D. Attach thrust reverser to tailpipe extension with 42 bolts. Bolt head direction is forward. Tighten 130 to 200 pound-inches.
E. Remove caps from stow and deploy hydraulic lines and connect lines to fittings on shroud bulkhead. Torque the 3/8-inch line fittings to 250 - 300 pound-inches.
F. Remove cap from proximity sensor electrical line and connect line to electrical connector on shroud bulkhead. Install clamps securing line to shroud bulkhead.
G. Connect push-pull cable to shroud bulkhead and lockwire (Fig. 401, Detail B).
H. Attach push-pull cable to brackets on tailpipe extension with clamps.
NOTE: When handling tailpipe extension, clean white cotton gloves should be worn to protect Skydrol resistant coating.
I. Connect feedback control cable to lower end of thrust reverser feedback control lever and check the rigging per 78-34-32.
J. Reactivate thrust reverser hydraulic system by removing ground locks from both thrust reverser isolation valves, and check operation of thrust reverser per 78-32-01.
WARNING: PERSONNEL MUST STAY CLEAR OF THRUST REVERSER WHEN IT IS ACTUATED TO PREVENT BEING CAUGHT BY ROTATING DEFLECTOR DOORS.
K. Actuate deflector doors through five cycles to remove entrapped air from thrust reverser lines and actuators. Check for leaks.
L. 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 AFTER INSTALLING GROUND LOCKS. REVERSERS SHOULD NOT DEPLOY.
M. If new reverser was installed, install deflector door fairing on deflector door per 78-32-162.
6. Restore Airplane to Normal
A. Attach feedback control access panel to left side of thrust reverser shroud assembly.
B. Install tailpipe fairings per 78-32-162.
C. Reactivate thrust reverser hydraulic system by removing ground locks from both thrust reverser isolation valves.
518
May 01/98 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 78-32-101 Page 405
THRUST REVERSER ASSEMBLY - INSPECTION/CHECK
1. General
A. This section covers only the inspection and check of the thrust reverser exhaust nozzle.
2. Thrust Reverser Exhaust Nozzle Inspection
A. Equipment and Materials
(1) Thrust Reverser Isolation Valve Ground Lock Cap and Pin Assembly - F80109-3 or F80109-9.
B. Examine Thrust Reverser Exhaust Nozzle
(1)
Place deflector doors in the reverse thrust position (Ref 78-32-01).
WARNING: PERSONNEL MUST STAY CLEAR OF THE THRUST REVERSER WHEN IT IS ACTUATED, TO PREVENT BEING CAUGHT BY ROTATING DEFLECTOR DOORS.
(2)
Deactivate the 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 RETURN THRUST REVERSERS TO FORWARD THRUST AFTER INSTALLING GROUND LOCKS. REVERSERS MUST NOT MOVE HYDRAULICALLY.
(3)
Examine thrust reverser exhaust nozzle for cracks.
(4)
If cracks are found in the thrust reverser nozzle, it may continue in service until the next overhaul providing:
(a)
No single crack exceeds 10 inches in length.
(b)
Any combination of cracks does not exceed 15 inches total length.
NOTE: If two adjacent cracks are within 1 inch of each other, they should be regarded as a single crack and their combined length should not exceed 10 inches.
(c)
All cracks are stop drilled 1/8 inch diameter immediately after being discovered.
(d)
Reversers known to have cracks are inspected at intervals of approximately 100 hours but not exceeding 150 hours until a permanent repair has been accomplished per standard overhaul procedures (OHM 78-30-12).
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