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MTS Tension Compression Grips User Manual

Page 14

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2-8

Operation

12.

Apply full system hydraulic pressure according to applicable
system procedures. Use extreme care not to cause rapid
actuator movement when performing the following steps.

WARNING

Placing hands in the crush zone between the Grip faces
with hydraulic pressure applied and the actuator moving is
dangerous.

This can result in injury to personnel and damaging forces
being applied to the specimen.

Keep hands out of the crush zone while performing the following steps.

13.

Adjust the position of the actuator or crosshead until the
specimen just contacts the upper grip base.

14.

Remove system hydraulic pressure.

Place upper

collar over

specimen and

rest it on lower

collar

Extend actuator until

specimen contacts

upper grip base

Thread adapter

on specimen

Slide upper

collar over

threaded

adapter

Secure with socket

head cap screws

Ensure equal

measurement all

the way around

Figure 2-5. Threaded Specimen Installation (Upper Grip)