User Manual

DescriptionItemDescriptionItem
Upper Extension Rod11Shim Washer2
To Water Valve12Spiral Washer Set3
Water to Lower Extension Rod13Environmental Chamber Top4
To Upper Extension Rod14Hydraulic Pressure and Return Lines5
To Water Drain Connection15Hydraulic Pressure and Return Lines6
Lower Extension Rod16Environmental Chamber Bottom7
Actuator Rod17Hydraulic Pressure and Return Lines8
Load Unit Base Plate9
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