ASME/ANSI PALD-11:1986 pdf free download

ASME/ANSI PALD-11:1986 pdf free download.WHEEL DOLLIES.
lifting frame — the stationary portion of a wheel dolly to which the lifting member is attached and on which it operates
lifting member — the moving portion of the wheel dolly which engages the tire and wheel assemblies
load restraint — a device used to retain the load to the lifting member
mechanical wheel dolly — a wheel dolly which employs mechanical lifting means, such as cables, gears, screws, or chains as the force-transmitting medium operating controls — the mechanism(s) which must be manipulated to initiate and control the raising, lowering, and tilting of the lifting member of the wheel dolly overload — a load which exceeds the rated capacity of the wheel dolly
proof load — a nondestructive load equal to or greater than the rated capacity, applied to the lifting member to confirm the integrity of the structure
rated capacity — the maximum published operating load which the wheel dolly is designed to lift, support, and transport
rollers — mechanisms attached to the lifting member which rotate about it
tilt mechanism — a device that allows the lifting member to be angularly adjusted relative to the horizontal plane
warning — a statement used to alert the owner and/or operator of possible hazards which may be encountered when using this equipment
Section 3 — Design
3.1 OperatIng Controls
Operating controls shall be so designed and positioned that they are readily visible and accessible to the operator, and shall be designed so that the operator’s hands will not be subjected to pinch points, sharp edges, or snagging hazards. The release system shall require positive action by the operator for release in order to prevent accidental lowering.
3.2 Travel Limit
Each wheel dolly shall be provided with a positive means to prevent the load from being raised or lowered beyond the design limit of travel.
3.3 Overload Capacity
All wheel dollies shall be designed to meet the requirements of para. 3.4 of this Standard as minimum overload capacity.
3.4 Proof Load
Wheel dollies shall be capable of lifting and sustaining a proof load of 150% of rated capacity applied to the rollers mklway between the front and rear of the member.
3.5 Rollers
The lifting member shall be equipped with rollers to permit the rotation of wheel assemblies for the purpose of aligning bolt holes to their mating wheel studs.
3.6 Load Restraint
The load restraint shall be so designed and positioned as to prevent the inadvertent loss of the load during operation and movement of the wheel dolly.
3.7 TIlt Mechanism
When a tilt mechanism is provided, it shall be so designed to allow the lifting member to be adjusted relative to the horizontal plane, and it shall require intentional positive action by the operator to change the angle of tilt.
Section 4 — Production Marking and Identification
4.1 Capacity Information
All wheel dollies shall have the rated capacity marked in a prominent location on the product by means of casting imprint, metal stamp, or by use of durable materials and attaching methods.