MTS Series 256 Servovalve User Manual
Page 23
Series 256 Servovalve Product Information
Installation
23
Installation
This section describes how to install a Series 256 Servovalve. This procedure
assumes that all electrical and hydraulic power to the system is off, and that the
residual hydraulic pressure in the system is at zero.
Contents
How to Mount the Main Stage 23
How to Mount the Pilot Stage 24
Mixing different brands of hydraulic fluid can contaminate your system.
Contaminated hydraulic fluid can cause premature wear of the hydraulic
components in your system.
Do not mix different brands of hydraulic fluid. MTS Systems Corporation
recommends using Mobil DTE-25 or Shell Tellus 46 AW hydraulic fluid.
An active system has electrical or hydraulic power turned on.
Disturbing components of an active system can cause unexpected actuator
motion and result in injury to personnel and/or damage to equipment.
Before installing or replacing a servovalve, ensure that all electrical and hydraulic
power to the system is off, and residual hydraulic pressure in the system is at
zero.
How to Mount the Main Stage
To mount the main stage and manifold to an actuator:
1. Remove any cover plates from the main stage and actuator manifold ports.
2. Ensure that all O-rings are in good condition.
3. Lubricate all O-rings with a light film of hydraulic fluid and place in their
proper positions.
4. Mount the main stage body onto the actuator manifold and align the
mounting holes.
5. Lubricate the main stage mounting screws with a light film of hydraulic
fluid and tighten the mounting screws to:
CAUTION
WARNING