MTS Model 685.53 Grip Control Module - Manual (Page 21)

Gripping Specimens
Model 685.53 Grip Control Module Operation 21
Gripping Specimens
Prerequisite
This procedure assumes that the output pressure has been adjusted.
Have the appropriate grip product information manual handy for more specific
specimen mounting information.
Do not put anything in a crush zone when turning on hydraulic power.
Unexpected actuator movement can occur when hydraulic pressure is
turned on. This can cause personal injury or equipment damage.
Be sure you read and understand all safety information provided with your
system. Follow all applicable system operating procedures before turning on
hydraulic power.
Also, make sure that all systems or equipment that use the same hydraulic power
source are in appropriate condition for application of hydraulic power.
1. Select a force control mode to control the actuator.
Select force control at the system controller and use the most sensitive
(lowest load) range available.
If your controller has a channel-limited-channel control mode for specimen
installation, use one defined with displacement control and force limiting.
2. Release the grips.
Make sure that both grip controls are in the release position.
3. Apply full system hydraulic pressure.
Use applicable system procedures to turn on the system hydraulic pressure.
WARNING