(1) Safety guards.

(a) No safeguard, safety appliance, or device attached to, or forming an integral part of any machinery must be removed or made ineffective except for the purpose of making immediate repairs or adjustments. Any such safeguard, safety appliance, or device removed or made ineffective during the repair or adjustment of such machinery must be replaced immediately upon the completion of such repairs or adjustments.

(b) No machine must be operated until such repairs and adjustments have been made and the machine is in good working condition.

(2) Steam-pressure apparatus. Steam machines must not be operated at a pressure above that given by the manufacturer's pressure rating as shown on name plate. If the steam source is at a pressure higher than that given by the manufacturer's rating, a stop valve, reducing valve, pressure gauge, and safety valve must be installed, in the order named, from the source. The safety valve must be located in a nonhazardous place.

(3) Machine adjustments. No moving parts of any machine must be oiled, cleaned, adjusted, or repaired while said machine is in operation or in motion except that the rolls of adjusting machines not equipped with hand-power means must be operated at the slowest speed possible with an operator constantly at the starting mechanism.

(4) Extractors. Each extractor must be dismantled and inspected at least once a year and, if necessary, repaired. Overdriven extractors, if provided with handholes through which basket and rings can be inspected, need not be dismantled.