51-31-00
ALL ú ú B02 Page 207 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
GUN NOZZLE
INJECTION SEAL INJECTION SEAL
NOTE: "A" = 0.25 INCH MINIMUM, BUT NOT LESS THAN "W".
HOLE FILLING HOLE FILLING
THE INJECTION SEAL IS COMPLETE WHEN THE SEALANT GOES THROUGH TO THE OTHER END USE YOUR FINGER OR A SPATULA TO STOP THE FLOW OF THE SEALANT AT THE OTHER END THE SEALANT MUST COMPLETELY FILL THE SLOT
Injection Seal Figure 202
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
51-31-00
ALL ú ú B02 Page 208 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 392-026-B00
(4) When you apply the sealant at the bottom of the slot, make sure you fill the slot.
NOTE: Make sure you get a continuous seal with the bottom and sides
____
of the slot.
TASK 51-31-00-392-027-B00
6. Hole and Slot Seal Application
______________________________
A. Equipment
(1)
Spatula made of wood or plastic
(2)
Sealing gun and nozzles
B. Consumable Materials
(1) G00138 Masking Tape - Permacel No. 70 or 85,
American Tuck No. 210
C. Procedure
S 302-028-B00
(1)
Do the Prepare for Sealing task.
S 392-076-B00
(2)
Apply the sealant on all the tool and coordination holes that are not riveted (Fig. 202).
(3)
Apply the sealant on the rivets in fully sealed areas.
(4)
Apply a hole filling compound to the pressure side of the hole.
(5)
Apply the masking tape on the large slots and holes.
(6)
Remove the masking tape after the sealant is mixed.
S 392-029-B00
S 392-030-B00
S 952-031-B00
S 952-032-B00
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51-31-00
ALL ú ú B02 Page 209 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 392-033-B00
(7)
Apply the compound to the pressure side of the hole with a spatula or applicable tool.
S 392-034-B00
(8)
Apply the compound tightly into the hole or slot.
S 392-035-B00
(9)
Make the compound smooth with the adjacent surfaces.
TASK 51-31-00-392-036-B00
7. Fillet Seal Application_______________________
A. Equipment
(1)
Fillet Fairing Tools
(2)
Sealing gun and nozzles
B. Procedure
(1) S 302-037-B00Do the Prepare for Sealing task.
(2) S 392-077-B00Apply the sealant with a flow gun.
(3) S 392-038-B00Put the nozzle end into the seam.
(4) S 212-039-B00Make sure the sealant is applied in a straight line (Fig. 203).
(5) S 392-040-B00Push the bead of the sealant forward of the nozzle head.
(6) S 212-041-B00Push the sealant tightly into its position with the fairing tool. Make sure you get a smooth fillet.
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