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FRONT FAN CASE SEE
O.D.
A-A
L-B3203 (00000
Fan Exit Case and Vane Repair (Patch Repair of the Airfoil with a Partial or
Full Span Replacement of the WireMesh Leading Edge)
Figure 808
G27576
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FEGV AIRFOIL
(EXAMPLE)
VANE CAVITY FULL
LENGTH OF CHANNEL
FILL WITH PWA404
SILICONE RUBBER
0.863
1.175
0.763
1.075
STAINLESS STEEL CHANNEL 10 AMP POWERSTAT1.5 X 1.75 WALL 0.062
240 VAC COMPATABLE
0.425
0.375 (2 LOCATIONS)
NOTE: DIMENSIONS ARE GIVEN IN INCHES ONLY
1 CHROMALOX INDUSTRIAL HEATING PRODUCTS 641 ALPHA DRIVE PITTSBURGH, PA. 15238 CATALOG NO. C0225
2
PAYNE ENGINEERINGPOWER CONTROL PLANT
900 RAMBLEBROOK STREET
PALM BAY, FL. 32905
MOD18TB
L-B3202 (0000)
FEGV Leading Edge Repair Tool
Figure 809
G27575
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SEE B
SEE A
VANE CONCAVE
A
SIDE
WIRE
MESH
LEAD CONVEX
EDGE SURFACE
A A 1
CONCAVE
2
SURFACE
A-A
B
L-B4683(0197)
Surface Preparation and Bond Areas for Leading Edge Shield Repair
Figure 810 (Sheet 1)
H82206
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
(WITH METAL LEAD EDGE SHIELD)
L-B4684(0197)
Surface Preparation and Bond Areas for Leading Edge Shield Repair Figure 810 (Sheet 2)
H82369
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FAN EXIT VANE (EXAMPLE)
SEE B
SEE A
(BOTH SIDES) PREPARATION FOR SURFACE MASKED OFF AREA 1 INCH (25.400 mm) A
WIRE MESH DAMAGED VANE VANE
EDGE LEADING MESH OVER WIRE NEW TAPE
FWD FWD
L-B8674 (0901) PW V
FAN EXIT VANE FAN EXIT VANE (EXAMPLE) (EXAMPLE)
B B
Repair the Fan Exit Vane Leading Edge with Tape Figure 811
M46853
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(f)
Apply the locally fabricated leading edge tool over the leading edge of the vane until it is firmly installed. 1) You can use a rubber hammer to tap with to help install the
tool. 2) Hold the tool in position on the vane with tape, cord, or some other acceptable method. 3) Wipe any excess adhesive from around the tool.
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