GENERAL MAINTENANCE - Continued
Safety Wiring Procedures
The double-twist method of safety wiring is used as the
c o m m o n method of safety wiring. Use the double-twist
method for screws in closed geometric patterns which secure
hydraulic or air seals, hold hydraulic pressure, or are used in
critical areas of clutch mechanisms.
When safety wiring widely spaced multiple groups (fastenings
from 4 to 6 inches apart) by the double-twist method, three
units are the maximum number that may be wired in series.
When safety wiring multiple groups, the maximum number of
units that may be safety wired is limited to the number that
can be wired with a 24 inch length of wire.
The single-wire method is used in a closely spaced (maximum
o f 2 inches between centers), closed geometric pattern
(triangle, square, rectangle, circle, etc.) on parts in electrical
systems and in similar places that would make the single-wire
method more feasible. Use the single wire method for shear
and seal wiring applications.
Use copper wire only for securing emergency devices and
install so that it can be easily broken when required.