Chapter: Installation
28 M10-14052-EN
Checklist
Before you install the faces, check for the following:
• The grips are in the open position.
• The jaw faces are the correct size for the test specimen.
• There are no jaw faces or specimen in the grips.
Procedure
Hazard - Do not perform any testing if the side plates are not in place.
The side plates secure the jaw faces and prevent the jaw faces from moving side to side.
This type of motion can create a hazardous condition for both the system and operator.
On the 50 kN grips, there is an available spacer, which performs the same safety
function as the side plates but also reduces the space between the jaw faces. The
spacer is necessary when testing thinner specimens. When using the 50 kN grips, either
the side plates or the spacers must be in place before you perform any testing. Refer to
“Installing the Spacers and Side Plates” on page 29 for installation instructions.
To install the jaw faces:
1. Coat the back and base of the jaw face with Molykote g-N paste. Do not remove the
side plates located on the grips.
If you are using a 2716-020 (50 kN) wedge grip, you may need to remove the side
plates in order to install the spacers. Before operating the system, ensure that either
the spacers or side plates are securely fitted to the grips. Refer to “Installing the
Spacers and Side Plates” on page 29 for additional information.
2. Place the jaw face, with the taper facing the head wedge, in the center of the head
slot and slide it towards the wedge. Figure 7 on page 29 illustrates the jaw face
installation.
3. Ensure that the side plates are secure and that the jaw face has no sideways
movement. If a side plate is loose, tighten it using a hex wrench.
4. Attach the springs from the spring retainer pins to the post on each side of the jaw
face.
5. Repeat Step 1 through Step 3 for the remaining three jaw faces.
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