Position the crosshead manually – MTS Landmark Tabletop User Manual

Page 59

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Bionix grips and other specialty grips (mechanical) are designed to grip specific types of material such
as string, tread, tendons, and so forth.

Each type of grip requires the specimen or specimen fixture to fit properly into the grip. You should always
review specimen installation procedures found in any grip Product Information manual.

Caution:

Incorrectly installed specimens can be a hazard during testing.

An insufficiently gripped specimen can cause specimen damage, equipment damage, and
the possibility of specimen fragmentation.

Before testing, ensure both grips are clamped and the specimen is secure.

4. Set up the load frame for testing.

a) Set the actuator velocity limiting switch to the hare (full flow).

b) Disable the handset and set up the controller for system operation.

5. Reset the controller Gate Interlock.

6. Apply load unit station high hydraulic pressure.

Position the Crosshead Manually

This procedure describes how to position a crosshead for a load unit with no hydraulic crosshead lifts or locks.

Warning:

The crosshead is very heavy.

A dropping crosshead can crush hands, damage grips, and smash specimens.

Observe the following precautions to reduce the possibility of unexpected crosshead movement:

Ensure that the crosshead is locked.

The overhead crane and lifting chains must be able to support the weight of the crosshead.

Center the crane directly over the load unit. Remove any slack in the lifting chains before unlocking
the crosshead.

Remove any slack in the lifting chains before unlocking the crosshead.

Completely loosen all crosshead locking bolts before attempting to move the crosshead.

Keep the columns clean and dry. The crosshead cannot be securely clamped to greasy or damp
columns.

MTS Landmark™ Tabletop Load Units Product Information 59

Operation

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