500
Apr 01/97 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 78-34-08 Page 401
G34074
Thrust Reverser Hydraulic Fuse Installation 500
78-34-08 Figure 401 Apr 01/97
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
THRUST REVERSER CONTROL VALVE -REMOVAL/INSTALLATION
1. Equipment and Materials
A. Thrust Reverser Isolation Valve Ground Lock Cap and Pin Assembly - F80109-3 or F80109-9
2. Remove Thrust Reverser Control Valve
A. Deactivate thrust reverser hydraulic system by installing ground locks on both thrust reverser isolation valves.
WARNING: SERIOUS INJURY CAN RESULT TO PERSONNEL IF GROUND LOCKS ARE NOT PROPERLY INSTALLED. ATTEMPT TO DEPLOY THRUST REVERSERS.
B. Remove wing access panel 6301 on left wing or 6401 on right wing to gain access to thrust reverser control valve (Ref Chapter 12, Access Doors and Panels).
C. Disconnect control valve link at lever arm (Fig. 401).
D. Disconnect hydraulic lines (four places) from valve fittings and cap al1 lines. Cap or plug control valve ports.
NOTE 1: To facilitate valve removal, it may be necessary to remove the valve port fittings.
NOTE 2: To facilitate removal of No. 2 engine control valve, place No. 2 thrust lever in full forward position.
E. Remove control valve mounting bolts and spacers (and washers and nuts, if applicable). Remove valve.
3. Install Thrust Reverser Control Valve
A. Position control valve at engine controls mounting bracket on wing front spar and attach to bracket with bolts and spacers (and washers and nuts, if applicable) (Fig. 401).
NOTE: To facilitate installation of No. 2 engine control valve, place No. 2 thrust lever in full forward position.
B. Remove caps or plugs from control valve and hydraulic lines and connect hydraulic lines to fittings on valve.
NOTE: If installed, restrictor (section AA) must have shoulder against boss as shown.
C. Connect valve link to lever arm with screw, washer, and nut. Torque nut 40 to 50 pound-inches.
D. Replace access panel 6301 on left wing or 6401 on right wing.
E. Reactivate thrust reverser hydraulic system by removing ground locks from both thrust reverser isolation valves.
501
May 01/03 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 78-34-12 Page 401
H27617
Thrust Reverser Control Valve Installation 500
78-34-12 Page 402 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 20/82
THRUST REVERSER SHUTTLE VALVE - REMOVAL/INSTALLATION
Prepare for Removal
A. Remove hydraulic pressure from the thrust reverser system:
(1)
Move the landing gear selector lever to the OFF position and install a DO-NOT-OPERATE tag.
NOTE: This will remove the pressure from the main landing gear down line.
(2)
Depressurize the standby hydraulic system (Ref 29-12-0/201) to remove the alternate hydraulic pressure.
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