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
6.
Caution:
The contact area between the wedge face and specimen should be as large as possible.
A small contact area between the wedge face and specimen can cause premature wear to
the wedge face surface.
MTS recommends that specimens should be machined to provide the largest possible surface
contact area between the wedge face and the specimen.
Caution:
Wedges can be installed incorrectly.
Improper specimen installation can damage the wedges.
Install the specimen in the wedges precisely as specified in the following steps.
Place the specimen in the lower grip allowing a space of at least 3 mm (0.12 in) but not greater than 6
mm (0.25 in) between the bottom of the specimen and the bottom inner edges of the lower grip wedges.
Lock the lower grip.
DescriptionItem
Wedge Face1
Contact Area (HxW)2
Bottom Gap Specification (3-6 mm)3
Large contact area recommended.4
Small contact area can cause premature wear.5
Series 647 Hydraulic Wedge Grips Reference Manual 89
Operation