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MTS 85X Damper User Manual

Page 26

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Damper System Operation

26

System Startup

Getting Started

A.

Press the Hydraulic Pressure Low switch to start the HPU and apply
low hydraulic pressure to the actuator (the Off indicator will extinguish
and the Low indicator will light).

B.

Observe the actuator for any movement caused by hydraulic fluid
pressurizing the system. Ensure that the actuator stabilizes before
proceeding.

C.

Press the Hydraulic Pressure High switch to apply high hydraulic
pressure to the actuator (the Low indicator will extinguish and the
High indicator will light).

5. Slowly adjust the Set Point control on the controller and observe piston

movement. The direction and response should be appropriate for the system
configuration. The system phase can be determined as follows:

If the Set Point control is adjusted in a negative direction and the
actuator retracts, then the system is set for a positive phase.

If the Set Point control is adjusted in a negative direction and the
actuator extends, then the system is set for a negative phase.