TASK 72-35-00-808-060-G00
14. Loosen the Shingled HPC Stage 1 Blades
A. General
(1) This procedure gives the steps to loosen (unshingle) the HPC stage 1 blades.
B. References
Reference Title
71-00-02 P/B 401 POWER PLANT - REMOVAL/INSTALLATION
72-00-00 P/B 201 ENGINE - MAINTENANCE PRACTICES
75-31-03 P/B 501 VARIABLE STATOR VANE (VSV) FEEDBACK CABLE -
ADJUSTMENT/TEST
C. Tools/Equipment
Reference Description
STD-6378
Protective Mat - Rubber, Manufacturers Association, Grade SC43,
neoprene sponge, 1 inch thick, approximately 3 x 4 feet with warning
streamer attached
D. Consumable Materials
Reference Description Specification
B50046 Solvent - Methyl Ethyl Ketone, Technical
Grade
ASTM D740
(Supersedes TT-M-261)
D00031 [P06-038] Compound - Antigallant (P06-038 Preferred,
P06-036 Optional) - Esnalube 382
E. Location Zones
Zone Area
410 Left Powerplant
420 Right Powerplant
F. Procedure
SUBTASK 72-35-00-848-061-G00
(1) Make sure the task "Preparation for VSV Repairs" has been done.
(a) Put protective mats, STD-6378 if needed.
SUBTASK 72-35-00-948-062-G00
(2) Install the N2 rotor manual or pneumatic cranking system (PAGEBLOCK 72-00-00/201).
SUBTASK 72-35-00-018-063-G00
(3) Remove the number one acoustic liner that is immediately above the 3 o'clock position (aft to
forward) (Figure 804) as follows:
(a) Use a razor blade (or a sharp knife) to cut the adhesive that is around the acoustical liner
section.
(b) Loosen the retainer screws that hold the liner section to the fan case.
(c) Disengage the liner section from the fan case rails.
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-35-00
NoC
Page 856
D633T1B7 Aug 22/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101,
109, 114, 115, 314-999
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