SWING SYSTEM RT540E SERVICE MANUAL
6-14 Published 4-20-2015, Control # 502-01
SWIVELS
Description
The swivel assembly (Figure 6-5) consists of a 10 port
hydraulic swivel, a 2 port water swivel, a 2 port refrigerant
swivel and a 20 conductor slip ring electrical swivel. Solid
connections cannot be used to transfer oil, heater hot water
and electricity between the carrier and superstructure due to
the continuous 360 degree swing. The use of swivels
efficiently accomplishes this function.
The barrel portion of the hydraulic swivel is attached to the
turntable base plate by four capscrews, washers and
bushings. The spool portion of the swivel rides upon a thrust
ring at the top of the swivel case. The spool portion is held
stationary with the carrier by bolts, and bolt retainer plates
attached to the swivel retainer plate which engages the
carrier frame lugs with capscrews and hex nuts. This allows
the spool to remain stationary with the carrier as the case
rotates with the superstructure.
The spool portion of the water swivel is integral with the
hydraulic swivel. The hydraulic and water swivel spools
remain stationary with the carrier as the superstructure
rotates. The water swivel case engages to hydraulic case by
four dowel pins.
The electrical swivel center or collector ring assembly is
secured by setscrews to a center post which is bolted to the
spool of the hydraulic swivel. This allows the collector ring
assembly to remain stationary with the carrier. The outer
portion or brush assembly is mounted on two studs which
are located on the mounting plate assembly which is
retained to the water swivel barrel by a bolt. This allows the
brush assembly to rotate with the superstructure around the
stationary collector core.
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