MTS Landmark Tabletop - Manual (Page 89)

Torque Load Unit
190 N·m (140 lbf·ft) 370.10
271 N·m (200 lbf·ft) 370.25
271 N·m (200 lbf·ft) 370.50
7. Repeat Steps 4 and 5 until all the bolts have been lubricated.
Aligning the Force Transducer
A force transducer must be aligned with the actuator piston whenever the force transducer is installed or the
actuator serviced. The force transducer can also be aligned whenever you want to increase test accuracy.
Alignment has two major tasks:
• Find the Current Total Indicated Runout (TIR)
• Get the TIR within Specifications
TIR measures alignment accuracy and it is the difference between maximum and minimum dial indicator
readouts. The smaller the TIR, the better.
Required Equipment
You will need the following equipment to align a force transducer:
• 135 N·m (100 lbf·ft) torque wrench
• Nylon mallet
• 0.0025 mm (0.0001 in.) dial indicator with a magnetic base
Align the Force Transducer
Warning:
Alignment takes place in a crush zone.
The crosshead could drop suddenly, crushing hands and damaging load unit components.
Be sure you lock the crosshead, turn off electrical power, and use the clamp ring as described
in the following procedure.
1. Get things ready:
a) Be sure that the crosshead is locked.
MTS Landmark™ Tabletop Load Units Product Information 89
Maintenance