MTS Model 680-01 High-Temperature Grips - Manual (Page 36)

Model 680.01 High-Temperature Grips 36
Hydraulic power will be applied to the systems hydraulic actuator during the
following steps.
This can cause personal injury and/or equipment damage.
Exercise caution to avoid having your hands pinched while working near the load
unit while hydraulic pressure is applied. If a high-temperature furnace is installed
in the load unit, exercise extreme care to prevent the actuator from applying any
force to the furnace; severe furnace damage will occur even if minimal force is
applied to the furnace.
8. Apply low hydraulic power to the system.
9. Select force control and adjust the actuator until the lower specimen adapter
just contacts the specimen.
Note When force control is selected to control the actuator and the force
command is set to zero, the actuator will automatically move the proper
amount when you screw the specimen into the specimen adapter.
10. While holding the specimen to prevent it from rotating, screw the specimen
into the lower specimen adapter by rotating the lower grip extension until
the specimen end is centered in the viewing port. (The extension rod has
flats for a 1-1/8” open end wrench.)
11. When satisfied that the specimen is properly installed (specimen adapters
fully screwed into grip extensions, specimen ends in centers of the viewing
ports), actuate the hand-operated pump until the required hydraulic pressure
is shown on the pressure gage.
WARNING