B.  Consumable Materials
 (1)  Abrasive paper or cloth, 180-grit
 (a)  
B00137 Abrasive Paper - Federal
 Spec P-P-121

 (b)  
B00138 Abrasive Cloth
 Federal Spec P-C-451

 C.  Procedure
 S 127-014
 CAUTION: DO NOT LET PARTICLES FROM THE ABRASIVE CAUSE CONTAMINATION OF
_______ OF THE MECHANISMS OR ELECTRICAL EQUIPMENT. DAMAGE CAN OCCUR.
 (1)  Use a circular or elliptical movement of the abrasive to get an equally smooth surface.
 TASK 20-11-14-147-010
 3.  Clean Metal Surface with a Rotary Bonding Brush
_______________________________________________
 A.  General
 (1)  Use this procedure to remove paint from metal or to remove Alodine, Iridite, or light anodize from aluminum. Do not use a bonding brush on plated surfaces or on metals that are not painted, for example, CRES, titanium, or alclad aluminum. Clean these surfaces with solvent.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 20-11-14
 ALL  ú ú 01 Page 701 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. Equipment
 (1)  
Drill motor or other applicable drive

 (2)  
Bonding brush, stainless steel, of correct size
 (Fig. 701).

 C.
Procedure

 NOTE: Identify the bonding brush housings with color as shown in the
____ task, Remove Paint from Metal Surfaces with Lacquer Thinner or Methyl Ethyl Ketone. The colors show which bonding brush housings you will use on which metal.
 S 147-015
 CAUTION:_______DO NOT USE CARBON STEEL BONDING BRUSHES. STEEL PARTICLES IN METAL SURFACES COULD CAUSE DANGEROUS CORROSION.
 DO NOT USE ROTARY WIRE BRUSHES OR ABRASIVE DISKS ON TITANIUM. DAMAGE CAN OCCUR. HAND CLEAN TITANIUM WITH ABRASIVES OR CLEAN WITH A SOLVENT.
 (1)  Use a drill motor or other applicable drive to apply a stainless steel bonding brush of the correct size to clean the necessary diameter (Fig. 701).
BONDING BRUSHES
DISK
BRUSH
MANDRELS
OR PILOT SHANK
WIRE SIZE
DISK DIA
DIA
MANUFACTURERS
BOEING
(IN.)
DIA.
(IN.)
(IN.)
OSBORN NO.
MORRIS NO.
BOEING
BRUSH CO
ST NO.
(IN.)
ST NO.
MAX
MIN

11/32 1/4 1/4
0.005
0.004
ST913K-34-24
ST913M-34-24
1/2 3/32 1/4
0.005
0.004
94-SV-37
P-31-SS
220-NN
ST913K-50-09
ST913M-50-09
1/2 1/8 1/4
0.005
0.004
94-SV-47
P-32-SS
221-NN
ST913K-50-12
ST913M-50-12
1/2 5/32 1/4
0.005
0.004
94-SV-48
P-33-SS
222-NN
ST913M-50-16
ST913M-50-16
1/2 3/16 1/4
0.005
0.004
94-SV-36
P-34-SS
223-NN
ST913M-50-19
ST913M-50-19
3/4 3/16 1/4
0.006
0.005
P-31-516-SS
224-NN
ST913K-75-19
ST913M-75-19
3/4 1/4 1/4
0.006
0.005
P-31-517-SS
225-NN
ST913K-75-25
ST913M-75-25
3/4 5/16 1/4
0.006
0.005
P-31-53-SS
226-NN
ST913K-75-31
ST913M-75-31
1.0
3/16 1/4
0.008
0.006
P-36-SS
227-NN
ST913K-100-19
ST913M-100-19
1.0
1/4 1/4
0.008
0.006
P-36-S1-SS
228-NN
ST913K-100-25
ST913M-100-25
1.0
5/16 1/4
0.008
0.006
P-36-S5-SS
229-NN
ST913K-100-31
ST913M-100-31

Rotary Bonding Brushes and Abrasive Disk Mandrels
Figure 701

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 20-11-14
 ALL  ú ú 01 Page 702 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (a)  
Apply brush intermittently and keep the cutting face parallel with the surface.

 (b)  
　
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