Some components / parts are very hot and could release steam during working.

Sharp edge or burrs of components / parts would hurt technicians' hands, please wear glooves to protect your hands.

During test, please use extra wires to connect terminal with multimeter or other instruments, please don't use hand to touch testing machine directly in case of electrical shock.
If wires don't have sleeves, please make sure wires don't touch each other.
CASE 1: MULTIMETER

During test, please keep the multimeter probes hang onto an insulated object and make sure probes don't touch each other to avoid any electrical risk.
