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18.4.2 SR Error Appears During Initialization Process:
• Check the washing head for contamination (blood and salt)
• Contact service
18.4.3 The SR Does Not Turn Into the Analyzer Even With Open Front Panel
• Check the washing head for contamination (blood and salt)
18.5 Needle Mechanics, Vertical Motor (Mvert) Problems
18.5.1 The Needle Carriage Keeps Dropping Back (Down) At Initialization
• Is the wash head and its surrounding free of any salt build-ups?
• Salt build up or thick salt layer at the bottom or on the inside can block the
movement of the needle in the wash head (or the movement of the wash head
around the needle if you like).
• The through hole of the needle in the vertical carriage should be free of salt.
• Salt around the needle can even damage the needle and can influence the
sampling process, or sampling quality or amount of sample.
• The wash head position relative to the needle and to the SR is not correct.
• The wash head comes down too much, and even if lifted, leaves no room for
the SR door to turn.
• The vertical rod holding the wash head (if removed or modified) is not inserted
correctly. The rod was not pushed up to the maximum, and the wash head is
sitting in a position too low.
18.6 Shear Valve (SV) Related Errors
18.6.1 SV Error at the First Startup
• The SV cannot turn:
- Make sure that the pull tab has been removed
- Check free movement by hand (rotate the shear valve)
• The SV is stuck:
- Try to open the Shear Valve
18.6.2 Grinding Noise after SV Cleaning, (after SV Reinstallation)
• The rotating part cannot reach opto position
• The lower disc is not aligned correctly – see section SV cleaning
- Contact service for guidance
18.6.3 SV Leakage
• The upper disc is not sitting well on
the lower disc
• Open, and reseat the upper disc
• There must not be any opening left
between the closing screw and the
upper disc
Figure 108. Screw position of shear valve
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