Instron 2716 Series, Operating Instructions Manual

Page: 23 / 36

23
Replacing Jaw faces
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4. Where a threaded connection is used, screw parts together completely and then
back off as required to align and orient the grips.
5. With the grips aligned and oriented, hand-tighten the check nuts against the
attachments. You may wish to install a specimen and apply a small pre-load at this
stage before tightening the check nuts.
Replacing Jaw faces
Use flat jaw faces for testing rectangular specimens and vee jaw faces for round
specimens.
Equipment
You need the following items:
•
A dispenser of Molykote g-N paste.
•
A set of jaw faces that are the correct size for the test sample. Refer to “Jaw faces”
on page 18 .
Procedure
1. Rotate the control nut to the fully open position.
2. Rotate the control nut in the opposite direction to remove tension on the slide plate.
3. Loosen the side plate retaining screws.
4. Remove the side plates.
5. Remove the jaw faces.
6. Coat the back and base of the replacement jaw faces with Molykote g-N paste.
7. Place the replacement jaw faces into the grip body, with the taper facing the body
wedge, and locating the face pins into the slots in the sliding plate.
8. Refit the side plates and tighten their retaining screws.