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Transcript
12 COMMISSIONING Danger Before the Tyre-Killer TK is tested: - There can be no cars on or in the vicinity of the Tyre-Killer TK; - The Tyre-Killer TK must be cleared of obstacles, such as materials that have been used for the assembly; - Personnel must be out of the vici nity of the Tyre-Killer TK. The operation/functioning of the Tyre-killer TK is as follows: 12.1 Function for switches In the following description, the functions of the valves and proximity switches refer to their functions. The following names are used: Type of detector Proximity switch Valve Name Function Limit switch down Detects lowest position of the obstacle Limit switch up Detects uppermost position of the obstacle Limit switch unlocked Detects the “unlocked” position of the mechanical lock Limit switch locked Detects the “locked” position of the mechanical lock Valve down Lowering of the obstacle Valve up Pressure switch en - 26 Raising of the obstacle Valve unlock Unlocking of the obstacle Valve lock Locking of the obstacle Pressure switch Detect maximum hydraulic pressure in the hydraulic system caused by reaching a mechanical endpoint or blocking of the obstacle Tyre-Killer TK 04-2002