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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
WARNING: DO NOT LET THE RETURN VALVE ON THE HAND PUMP STAY IN THE
_______ OPEN POSITION EXCEPT WHEN YOU LOWER THE COWL. IF YOU LEAVE THE VALVE IN THE OPEN POSITION, THE ACTUATOR FLUID CAN CONTINUE TO DRAIN OUT OF THE ACTUATOR INTO THE PUMP. THIS CAN REDUCE THE SNUBBING ACTION OF THE ACTUATOR WHEN YOU CLOSE THE COWL. REDUCED SNUBBING ACTION CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
WARNING: DO NOT BE BETWEEN THE REVERSER HALVES OR BETWEEN A
_______ REVERSER HALF AND THE ENGINE DURING THE OPERATION OF THE REVERSER OPENING ACTUATOR. INJURY TO PERSONS CAN OCCUR IF THE REVERSER HALF SUDDENLY CLOSES.
CAUTION: MAKE SURE THERE ARE NO TOOLS AND EQUIPMENT NEAR THE THRUST
_______ REVERSER WHEN YOU CLOSE IT. TOOLS AND EQUIPMENT THAT ARE NEAR THE THRUST REVERSER CAN CAUSE DAMAGE WHEN YOU CLOSE THE THRUST REVERSER.
(a)
Close the valve on the hand pump.
(b)
Remove the dust caps from the inlet fitting on the reverser opening actuator and from the hand pump hose (Fig. 202).
(c)
Connect the hand pump hose to the inlet fitting on the reverser opening actuator (Fig. 202).
(d)
Operate the hand pump until the weight of the reverser half is off the reverser opening actuator.
(e)
Remove the actuator lock from the extended piston rod (Fig. 202).
(f)
Push the lock collar up to disengage it.
(g)
Slowly open the valve on the hand pump and let the reverser half come down.
(h)
When the reverser half is down, immediately close the return valve on the hand pump.
(i)
Disconnect the hand pump hose from the reverser opening actuator (Fig. 202).
(j)
Install dust caps on the inlet fitting on the reverser opening actuator, and on the hand pump hose (Fig. 202).
CAUTION: MAKE SURE THE V-BLADE FULLY ENGAGES THE V-GROOVE WHEN YOU
_______ CLOSE THE THRUST REVERSER. IF THE V-BLADE AND THE V-GROOVE ARE NOT ALIGNED, DAMAGE TO THE THRUST REVERSER CAN OCCUR.
(k) Push the reverser halves together, if it is necessary, so the latch hooks can be engaged.
NOTE: You can use the latching tool to help pull the reverser
____
halves together (Fig. 203).
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
Cowl/Reverser Latching Tool
Figure 203
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A REVERSER WIRE BUNDLE
FEEDBACK CABLE
WIRE BUNDLE REVERSER HYDRAULIC FLEXIBLE LINES CONNECTOR MANUAL DRIVE SYNC LOCK
FEEDBACK CABLE (LOCKING) UPPER ACTUATOR
LINES FLEXIBLE HYDRAULIC ACTUATOR UPPER (LOCKING) DRIVE MANUAL A 2 ROTATING FLEX SHAFT
MANUAL
UNLOCK
HANDLE ROTATING
FLEX SHAFT
A 1
1 AIRPLANES WITHOUT
THRUST REVERSER SYNC LOCKS.
2 AIRPLANES WITH THRUST
REVERSER SYNC LOCKS.
Thrust Reverser Manual Unlock Handle and Manual Drive
Figure 204
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