Maintenance
98
MTS Landmark™ Tabletop Load Units - Product Information
Warning:
Over time, repeated cycling and stress pressures on the cap screws can cause cap
screw failure.
The cap screw can become a projectile, resulting in equipment damage and personal injury.
After 5 years or 5500 duty cycles, contact MTS for replacement of the hydraulic crosshead lock
cap screws.
1. Turn on electrical power at the controller. Do not turn on hydraulic pressure yet.
2. If the crosshead is already at a comfortable working level with no specimen installed, proceed
to Step 3.
If not, position the crosshead to a comfortable working level.
A. Reset any active interlocks at the test controller.
B. Turn on high hydraulic pressure.
C. If there is a specimen in the load unit, remove it.
D. Move the crosshead to a comfortable working height.
Caution:
The crosshead can slowly drift down the columns if the locks are turned off and
when hydraulic pressure is turned off.
The crosshead can damage any test fixtures, grips, and specimen in its path.
Unlock the crosshead only to reposition it. Always lock the crosshead after you
have repositioned it and never leave the crosshead unlocked.
3. Use the Lock Control to lock the crosshead. Then torque the manual crosshead locking bolts
in the order shown in the following illustration.