MTS Series 315 Load Frame - Manual (Page 24)

Series 315 Load Frame 24 Installation
Connecting Hydraulics
The procedure describes how to connect the load frame to the hydraulic
power source. The load frame can be connected directly to the hydraulic
power unit (also called HPU), to hydraulic plumbing in the workplace, or
through a hydraulic service manifold (HSM).
Note The internal hydraulic connections from the actuator manifold and
accessories such as the hydraulic lifts and locks should already be made.
The load frame actuator usually has a manifold mounted to it. The
manifold connects the ports on each end cap to the ports for a servovalve.
The hydraulic connection are made at this manifold.
1. Connect the return line from the hydraulic power source to the
hydraulic port on the manifold labeled “R”.
2. Connect the pressure line from the hydraulic power source to the
hydraulic port on the manifold labeled “P”.
3. Connect the drain line from the hydraulic power source to the
hydraulic port on the manifold labeled “D”.
4. Turn on the HPU and check for any hydraulic pressure leaks.
5. Select low pressure for the load frame and check for hydraulic leaks in
the load frame.
6. Select high pressure for the load frame and check for hydraulic leaks
in the load frame.
7. Return to the installation procedure.