MTS Series 647 Hydraulic Wedge Grips - Manual (Page 67)

Description Item Description Item
Upper Extension Rod 11 Shim Washer 2
To Water Valve 12 Spiral Washer Set 3
Water to Lower Extension Rod 13 Environmental Chamber Top 4
To Upper Extension Rod 14 Hydraulic Pressure and Return Lines 5
To Water Drain Connection 15 Hydraulic Pressure and Return Lines 6
Lower Extension Rod 16 Environmental Chamber Bottom 7
Actuator Rod 17 Hydraulic Pressure and Return Lines 8
Load Unit Base Plate 9
High temperature equipment
Using an environmental chamber requires:
• Hydraulic plumbing capable of withstanding the temperature extremes
• Extension rods which are connected to the grip and extend through the environmental chamber for
connection to the rest of the force train
• A heating/cooling kit
• A self contained hydraulic grip supply with high-temperature hydraulic fluid
Install Extension Rods
The following procedure provides general guidelines for installing the Series 647 Grips in an environmental
chamber. See your load unit product manual for the required clearances between moving parts of the force
train.
The following procedure assumes that the actuator is mounted in the base of the load unit and the force
transducer is mounted to the crosshead. If you have a load unit with the actuator mounted to the crosshead,
make the appropriate changes to the following procedure. Refer to
Extension Rod Installation Components
on page 66
1.
Warning:
Grip installation is dangerous because it occurs within the crush zone of the force train while
full hydraulic pressure is applied and actuator movement is required during the installation.
Unexpected actuator movement can cause personal injury and damage to the equipment.
Take every precaution to avoid unexpected actuator movement while installing the grips.
Set up the load unit.
a) Turn on the system hydraulic pressure.
Series 647 Hydraulic Wedge Grips Reference Manual 67
Installation