MTS Material Test Systems - Manual (Page 55)

Summary
Servo loop adjustments are experimental and the operator should become familiar with the effects of these
adjustments while using dummy specimens during both dynamic and static system operation.
Because each adjustment can have some effect on the others, adjustments to the servo loop should be made
using several iterations. This iteration sequence is provided in the operation section of this manual.
6.5.0 Determine the Crosshead Position
For balanced system operation, the load frame crosshead must be positioned so that the based-mounted
actuator piston rod will be at approximately midstroke when the specimen is installed into its upper and lower
fixtures/grips.
For detailed information on crosshead operation and specimen mounting considerations, refer to the load
frame product manual.
MTS Material Test System Operation 55
6.0 Getting Started