The load must be supported by enough arms to prevent load deflection. Deflection may cause to damage to the load being stroaged as well as the arms (figure A1).

To detect deflection, place the load over two wooden blocks (to represent cantilever arms) as shown in figure A2. If deflection is not present it is acceptable to use a two arm system as long as this do not create an overload condition. If the load shows deflection use three blocks as shown in figure A3 or four blocks in figure A4.

Important: The load should overhang the end arms by one-half the distance from upright centerline to upright centerline. Failure to observe this measure may cause an overload condition on the arms.