MTS Series 322 Load Frames - Manual (Page 79)

Series 322 Load Unit Maintenance 79
Preloader collar mount
only
The following procedure applies only to force transducers that are mounted
to the crosshead using a preload collar.
Loosen the six jack bolts or setscrews in 1/4 turn steps to remove most of the
tension on the preloader collar, following a standard crisscross torque
sequence.
• If your preloader collar has jackbolts, remove and lubricate them one at
a time. Lubricate the washer underneath the jackbolt. After you
reinstall the jackbolt, tighten it enough to keep the force transducer
pulled firmly against the crosshead.
• If your preloader collar has captive setscrews, unscrew them one at a
time. Lubricate the washer underneath the setscrew. Then retighten the
setscrew just enough to keep the force transducer pulled firmly against
the crosshead.
Preloader Collar Bolts
5. Align the force transducer.
This step describes how to align a force transducer to the crosshead.
A. Lightly tap the transducer with the rubber mallet to change its position
until you get a TIR of 0.038 mm (0.0015 in) or less.
1 6
4
2 5
3
Remove, one at a time
G-n paste