MTS Model 680-01 High-Temperature Grips - Manual (Page 24)

Model 680.01 High-Temperature Grips 24
B. With the connector stud is facing up, add any required shims, spacers,
or spiral washers to the stud. Ensure that the spiral washers are set to
their minimum thickness.
C. Reposition the grip as necessary for proper thread alignment. Slowly
screw the upper grip into the upper element of the force train until it is
snugged tight against the spiral washers. Ensure the spiral washers
remain set to their minimum thickness.
4. Align the grips.
Orientation is not critical. Just orient the grips so the hoses and water tubing
lines will provide the least interference with future work activities around
the load unit. You may also want to align the grips so that you can see the
view port which is helpful during specimen installation.
• It may be possible to rotate the actuator rod to achieve the desired
orientation. If the actuator rod cannot be rotated, remove the lower grip
and install shim washers between the spiral washers and the lower
element of the force train. Reinstall the grip (go to Step 2).
• It may be possible to rotate the force transducer when preloading the
spiral washers (see Step 5). If proper alignment of the force transducer
is not possible, remove the upper grip and install shim washers between
the spiral washers and the upper element of the force train. Reinstall the
grip (go to Step 3).
5. Tighten the grips.
See the appropriate procedure to preload the connector stud and return to
this procedure when done.
6. Connect the hydraulics.
The hydraulic source to operate the grips is from a hand-operated hydraulic
pump. Install the hand-operated hydraulic pump according to the
appropriate procedure, and return to this procedure when done.
Using the provided hydraulic hoses, make connections between the pressure
ports on each grip and the ports on the hand-operated hydraulic pump.
7. Install the cooling kit.
Install water hoses to the grips according to the appropriate procedure.