See also:

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

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 ...

Tire inflation pressure
Check the tire pressures (including the spare) often and always prior to long distance trips. The recommended tire pressure specifications are shown on the F.M.V.S.S./C.M.V.S.S. certification labe ...