TM 5-3810-307-24-1-1
SWIVELS
DESCRIPTION
The main swivel installation is a two part assembly
The center of the electrical swivel, or collector core
consisting of a 14 port air/hydraulic swivel, and an
assembly, is secured by setscrews to a center post
electric swivel. Solid connections cannot be used to
which is bolted to the spool of the air/hydraulic swivel.
transfer oil, or electricity between the carrier and
This holds the collector core assembly stationary with
superstructure due to the continuous 360 degree
reference to the carrier.
swing. The use of swivels efficiently accomplishes this
function.
The outer portion of the swivel, consists of brush
assemblies mounted on studs threaded into the swivel
The barrel portion of the air/hydraulic swivel is attached
base plate/mounting bracket, enclosed in a protective
to the superstructure by four bolts which connect to
cover. This assembly is attached to a bracket on the
mounting lugs on the barrel. The spool portion of the
turntable bearing plate which rotates with the air/
swivel rides upon a thrust ring at the top of the swivel
hydraulic swivel barrel and superstructure.
barrel. A retainer arm bolted to the bottom of the
spool, keeps the spool aligned with the carrier. The
The electrical swivel also includes cam plates which
other end of the retainer is keyed to a lug on the carrier
actuate micro switches to provide area definition
frame, which allows the retainer to float, so that the
switching needed for steering, axle oscillation lockout
swivel does not bind, as the barrel rotates with the
functions.
superstructure.
