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Genesis GXT Mobile Shear 21
ROTATOR INSTALLATION
The rotator requires a 1/2” minimum case-drain line with
a minimum working pressure rating of 250 PSI.
Run the
case-drain line from the rotation head of the shear to
a dedicated filter on the excavator, plumbed directly
into the main section of the hydraulic tank. Do not
plumb to the return side of the tank.
The maximum case-drain pressure measured at the motor
while attempting to rotate the shear stalled on the ground
is 40 PSI for an axial piston motor. Gerotor type motors
may or may not require a case drain. If 3 O-ring face seal
bulkheads are present on your sub-head, a case drain is
required. If you are unsure of your motor type or if a case
drain is required, contact the Genesis Parts or Service
Departments with the serial number of your shear. Case-
drain pressures will rise during cold weather operation.
Use the correct fittings. Secure the case-drain line to the excavator stick.
Do not plumb the case-drain into the main return
system or into any other existing case drain or return
circuit. Plumb only to the hydraulic tank.
NOTICE
GXT 115-335 Rotation Motor
The gerotor motor is a direct drive motor.
GXT 445 and Larger Rotation Motors
A piston motor is now the standard motor for models
GXT 445 and larger. Piston motors are used in overhead
demolition and material handling applications that
require fine control and solid load holding capabilities.
These motors are more expensive and require
additional plumbing but have advantages in load-holding
applications.
On early GXT 445 and larger models, a gear motor
was the standard motor. This motor is for processing
applications where the shear is usually working vertically,
such as in scrap yards and on demolition sites where
material is on the ground. These motors may slowly drift
or rotate in material handling applications.
-6 Flatface
Case drain
Gear Motor
Piston Motor
Gerotor Motor
