Chapter 3: Operation
44 M47-17027-EN
General use guidelines
It is important to obey the following guidelines when using the grip assemblies:
• For frames with G1-style crossheads: Use sufficient filler plates.
• Be sure to properly maintain the grip assemblies as outlined in “Grip assemblies - G1-style and
G7-style crossheads” on page 72.
• Keep grip components well lubricated as instructed in grip jaw installation procedures and in “Grip
assemblies - G1-style and G7-style crossheads” on page 72. It is important that the lubricant
on the grip components is always moist and is not dry, clumped or dirty.
Use of Molykote type GN metal paste (high pressure lubricant) is necessary for proper
operation of the grips. Instron recommends only this brand and type of high pressure
lubricant. Use of any other lubricant risks damage to the grip components. This damage
would not be covered under warranty.
• Make sure the specimen is centered in the grip jaws.
• For frames with G1-style crossheads: Keep the grip jaws centered in the grip pocket by using an
equal number of filler plates behind each grip jaw.
• Keep the ends of each pair of grip jaws even.
• Use the proper type of grip jaws for your specimen.
• DO NOT lubricate the gripping face of the grip jaws.
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