Installation Guide
Replacing the needle guide in the needle support foot
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Caution Be careful not to bend the needle during installation.
Caution Do not operate the injector without a syringe in place because the free swinging
syringe latch may interfere with the motor.
10. Install the syringe. See your sampler Operation Guide for details.
11. Move the slide up and down to make sure the needle is aligned with the
needle guide in the support foot. The needle should slide smoothly in the
needle guide.
Replacing the needle guide in the needle support foot
When using the HP accessory 18599T for 250-/320-µm cool on-column injections,
the needle guide is replaceable. Check the needle guide in the needle support
foot for wear whenever you change the inlet septum. When the needle guide
shows signs of wear, replace it as described below:
1. With an Allen wrench, remove the screw from the needle support foot.
2. Remove the small metal plate from the foot.
3. Replace the needle guide.
4. Replace the metal plate.
5. Replace the screw and tighten.
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