NNoottee -- The transfer lock release ramp is located about 24 in. from the foot end of the anchor.
c. Examine the trolley to transfer lock pawl assembly (6390-001-144). Make sure that the pawl rotates freely and, when
pressed, rotates fully below the surface of the transfer.
d. Examine the V-guide rollers and the flat rollers on the trolley and anchor. Replace any rollers that do not roll
smoothly or are excessively worn.
TTrroolllleeyy iiss iinn tthhee ttrraannssppoorrtt ppoossiittiioonn wwiitthh aa ccoott aanndd tthhee ttrroolllleeyy LLEEDDss aarree nnoott
iilllluummiinnaatteedd ggrreeeenn
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 of debris that may prevent 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 of
debris or foreign objects that could limit the range of motion.
TTrroolllleeyy iiss iinn tthhee ttrraannssppoorrtt ppoossiittiioonn aanndd tthhee ccoott iiss nnoott lloocckkeedd iinn aatt tthhee ffoooott eenndd
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 PPoowweerr--LLOOAADD 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
(page 24).
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 confirm 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 prevent the cot from locking.
TTrraannssffeerr ddooeess nnoott lloocckk iinnttoo tthhee aanncchhoorr
Push the transfer in by hand to make sure that the transfer is against the bumper stops.
1. If yes, then the transfer lock bearing in the anchor may be the problem.
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.
a. Remove the transfer from the anchor.
b. Clear any debris from the top of the anchor and the channels in the transfer.
EN 26 6390-309-002 Rev AB.0
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