(1) When repairs are necessary, repairpersons must have the crane run to a location where the repair work will least interfere with the other cranes and with operations on the floor.

(2) Before starting repairs, repairpersons must see that all controllers are thrown to the "off" position, and that main or emergency switches are opened; one of these must be locked out in compliance with WAC 296-78-715(11) of this chapter.

(3) Repairpersons must immediately place warning signs or "Out of Order" signs on a crane to be repaired and also on the floor beneath or hanging from the crane so that it can easily be seen from the floor. If other cranes are operated on the same runway, repairpersons must also place rail stops at a safe distance or make other safe provisions.

(4) When repairing runways, repairpersons must place rail stops and warning signs or signals so as to protect both ends of the section to be repaired.

(5) Repairpersons must take care to prevent loose parts from falling or being thrown upon the floor beneath.

(6) Repairs will not be considered complete until all guards and safety devices have been put in place and the block and tackle and other loose material have been removed.