The swing motor is mounted on top of the swing
gearbox in the center of the turntable. After the
brake which is located on the top of the swing
brake releases, the motor drives the gearbox through
Apply a thin film of silicone RTV sealant
Ensure the swing brake is engaged.
Remove dirt, grease, or moisture from
Clean the port area around the motor. Tag
the surface of the carrier and housing.
and disconnect the hydraulic hoses from the motor
Dry the surface.
Apply a thin bead, maximum 0.125 in.
Pull straight up on the motor assembly to
(3.175 mm) diameter, completely around one
avoid damaging the splined shaft.
mating surface and all fasteners holes to
ensure complete seal and prevent leaks.
Remove the bolt and washers securing the
motor and lift the swing motor free.
Assemble the components immediately
to permit silicone RTV gasket material to
Use care when engaging the swing
motor drive gear with the brake. Do not
Minor concentrations of acetic acid vapor
force the shaft to engage.
may be produced during application.
Adequate ventilation should be provided
Install the swing motor on the swing brake with
when silicone RTV is applied in confined
the capscrews and washers. Torque the bolts to 121
lbs-ft (164.0 Nm).
Connect the hydraulic hoses to the swing
Eye contact with these silicone RTV
materials may cause irritation, if eye
contact takes place, flush the eyes with
water for 15 minutes and have the eyes
Test swing of superstructure in each direction.
examined by a doctor.
Stop and start swing several times.
Inspect for hydraulic leaks and repair as