Mi propuesta.

...that require the removal, by-passing, or deactivation...
...que requieran remover, hacer un baipás o desactivar...

una opcion

by-passing, or deactivation of safe guarding devices.=
=bypasear o desactivar los dispositivos de protercción.

http://www.proz.com/kudoz/english_to_spanish/energy_power_ge...

HTH

Saludos :)

"By contrast, using the same table saw, it may be necessary for the employee to remove a piece of wood which has become jammed against the blade of the saw. In doing so, the employee might need to **bypass** or remove the guard on the saw and reach into the point of operation."
https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_tab...

"What Are Guards?
Guards are physical barriers that enclose dangerous machine parts and prevent worker contact with them. Guards must be secure and strong. Workers should not be able to **bypass**, remove, or tamper with guards. To prevent tampering, guards typically require a tool to unfasten and remove them."
https://www.osha.gov/Publications/OSHA3170/osha3170.html

"Muchas máquinas poseen zonas de peligro en las cuales puede ser atrapado por partes móviles. No **esquive** o remueva las protecciones que pueden protegerle en zonas de peligro."
https://www.bookstore.ksre.ksu.edu/pubs/MF2758S.pdf

En este contexto, by-passing significa, como bien dicen John y Kirsten arriba, omitir los mecanismos de seguridad.

...labores que requieran desmontar, omitir o desactivar los mecanismos...
...labores que requieran desmontar, sacar de servicio o desactivar los mecanismos...