1.To avoid the use of castors for other purpose than then original,or to dismount caster down mounted on other devices.
2.To avoid use on uneven ground and sharp prominent
3.To avoid giving any shocks,such as drop from high place,vibration,forklift forks hit
4.To avoid while carrying the weight bias side.
5.For Fixed wheel,need avoid applying the same rotation direction coercive power on fixed caster wheels
6.Avoid tow the devices use cars or tractor trailers.
7.To avoid put the caster on heat like oven and such radioactive place
8.To avoid exceeding the caster safety loading capacity.

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