NNoottee -- If you hear the motor run as you pull the product from the transport toward the loading position, the hydraulic unit
may be the problem.
a. Replace the hydraulics assembly (6390-001-039).
b. Replace the motor cable (6390-001-431).
c. Replace the angle position sensor (APS) (6390-001-397).
d. Replace the trolley position sensor (TPS) (6390-001-361).
e. Replace the control board assembly (6390-101-014).
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1. Check the angle position sensor (APS) (6390-001-397) calibration set point. Contact Stryker Technical Support.
2. Remove the patient right side cover and make sure that the hydraulic cylinder is not “over-stroking.”
NNoottee -- A ~1/8" back settle in the rod of the hydraulic cylinder at full extension is a sign of the over-stroke condition
3. Check for damage of components in the chain of load bearing parts from the lifting arms to the patient right side plate
(6390-001-344).
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1. Check that the battery voltage is 12.2 VDC.
2. Check the battery cable connections for damage.
3. Check the cable connections to the control board.
4. Replace the hydraulics assembly (6390-001-039).
5. Replace the control board assembly (6390-101-014).
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1. Make sure that the trolley is powered on.
2. Make sure that the head end LED indicators are green to confirm that PPoowweerr--LLOOAADD recognizes the loading position.
If the head end LED indicators are not on:
1. Check the trolley control panel LEDs to make sure that the product is on.
NNoottee -- The LEDs should appear as a solid green battery symbol with no illumination of error indication.
2. If the trolley control panel LED illuminates solid green only, then the trolley may not see what position it is in.
a. Make sure that the magnet activator (6390-001-106) is present.
b. Make sure that the magnet activator (6390-001-106) is fastened and secure at the foot end of the anchor.
If the head end LED indicators are on:
Make sure that the trolley motor is running when you press the cot switch.
1. If the trolley motor is audible, then the problem is with the low pressure relief valve in the trolley hydraulics assembly.
a. Extend the cot legs.
b. Use the trolley manual release to drop the lifting arms until they no longer support the cot.
c. Press the down button on the trolley side panel to finish lowering the arms.
d. If the arm moves, replace the hydraulics assembly (6390-001-039).
EN 20 6390-309-002 Rev AB.0
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