Interlock guarding is generally achieved via mechanical or electrical means, but may also include hydraulic or pneumatic control systems. The energy stored in moving parts (momentum) can cause the mechanism of the machinery or equipment to run on for some time after the source of driving energy has been removed.
Note: The Work Health and Safety Regulation 2011 prescribes specific requirements that must be taken into account when determining risk controls for both confined spaces and working at heights.
Where safe working platforms are used and the risk of a fall remains, travel restraint and fall-arrest harnesses can be used where a suitable point of attachment exists. Harness systems, anchor points and shock absorbing lanyards must be compatible at each point of attachment from the anchor point to the harness, with approved and rated latching devices to ensure the integrity of the system.
People operating machinery and equipment could: • be required to place their hands close to the mechanism of the machinery and equipment that does the work, and may be injured if caught or trapped by moving parts • be exposed to constant harmful noise, radiated energy or fumes being emitted from the machinery and equipment being operated, or are close to • inadvertently bump or knock poorly placed control levers or buttons • be required to make adjustments to the mechanism of machinery and equipment while the machine is in motion • be required to clear away scrap • make minor adjustments, or reach into the moving mechanism of the machinery and equipment being operated.