Abstract： ASME B30.27:2005 pdf download.Material Placement Systems. 27-1.7.4 Hour Meters Hour meters shall be installed on any material placement system requiring maintenance based on hours. SECTION 27-1.8: GUARDS (a) Any hazard that is inaccessible...

ASME B30.27:2005 pdf download.Material Placement Systems.

27-1.7.4 Hour Meters

Hour meters shall be installed on any material placement system requiring maintenance based on hours.

SECTION 27-1.8: GUARDS

(a) Any hazard that is inaccessible is considered guarded by location.

(h) A fixed guard shall be installed for rotating shafts. The underside of a mobile truck chassis-mounted material placement system is considered guarded by location.

(C) A fixed guard shall be installed over V-belts, drive pulleys, chains, sprockets, gears, and other moving parts.

(II) All exhaust pipes shall be guarded or insulated to prevent contact with personnel when performing routine duties.

(e) Whenever guarding is impractical. prominent means such as safety signs or lights shall be provided at the point of hazard in

lieu of guarding.

SECTION 27-1.9: MOBILE AND STATIONARY PLACING BOOMS

27-1.9.1 Placing Booms

(a) Mobile placing booms shall be equipped with a remote control with sufficient range to operate the material placement system

from a distance equivalent to the boom length.

(b) The lifting and lowering speed at the end of the boom shall not exceed 3 ft/sec when activating any one section.

(c) The lifting and lowering speed at the end of the boom shall not exceed 10 ft/sec when activating any combination of boom

functions.

(d) The horizontal sleing speed at the end of the boom shall not exceed 5 ft/sec.

(e) An integrally mounted holding device (such as a load hold check valve) shall be provided with each hydraulic cylinder on each

boom section to prevent uncontrolled movement of the boom in the event of a hydraulic system failure (e.g., supply hose rupture).

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