- Part Number:1917
- Part Number Title:Marine Terminals
- Subpart:1917 Subpart G
- Subpart Title:Related Terminal Operations and Equipment
- Standard Number:
- Title:Machine guarding.
- GPO Source:
Definition. "Guarded" means shielded, fenced, or enclosed by covers, casings, shields, troughs, spillways or railings, or guarded by position or location. Examples of guarding methods are guarding by location (positioning hazards so they are inaccessible to employees) and point of operation guarding (using barrier guards, two-hand tripping devices, electronic safety devices, or other such devices).
Machines driven by belts and shafting shall be fitted with a belt-locking or equivalent protective device if the belt can be shifted.
Hand-fed circular ripsaws and hand-fed circular crosscut table saws. Unless fixed or manually adjustable enclosures or guarding provides equivalent protection, hand-fed circular ripsaws and hand-fed circular crosscut table saws shall be guarded as follows to keep employees clear of any danger zones:
Swing cutoff saws.
Swing cutoff saws shall have hoods completely enclosing the upper half of the saw, the arbor end and the point of operation at all saw positions to protect the operator from material thrown up by the saw. The hood shall automatically cover the lower portion of the blade, so that when the saw returns to the back of the table the hood rises on top of the fence, and when the saw is moved forward the hood drops on top, remaining in contact with the table or the material.
Inverted swing cutoff saws shall have hoods covering the part of the saw protruding above the table top or the material being cut. Hoods shall automatically adjust to the thickness of, and remain in contact with, material being cut.
Radial saws. Unless fixed or manually adjustable enclosures or guards provide equivalent protection, radial saws shall be guarded as follows:
Band saws and band resaws.
Abrasive wheels and machinery.
For mounted wheels 2 inches (5 cm) and smaller in diameter used in portable operations.
Work rests shall be used on fixed grinding machines. Work rests shall be rigidly constructed and adjustable for wheel wear. They shall be adjusted closely to the wheel with a maximum opening of⅛-inch (3.18 mm) and shall be securely clamped. Adjustment shall not be made while the wheel is in motion.
Rotating parts, drives and connections.
[48 FR 30909, July 5, 1983; 65 FR 40942, June 30, 2000]