www.stryker.com 6390-009-002 REV D 35
Troubleshooting
Trolley makes noises while rolling
1. Check for and remove any debris or foreign objects found inside transfer channels.
2. Check the transfer for wear around the channels. Replace if needed.
3. Remove the trolley from the transfer and make sure that the trolley rollers are free of debris.
4. Replace the V-guide rollers on the trolley (6390-001-025).
Trolley is in the transport position with a cot and the trolley LEDs are not
illuminated green
1. Pull the trolley out of transport position.
2. Inspect the trolley head end pawl. It should return firmly when pressed down. If it does not, check the following:
a. Make sure that the pawl is free of debris or foreign objects that may stop it from returning.
b. Make sure that the head end anchor release button is free from debris inhibiting motion.
c. Check the return springs on the pawl (0038-885-000).
3. Check the trolley stop ramp (6390-001-325) on the underside of the trolley middle mechanism.
4. Remove the transfer from the anchor. Make sure that the channels where the trolley and anchor rollers travel are
free from debris or foreign objects that could limit the range of motion.
Trolley is in the transport position and the cot is not locked in at the foot end
Make sure that the cot foot end casters are on the vehicle floor.
1. If yes, pull the cot manual release and push down on the foot end of the cot.
a. If the cot still does not drop into the lock, pull the cot all the way out and push the cot retract (-) button to full
retract the cot base.
b. Load the cot again without using the manual release lever.
c. If the cot is still held up by the foot end casters, then the problem is in the cot hydraulic system.
2. If no, did Power-LOAD run the motor to jog the cot down when the cot reached the transport position at the head
end?
a. If no, see Cot does not jog down once in the transport position on page 33.
b. If yes, make sure that the cot foot end guide (6500-002-111) is aligned with the transfer foot end guide (6390-
001-220).
c. To ensure alignment, firmly move the cot foot end back and forth and the cot should drop in place.
d. Remove the cot and look for debris in the transfer guide that may be preventing the cot from locking.
Transfer does not lock into the anchor
Push the transfer in by hand to make sure that the transfer goes all the way in against the bumper stops.
1. If yes, then the problem is likely the transfer lock bearing in the anchor.
a. Clean the transfer lock pin
b. Replace the bearing
c. Apply molybdenum disulfide lubricant (6390-001-263) to the inside of the new bearing.
d. Inspect the transfer lock override slides (6390-001-261) for excessive wear.
2. If no, remove the transfer head end dead stops.
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