Saddle

A vertical support mechanism to hold the casing in position while starting (collaring) the bore.

Saddle Machine

See Cradle MachineA boring machine typically carried by another machine that uses winches to advance the casing..

Safety Factor

As used in determining reinspection interval; a fractional multiplier, based on priority rating, to ensure sewer segment reinspection prior to becoming not fit for use.

Safety Glasses

EyeThe opening in the shaft wall through which the MTBM is launched. protection to be worn at all times.

Safety Sign

A notice attached to the machine which advises the nature and severity of a potential hazard which can cause injury or death. It can also provide instructions to reduce or eliminate the hazard.