Measurements 5 - 19
Siemens AG SPR8-125.061.02 Page 19 of 20 POLYMOBIL Plus
Medical Engineering Rev. 01 01.00 TD SD 24
Testing and readjusting the counterbalance 5
• Loosen the rotating knob (2/Fig.20) and unlock the C-arm (1/Fig.20).
It should be possible to move the C-arm without any attached accessories easily across
the whole range and the arm should come to a stop in any desired position.
Readjusting the counterbalance with accessories attached 5
If the C-arm with accessories attached does not come to a stop in any desired position,
readjust the spring tension for the counterbalance.
• Remove the cover (3/Fig.20) at the stand.
• Release the supplemental brake at the C-arm (2/Fig.20) completely.
• Move the C-arm into a vertical position.
• Tighten the screw using a 17 mm Allen key (4/Fig.21).
Adjust the spring tension in such a way, that there is a balance when the C-arm is in a
vertical position, i.e. that equal force is required to lift and lower the tube assembly.
4
1
2
3
Fig. 20 Fig. 21
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