MTS 316 Load Frame - Manual (Page 13)

Hydraulic Configurations
Series 316 Load Frame Product Information Operation 13
Operation
Procedures in this section assume the operator is familiar with all operating
aspects of the system electrical controller and interlock restrictions that apply to
starting the hydraulic power supply.
The operation instructions for the Series 316 Load Frame include specimen
mounting for Uni-axial and Direct Shear configurations. The instructions also
describe insertion of MTS Model 656 Tri-axial cells. Please see the appropriate
Tri-axial instruction manual for specimen preparation and insertion inside the tri-
axial cell.
Hydraulic Configurations
Series 316 Load Frames are provided with hydraulic service manifolds for
control of hydraulic pressure. Systems configured for direct shear applications
are provided with a Model 293 hydraulic service manifold for control of
hydraulic pressure to the axial and direct shear actuators; refer the the 293.1x
Hydraulic Service Manifold Product Information, part number 015081000, for
additional information.
Attached to the return pressure lines is a dump solenoid that will direct return-
line hydraulic pressure to the drain line following shutdown. Shutdown without
a dump solenoid would cause the actuators to slowly drift because the actuators
have unequal area pistons.