AS 4024.3001:2021 pdf download.Safety of machinery Part 3001: Machine tools safety一Presses 一General safety requirements.
5 Safety requirements and/or measures
5.1 General
The methods or measures to be implemented to eliminate the significant hazards or reduce their associated risks are detailed in this clause in the following manner:
— basic design considerations for major press components or systems (see 5.2);
— safeguarding against mechanical hazards in the tools area under different modes of production (see 5.3);
— protection against hazards due to control system or control component failures (see 5.4);
— safeguarding against hazards which can occur during tool-setting, trial strokes, maintenance and lubrication (see 5.5);
— safeguarding against other hazards (see 5.6 to 5.8).
5.2 Basic design considerations
5.2.1 Hydraulic and pneumatic systems — Common features
5.2.1.1 The general requirements in ISO 4413 and ISO 4414 shall be taken into consideration in designing hydraulic and pneumatic systems, which shall comply with the particular requirements in 5.2.2 and 5.2.3.
5.2.1.2 Filters, pressure regulators, and low pressure cut-off arrangements shall be provided.
5.2.1.3 Pressure control devices shall be provided to ensure that the permitted range of working pressure is maintained.
5.2.1.4 Pressurized transparent bowls (e.g. glass, plastic) shall be protected to prevent injury from projection of fragments. without affecting visibility.
5.2.1.5 All piping, pipe fittings, passages, surge or storage tanks and cored or drilled holes shall be free from burrs or foreign matter which might cause damage to the system. See ISO 4413:2010, 5.4.6.4 and ISO 4414:2010, 5.4.5.4.
5.2.1.6 Each run of pipingshall, where practicable, be continuous from one piece ofapparatus to another.
Precautions shall be taken to prevent damage by thermal expansion. Rigid piping shall be securely supported at frequent intervals to avoid vibration or movement. Care shall be taken to avoid kinking of flexible pipes and hoses used to carry fluids. Such kinking can cause traps which prevent the fluid exhausting.
5.2.1.7 Where a drop in pressure could lead to unintended dangerous motion of the slide/ram, flexible piping shall not he used. Pipes and pipe connections shall he chosen to prevent such a loss of pressure. Such pipe connections shall not be made with compression fittings, glued rings or similar devices. They shall be made by means of positive connecting joints, or by the welding of two fitted surfaces.
5.2.1.8 Operating valves shall not depend on connected piping for support. e.g. be fitted to a mounting plate or to the cylinder. This is to avoid undesirable effects from vibration which might affect both valves and piping.AS 4024.3001 pdf download.