User Manual
Table Of Contents
- Technical Support
- Preface
- Introduction
- Overview Reference
- Series 647 Hydraulic Wedge Grips Component Identification
- Series 647 Hydraulic Wedge Grips Functional Description
- About Gripping Specimens
- About Wedges
- About Spiral Washers
- About Couplings
- About All Temperature Grips
- About Environmental Chambers
- Hydraulic Fluid Recommendations
- Cooling Water Specifications
- Series 647 Wedge Grip Temperature Ranges
- Series 647 Hydraulic Wedge Grip Force and Torque Capacities
- Safety
- General Safety Practices: Grips and Fixtures
- Read all manuals
- Avoid Pinch and Crush Points
- Locate and read hazard placards/labels
- Know facility safe procedures
- Know controls
- Know Specimen Properties
- Have first aid available
- Be aware of component movement with hydraulics off
- Keep bystanders safely away
- Wear proper clothing
- Remove flammable fluids
- Check bolt ratings and torques
- Lift Equipment Safely
- Practice good housekeeping
- Do not exceed the Maximum Supply Pressure
- Do not disable safety devices
- Provide adequate lighting
- Provide means to access out-of-reach components
- Wear appropriate personal protection
- Handle chemicals safely
- Know system interlocks
- Know system limits
- Do not disturb sensors
- Ensure secure cables
- Stay alert
- Contain small leaks
- Stay clear of moving equipment/avoid crush points
- Know the causes of unexpected actuator motions
- General Precautions for Environmental Components
- Hazard Placard Placement
- General Safety Practices: Grips and Fixtures
- Installation
- Operation
- Maintenance
Caution:
The wedges can rust.
Over time, rust can damage the wedges.
Use cloth or latex gloves when handling the wedges. Also coat the wedges with LPS (a rust
preventative oil) and place them in their original packing material for storage.
Attach the wedge to the wedge installation tool.
Note:
The grip must be in the fully open position for wedge replacement.
2. Apply a thin film of Molycote Gn Paste to the wedge contact surface on the new wedge. Apply a thin film
of Molycote Gn Paste to the bracket surface that rides against the spring block.
3. Set the wedge into the grip body such that the t-nut goes into the t-slot guide in the grip body.
4. Slide the wedge back against the grip body.
5. Remove the wedge installation tool.
6. Secure the wedge to the grip body.
7. When both wedges have been secured, install the stop bolt in the threaded hole in the center of the t-slot
guide.
Install Model 647.250 Wedge Liners
Note:
The callouts in the following figure relate to the procedure steps.
1. Secure the liner to the wedge attachmet bar.
2. Secure the wedge attachment bar to the wedge.
Series 647 Hydraulic Wedge Grips Reference Manual 87
Operation