Instron 2603-080, Справочное руководство

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Chapter: Installation
2-8 M26-16269-EN
5. Remove the thumb nuts, washers and bolts from the arms. Slide the arms over the top of
their respective carriages, as shown in Figure 1-1 and Figure 3-1 . Replace the thumb
nuts, washers and bolts.
6. Plug the extensometer into the 25-way socket on the machine. Ensure that the spring
clips on the extensometer are gripping the panel.
7. Insert the four M6 jacking screws into the support plates such that they just touch the
extensometer head plate.
Extensometer Alignment on Two Column Machines
The vertical axis of the extensometer must to be adjusted to be parallel with that of the two
column load frame. To align the extensometer:
1. Move the carriages to one end of the guide rod.
2. Check that the testing area is free from obstruction and place a straight edge on the
crosshead, touching the guide rod as shown in Figure 2-5 .
3. Move the crosshead the maximum possible distance and check the alignment between
the rod and the straight edges at the extremities of travel.
4. Adjust the jacking screws in pairs until the guide rod is aligned to within 1 mm over the
full travel of the crosshead. Note that one (1) revolution of the jacking screws = 6 mm.
To prevent the extensometer rocking after alignment, ensure that all four jacking screws are
in contact with the support plates (or head plate).
Figure 2-5. Extensometer Alignment
Guide Rod
Straight Edge
Crosshead