See also:

Tongue load
Keep the tongue load between 10 - 15 percent of the total trailer load or use the trailer tongue load specified by the trailer manufacturer. The tongue load must be within the maximum tongue load ...

Maximum load limits
Maximum trailer loads Never allow the total trailer load to exceed the value specified in the Towing Load/Specification chart found later in this section. The total trailer load equals trailer w ...

Temperature
High temperatures accelerate the rate of corrosion to those parts which are not well ventilated. ...