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ABI Prism® 7900HT Sequence Detection System ... - OpenWetWare

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7-6 <strong>System</strong> Maintenance<br />

To remove the sample block: (continued)<br />

Step Action<br />

8 Using a 5/16 inch Hex key, turn the sample block locking bolt counter-clockwise<br />

until it is very loose, but still attached to the sample block locking bar.<br />

Note Some instruments may require the use of an adjustable crescent wrench to<br />

loosen the sample block locking bolt.<br />

9 Loosen the thumb screw securing the sample block locking bar to the instrument<br />

chassis (may be a 5/32 Hex bolt on some instruments).<br />

GR2025b<br />

GR2024<br />

GR2024b<br />

Sample block locking bar<br />

Sample block locking bolt<br />

10 Lift the sample block locking bar up and out of the instrument.<br />

GR2025b<br />

Thumb screw<br />

11 Remove the sample block from the instrument as follows:<br />

a. Rotate the release lever at the base of the sample block 90 degrees.<br />

GR202<br />

b. Being careful of the cooling fins on the bottom of the sample block, slide the<br />

sample block out of the instrument and place it on a clean, level surface.<br />

GR2027

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