the lift platform.
mechanism, tilt: a device that allows the lifting member to be angularly adjusted relative to the horizontal plane.
2-2.1 Operating Controls
Operating controls shall be designed in such a manner that they are readily visible and accessible to the operator 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 release system shall require intentional positive action by the operator for release to prevent accidental lowering.
2-2.2 Lift Platform Assembly
The lift platform assembly shall be equipped with load restraints and adapters and shall he capable of sustaining a proof load, as defined in para. 2-2.6, at any angle within the designed tilt range to a maximum of 10 deg in all directions. Provision shall be made to prohibit separation of the jack and the lift platform assembly when the lift platform assembly is loaded.
2-2.3 Tilt Control
When tilt control adjustment mechanisms are provided, they shall require intentional positive action by the operator to change the angle of tilt.
2-2.4 Overload Capacity
All transmission jacks shall be designed to meet the requirements of para. 2-2.6 as minimum overload capacities.
2-2.5 Travel Limit
Each transmission jack shall be provided with a positive means to prevent the load from being raised or lowered beyond the design limit of travel.
2-2.6 Proof Load
(a) Transmission jacks not equipped with internal load limiting devices shall be capable of performing the proof load test of para. 2-4.1.3 with a proof load of 150% of rated capacity.
Not for Resale.