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Troubleshooting
Cot does not lock into the trolley and LEDs flash amber (Continued)
4. Remove the trolley covers. Check the connection of the trolley latch switch cables (6390-001-318 and 6390-001-
319).
5. Check the connection of the trolley main cable (6390-001-391) to the control board assembly (6390-101-014). If
necessary, replace the trolley main cable (6390-001-391) and the control board assembly (6390-101-014).
6. Remove and inspect the actuator assembly (6390-001-028) from the trolley.
7. Check the return springs connecting the release cams (6390-001-329) to the trolley bottom pans.
8. Examine the trolley latches (6390-001-318 and 6390-001-319). Make sure that the electronic switch is being
compressed when the latch is locked. Make sure that there are not cables obstructing the pin on the top of the latch
and that there is not a broken spring internal to the latch.
9. Replace each latch, if necessary.
Cot locks into the trolley at the loading position but LEDs are not on
1. Confirm that the trolley is on and the battery is charged.
2. Make sure that the magnet activator (6390-001-106) is present and that it is properly fastened at the foot end of the
anchor.
3. With the lifting arms down, push on the trolley. Make sure that the system does not roll away from the loading
position.
4. Remove the transfer. Make sure that the magnet mover trigger (6390-001-205) is not damaged.
5. Remove the magnet mover trigger (6390-001-205).
6. Remove the foot end latch assembly from the transfer.
7. Pull out the link in the channel on the patient right side.
8. Make sure that the magnet nested into that link is present and intact.
9. Make sure that the return spring on the link is in good condition.
10. Remove the trolley covers.
11. Check the connection of the trolley position sensor (TPS) cable (6390-001-361). If necessary, replace the trolley
position sensor (TPS) (6390-001-361).
12. Check the connection of the trolley main cable to the control board assembly (6390-101-014). If necessary, replace
the trolley main cable (6390-001-391) and the control board assembly (6390-101-014).
13. Check the connection of the trolley LED cables (6390-001-396). If necessary, replace one of the trolley LEDs
(6390-001-396).
Cot will not jog up when released from the transport position
Check the trolley control panel LEDs. They should be solid green without any solid amber error indication.
If there are no trolley control panel LEDs illuminated
1. Press the main power button to turn the product on. You may need to turn the product on and then off to make sure
that Power-LOAD is not in sleep mode.
If the trolley control panel LEDs are illuminated
1. Flashing amber means that the battery is low. Return the trolley to the transport position.
2. Make sure that the product begins to charge as indicated by a flashing green battery LED.
Note: The low battery indication (flashing amber) may continue as the battery recharges.
3. Solid green battery LED and solid amber LED means that there is a system error. Call Stryker Service for advanced
troubleshooting. The following may be attempted:
Note: If you hear the motor run as you pull the product from the transport toward the loading position, the problem
is most likely with the hydraulic unit.
a. Replace the hydraulics assembly (6390-00-039).
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