Lorad M-IV C-arm Problem

Three compression settings are available:
• Pre
• Dual
• Full
Note While the compression carriage may be moved
manually (by rotating the compression knobs),
the chain will not engage until compression is initiated
using the motor drive.
Force Calibration
Perform this calibration after replacing the compression
clutch assembly or the compression drive assembly.
1. Rotate the c-arm to 0°.
2. Enter Calibration Mode (S6-4=On).
3. Select Motor Control Calibration (S4=5, S6-8=Off).
4. Press SELECT (S2) until cfrc20 is displayed (some
older software versions have only one setpoint at 40
lbs).
5. Install an 18X24 cm Bucky.
6. Center a force gauge on the Bucky and cover with a
folded towel.
7. Install an 18X24 cm compression paddle.
8. Manually apply force to the paddle until the force
gauge reads 20 lbs.
9. Press S1 to record the setting.
10. Press S2 until cfrc40 is displayed.
11. Manually apply force to the paddle until the force
gauge reads 40 lbs.
12. Press S1 to record the setting.
13. Release the paddle.
14. Slowly apply force to the paddle and compare the
force gauge with the Compression Carriage Force
display. Readings should be within the specified
ranges:
Less than 35 lbs: ±3 lbs
More than 35 lbs: ±5 lbs
15. Release the paddle and repeat for 90° and 180° carm
positions.





Thickness Calibration

1. Enter Calibration Mode (S6-4=On).
2. Select Motor Control Calibration (S4=5, S6-8=Off).
3. Press SELECT (S2) until chtxxxx is displayed.
4. Install an 18X24 cm Bucky and 18X24 cm
compression paddle.
5. Center 5 cm of breast equivalent material (BEM) on
the Bucky
6. Manually apply 30 lbs of compression
7. Press S1 to record the setting.
8. Release the paddle.
9. Slowly apply force to the paddle until the
Compression Device displays a thickness of 5 cm.
The Compression Thickness display should also
read 5 cm.
10. Repeat for the Mag Stand.
Compression Chain Tension Calibration
1. Remove the cover to the lower compression
carriage.
2. Manually move the compression device to the full up
position.
3. Loosen the bolts holding the compression chain
sprocket to the c-arm frame.
4. Evenly adjust the sprocket tension screws so the
center chain deflection is about 0.5 in.
5. Re-tighten the compression chain sprocket bolts.
6. Manually move the compression device fully down
then fully up to ensure smooth chain travel.
7. Using motorized compression move the
compression device fully down then fully up to
ensure smooth chain travel.
8. Replace the cover.

i hope for help you,
Best Regards,
mathygreen

PD: Please tell me if a lorad elite, this procedure calibration is the same for lorad M-IV...ok?