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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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WARNING:_______ DO NOT MOVE BETWEEN THE ENGINE AND THE OPEN THRUST REVERSER
WHEN YOU CLOSE THE THRUST REVERSER. THE THRUST REVERSER IS
HEAVY AND CAN FALL CLOSED QUICKLY IF THE HOIST OR THE SLING
EQUIPMENT HAS A FAILURE. THIS CAN CAUSE INJURIES TO PERSONS
AND DAMAGE TO EQUIPMENT.
WARNING:_______ DO NOT PUT YOUR WEIGHT ON A THRUST REVERSER THAT IS KEPT OPEN
WITH A HOLD-OPEN ROD ONLY. YOUR WEIGHT CAN CAUSE THE FAILURE
OF THE HOLD-OPEN ROD. THE THRUST REVERSER IS HEAVY AND CAN
FALL CLOSED QUICKLY, WHICH CAN CAUSE INJURIES TO PERSONS AND
DAMAGE TO EQUIPMENT.
WARNING:_______ YOU MUST OPERATE THE HOIST TO LIFT THE THRUST REVERSER TO THE
FULLY OPEN POSITION BEFORE YOU REMOVE THE HOLD-OPEN ROD. IF
YOU REMOVE THE HOLD-OPEN ROD BEFORE YOU DO THIS, THE THRUST
REVERSER CAN FALL QUICKLY. THIS CAN CAUSE INJURIES TO PERSONS
AND DAMAGE TO EQUIPMENT.
(1) Do these steps to remove the hold-open rod which holds the applicable thrust reverser half in the open position:
NOTE: For safety, you must close each thrust reverser half
____ independently. Remove only one hold-open rod, and close only one thrust reverser half at a time.
(a) Operate the hoist to lift the applicable thrust reverser half to the fully open position.
NOTE: This usually will remove the load from the hold-open rod
____ until you can release it from its bracket. But, if it is installed in the bracket at the 45-degree position, a load will remain on the hold-open rod. For this condition, carefully push up on the thrust reverser while you release the end of the hold-open rod from the bracket.
(b)
Disengage the end of the hold-open rod from the bracket on the fan case.
(c)
Do the steps that follow to retract the hold-open rod:
1) HOLD-OPEN RODS WITH THE LATCH; Push on the latch release handle and retract the hold-open rod.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú N01 Page 223 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
2) HOLD-OPEN RODS WITH THE LOCK SLEEVE AND BALL LOCKPIN; Do these steps: a) Remove the ball lockpin and put it in the stowage
bracket.
b) Move the lock sleeve until you can see the red band (with the word UNLOCKED on it), then retract the hold-open rod.
3) HOLD-OPEN RODS WITH THE LOCK SLEEVE AND SECONDARY LOCK; Do these steps: a) Push on the secondary lock to release the lock. b) Move the lock sleeve until you can see the red band
(with the word UNLOCKED on it), then retract the
hold-open rod.
(d) Put the hold-open rod in the stowage bracket on the thrust reverser.
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CAUTION: MAKE SURE THE V-FLANGE OF THE THRUST REVERSER GOES INTO THE
_______ V-GROOVE ON THE ENGINE WHEN YOU CLOSE THE THRUST REVERSER. IF THE V-FLANGE DOES NOT ALIGN CORRECTLY WITH THE V-GROOVE, DAMAGE TO THE ENGINE OR THE THRUST REVERSER CAN OCCUR.
(2) Operate the hoist to lower the applicable thrust reverser half to the fully closed position.
NOTE:____Each thrust reverser half must be closed independently. If the opposite thrust reverser half is open, continue to hold it in the open position (with its hold-open rod) while you close the first thrust reverser half.
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(3) Operate the hoist to lower the applicable thrust reverser half to the fully closed position.
NOTE:____Each thrust reverser half must be closed independently. If the opposite thrust reverser half is open, continue to hold it in the open position (with its hold-open rod) while you close the first thrust reverser half.
The power unit has a hydraulic bypass configuration to permit each thrust reverser to close without power unit operation.
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