737-300 400 500 AMM 飞机维护手册 EXHAUST(102)

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 3)  UPPER ACTUATORS WITH A HYDRAULIC FLOW RESTRICTOR; Remove the restrictor check valve from the upper EXT (extend) port for use on the replacement actuator.
 4)  Remove the bellcrank support from the actuator.
 NOTE: The assembly of the feedback rod, the
____ bellcrank and the support fitting will be used on the replacement actuator. If it is necessary, use the Actuator Buildup procedure.
 S 024-046-C00
 (4)  Do the steps that follow to remove the center and bottom actuators (View A and B, Fig. 401).
 (a)  
Loosen the bolts on the tubing clamps for the tubes that are connected to the actuator because it is necessary to move the tubing to be able to remove the actuator.

 (b)  
Disconnect the hydraulic line from the upper RET (retract) port on the actuator.

 (c)  
Disconnect the flex shaft(s) from the actuator as follows
 (View B, Fig. 401):

 

 NOTE: If you remove the center actuator, do steps (1)
____ through (3) again. The center actuator has flex shafts installed on the upper and lower side of the actuator.
 1)  Loosen the tube coupling nut at the end of the flex shaft
 tube. 2) Disconnect the nut from the actuator. 3) Move the nut and the tube adapter along the tube to expose
 the flex shaft.
 4) Remove the shaft from the actuator.
 5) Keep the shaft in the tube.

 (d)  
Remove the applicable access panel from the sleeve.

 (e)  
Remove the bolt, the nut, the washer, and the bushing from the rod end of the actuator (View C, Fig. 401). 1) Disconnect the actuator rod end from the sleeve.

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 78-31-03
 ALL  ú ú C01 Page 408 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(f)  
Remove the bolts that attach the retainers to the gimbal ring (View E, Fig. 401). 1) Remove the retainers.

 (g)  
Remove the actuator and the shims (if present) from the reverser.

 NOTE: When you remove a lower actuator, it may be
____ necessary to first open the thrust reverser cowl a few inches. This will give you sufficient clearance to remove the lower # actuator.
 (h)  After the center actuator is removed, do the steps that follow on a suitable work surface (View D, Fig. 401). 1) Remove the cap from the lower RET (retract) port.
 NOTE: Do not remove the unions from the ports.
____
 2) Remove the orifice from the upper RET (retract) port.
 (i)  After the bottom actuator is removed, do the steps that follow on a suitable work surface (View D, Fig. 401). 1) If it is necessary, remove the caps from the lower RET
 (retract) port and the lower EXT (extend) port.
 TASK 78-31-03-404-018-C00
 3. Hydraulic Actuator Installation
_______________________________
 A. General
 (1)  
This procedure includes:

 (a)  
Instructions to build-up a basic locking actuator into a left half (LH) or right half (RH) locking actuator.

 (b)  
Instructions to change a LH locking actuator into a RH locking actuator, or a RH locking actuator into a LH locking actuator.

 (c)  
Instructions to install the hydraulic actuator.

 

 (2)  
The basic actuator assembly is identified by the following part numbers:

 (a)  315A1801-13, -17, -21, and -25.

 B.
Equipment

 (1)  
Rig Pin - .0312 inch diameter, 1.5 inches long

 C.
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 29-15-00/201, Hydraulic Systems A, B, and Standby

 (3)  
AMM 71-11-02/201, Fan Cowl Panels

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 (5)  
AMM 78-31-00/501, Thrust Reverser System

 (6)  
AMM 78-31-03/501, Hydraulic Actuators

 (7)  
AMM 78-34-03/401, Proximity Sensors

 (8)  
AMM 78-34-03/501, Proximity Sensors

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