Swivel

3

1 2 184

1 185

Swivel

The swivel (1) is mounted just to the front of the swing motor (2) and below the boom (3).

Since the lower structure does not swing and the upper structure does, a swivel is required to direct oil to and from the travel motors.

186

Various ports in the housing route oil to and from the travel valves in the main control valve group to the travel motors.

The housing is bolted to the lower structure. The upper flange is fastened to the upper structure.

The rotor rotates within the upper structure as the upper structure swings.