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What Maintenence Does My Indentron Require

The Indentron hardness testing machine has been designed, as far as possible, so that the effect of normal wear and tear does not influence the machines' performance. As a result the need for routine maintenance has been kept to an absolute minimum.

The overriding requirement is that the indenters are handled very carefully, and are stored in a safe place when not in use. The Rockwell diamond indenter is the most vulnerable, and a spare indenter should always be available.

A damaged ball will also give spurious answers, and, if in doubt the ball should be changed.

It is extremely important that the support anvil is clean, flat, and free from marks and bruises. This requirement also applies to the surfaces of the test blocks, especially the under surface they should be meticulously clean. It is necessary that product ion test specimens are properly supported, to prevent any movement during the loading cycle.

The main leadscrew should be lubricated periodically by applying just a few drops of light machine oil. Access to the leadscrew can be obtained by first removing the anvil and bellows. Slacken the collar at the top of the bellows using a 2.5mm Allen key and then lower the bellows. After lubrication, run the leadscrew up and down a few times to distribute the oil. DO NOT OVER LUBRICATE. Refit the bellows by the reverse procedure.