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Preventive Maintenance
Product Support: www.instron.com
Figure 25. Ballnut lubrication
Legend for Figure 25
1. Ensure that the power switch is in the Off (0) position and disconnect the power cable
from the power source. Verify that no LEDs are illuminated on the frame control
panel.
2. Detach the bottom ballscrew cover from the crosshead and slide it to the frame base.
3. Use a grease gun to apply the grease through the ballnut nipples on both columns. It
is not necessary to remove the guide column covers.
4. Fill the ballnuts until grease begins to ooze from the top of the nut. Wipe away the
excess grease.
5. Re-attach the bottom ballscrew cover to the crosshead.
Label Description
1 Ballscrew cover
2 Ballnut nipple
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