T54829 T54845
Thrust Reverser Control System Schematic  540 
78-34-01  Figure 5 (Sheet 1)  Feb 15/80 
Page 12 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

554  Thrust Reverser Control System Schematic 
Feb 15/80  Figure 5 (Sheet 2)  78-34-01 
Page 13 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

EFFECTIVITY
AIRPLANES WITH NOSE GEAR
AIR-GROUND SWITCH

Thrust Reverser Control System Schematic  508 
78-34-01  Figure 5 (Sheet 3)  Feb 20/90 
Page 14 

BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

THRUST REVERSER RESTRICTOR VALVES REMOVAL/INSTALLATION
1.  General
A.  This procedure contains the tasks to remove and install the thrust reverser one-way restrictor valve and the restrictor/relief valve.
2.  Equipment
A. Thrust Reverser Isolation Valve Ground Lock Cap and Pin Assembly F80109-3 or F80109-9
3.  References
A.  AMM 78-32-01/501, Thrust Reverser Deployment and Lock-out
B.  AMM 29-09-30/201, Hydraulic Reservoir Pressurization System
4.  Prepare to Remove the Restrictor Valves
A.  Extend the thrust reverser (AMM 78-32-01/501).
WARNING:  MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE THRUST REVERSER. INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU EXTEND THE THRUST REVERSER.
B. Install the thrust reverser isolation valve ground lock cap and pin assembly (F80109-3) or (F80109-9) to deactivate the thrust reverser hydraulic system (AMM 78-32-01/501).
WARNING:  DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
C.  Depressurize hydraulic system A and the Standby system (AMM 29-09-30/201).
D.  Remove the lower access panel (Fig. 401).
5.  Remove the Restrictor Valves (Fig. 401)
A.  Remove the nut, washers and screw that hold the clamp to the hydraulic tube (Fig. 401, detail B).
B.  Disconnect the hydraulic tube from the restrictor valve.
C.  Disconnect the restrictor valve from the tee.
500 
May 01/03  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  78-34-07 Page 401 

F59634 F59648
Thrust Reverser Restrictor Valve Installation  500 
78-34-07 Page 402  Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Apr 01/97 

500  Thrust Reverser Restrictor Valve Installation 
Apr 01/97  Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  78-34-07 Page 403 

D.  Remove the restrictor valve.
E.  Install the caps on all the hydraulic tubes and tube connections.
6.  Install the Restrictor Valve (Fig. 401)
A.  Remove the caps on all the hydraulic tubes and tube connections.
B.  Install the restrictor valve to the tee (Fig. 401, View C).
C.  Install the hydraulic tube end to the restrictor valve.
D.  Install the nut, washers and screw that hold the clamp to the hydraulic tube.
7.  Put the Airplane Back to its Usual Condition
A.  Install lower access panel (Fig. 401).
B.  Remove the thrust reverser isolation valve ground lock cap and pin assembly (F80109-3) or (F80109-9) to activate the thrust reverser hydraulic system (AMM 78-32-01/501).
C.  Pressurize hydraulic system A and the Standby system (AMM 29-09-30/201).
D.  Put the thrust reverser in the forward thrust position (AMM 78-32-01/501).
WARNING:  MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE THRUST REVERSER. INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU EXTEND THE THRUST REVERSER.
500 
78-34-07 Page 404  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  May 01/03 

STANDBY SYSTEM THRUST REVERSER HYDRAULIC FUSES REMOVAL/INSTALLATION
1.  General
A.  This procedure contains the tasks to remove and install the thrust reverser hydraulic fuses in the standby hydraulic system. The hydraulic fuses are located near the forward bulkhead in the left wheel well on top of the seal ring support beam. 
2.  Equipment
A.  Container - for hydraulic fluid, 1 U. S. gallon (4 liter) capacity
　
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