Separation is a simple and effective machinery and equipment risk control and may be achieved by distance, barrier or time. • Distance separation means a person cannot reach the hazard due to distance. • Barrier separation means an effective barrier or guard denies access and controls ejection of parts, products or waste. • Time separation means at the time of access, the machinery and/or equipment is disabled.
People performing these tasks must be provided with the means to get themselves and any equipment they require onto the roof with no risk, or minimal risk of fall or injury.
Where access to the hazard is infrequent, the installation of a fitted guard, that can be removed by use of a tool, may be an acceptable control, where the tool to remove the barrier or guard is not normally available to the operator.
A guard can perform several functions including: • denying bodily access • containing ejected parts, tools, off-cuts or swath • preventing emissions escaping • forming part of a safe working platform. Guarding is commonly used with machinery and equipment to prevent access to: • rotating end drums of belt conveyors • moving augers of auger conveyors • rotating shafts • moving parts that do not require regular adjustment • machine transmissions, such as pulley and belt drives, chain drives, exposed drive gears • any dangerous moving parts, machinery and equipment.