R 408.14246 Steam and pneumatic hammers.

Rule 4246. (1) A steam or air hammer shall be equipped with a functional safety cylinder head to act as a cushion if the piston rod breaks or pulls out of the ram. (2) A steam hammer shall be provided with a quick access emergency shut-off valve identified by name or color in the supply, sometimes called admission, pipeline at a location within reach of the operator. This valve shall be closed and locked in the “off” position while the hammer is being adjusted, repaired, or serviced, or when the die are being changed, except where necessary to move the ram. (3) If the steam hammer cylinder is constructed without a self-draining arrangement, a drain cock shall be provided which shall be piped to a sump or drain pipe. (4) A pneumatic hammer shall have a drain cock on the main head cylinder and on the clamp cylinder, if a clamp cylinder is provided. (5) Steam or air pressure at the hammer shall be no higher than that for which the hammer is designed. A pressure regulator and safety valve at the source of power or at the equipment, whichever is applicable, shall be used to insure this. (6) A steam pipe shall be covered where exposed to contact. Pipe supports or other effective means shall be provided to prevent failure from vibration, expansion, or contraction. (7) Steam or air piping shall be as prescribed in ANSI B31.1.0-1967, Power piping, with addenda issued before April 28, 1971, which is incorporated herein by reference and may be inspected at the Lansing office of the Department of Licensing and Regulatory Affairs. This standard may be purchased from IHS Global, 15 Inverness Way East, Englewood, Colorado, 80112, USA, telephone number: 1-800-854-7179 or via the internet at website: http://global.ihs.com, at a cost as of the time of adoption of these rules of $96.00 each. (8) Where it is necessary to service a steam cylinder, a fixed platform, as prescribed in R 408.14249(2), shall be provided, or the employee shall wear a safety belt and lanyard, with the lanyard secured to the hammer or a structural member.