Emergency stop. Readily accessible stop controls shall be
provided for use in an emergency. Whenever the operation of any power
conveyor requires personnel to work close to the conveyor, the conveyor
controls shall not be left unattended while the conveyor is in
Guarding. All conveyor and trimmer drives that create a hazard
shall be adequately guarded.
Approved for location. Electric motors and controls on
conveyors and trimmers used to handle grain and exposed to grain dust
shall be of a type approved by a nationally recognized testing
laboratory for use in Class II, Division I locations. (See 1910.7
of this chapter.)
Grain trimmer control box. Each grain trimmer shall have a
control box on the weather deck close to the spout feeding the trimmer.
Grain trimmer power cable. Power cables between the deck
control box and the grain trimmer shall be used only in continuous
lengths without splice or tap between connections.
Portable conveyors. Portable conveyors shall be stable within
their operating ranges. When used at variable fixed levels, the unit
shall be secured at the operating level.
Delivery and braking. When necessary for the safety of
employees, provisions shall be made for braking objects at the delivery
end of the conveyor.
Electric brakes. Conveyors using electrically released brakes
shall be constructed so that the brakes cannot be released until power
is applied and the brakes are automatically engaged if the power fails
or the operating control is returned to the "stop" position.
Starting powered conveyors. Powered conveyors shall not be
started until all employees are clear of the conveyor or have been
warned that the conveyor is about to start up.
Loading and unloading. The area around conveyor loading and
unloading points shall be kept clear of obstructions during conveyor
Conveyors shall be stopped and their power
sources locked out and tagged out during maintenance, repair, and
servicing. If power is necessary for testing or for making minor
adjustments, power shall only be supplied to the servicing operation.
The starting device shall be locked out and tagged out in the
stop position before an attempt is made to remove the cause of a jam or
overload of the conveying medium.
Only designated persons shall operate,
repair or service powered conveyors.
The employer shall ensure that each employee stays off
Conveyors shall be operated only with all overload devices,
guards and safety devices in place and operable.
[62 FR 40141, July 25, 1997]