SERVICE KIT
SK 208-179B
(d) With U470642 Sealant , fay seal the 2601552-1 T K S Tank Vent Weldment to the inside
of t he airplane and fay seal t he 0823337-2 Grommet t o the outside of the 2601552-10
Filler Port Doubler.
(e) With four MS20470A D3-4A Rivets, install the 2601552-1 TKS Tank Vent Weldmen t to
the inside of the airplane and the 0823337-2 Grom met to the out s ide of the 2601552-10
Filler Port Doubler.
(3) Install the mounts f or the filler tube installation and for the vent tube installation as f oll ows :
(a) (Refer to Figure 20, View D-D, View G-G, and View H-H.) Mak e four Number 30
(0.128-inch diameter) holes i n the s t r uc ture for the rivets t hat atta ch the mounts for the
filler tube.
(b) (Refer to F igure 20, View B-B, View C-C, View D-D, and View E-E.) Make eight Number
40 (0.098-inch diameter holes in the structure for the rivets that attach the nutp lates for
the filler tube.
(c) (Refer t o Figure 19, View A-A, View B-B, View C-C, View D-D, View E - E , View F- F, View
G-G, View H-H, and View J-J.) Ma ke nine Number 30 (0.128-inch diamet er) holes in the
structure f or the rivets t hat att ac h the m ounts for the vent tube.
(d) Apply Alodine to bare metal.
(e) (Refer t o Fi gure 20, View D-D, View G-G, and View H-H.) With four MS20470A4-6N
Rivets, install f our S2034-1 Mounts on the structure for supports for the routing of the
filler tube.
(f) (Refer to Figure 19, View A-A, View B-B, View C-C, View D-D, View E - E , View F- F, View
G-G, View H-H, and View J-J.) With nine MS20470A 4-6N Rivets, install nine S2034-1
Mounts on t he structure for supports for the routing of the vent tube.
(g) (Refer to F igure 2 0, View B-B, View C-C, View D-D, and V iew E-E .) With eight
CM3827AD3-3A Rivets, attach f our NAS1033A3 Nut plat es to th e structure f or supports
for the routing of the filler tube.
(h) With four MS27039-1-08 Screws, attach the filler tube to the struct ure with the three
MS21919WDG22 Clamps and one MS21919WDG26 Clamp.
(4) Install the filler port as follows :
(a) (Refer to Fig ure 20, View F-F.) Mat c h drill eight 0.307-inch diame ter holes in the 2611000
Skin to match the 2601552-10 Filler Port Doubler.
(b) Apply Alodine to bare metal.
(c) P ut the two 13122-08 8-Bolt Gasket Fillers, one 13122-09 Filler C ap Flange, 13122-10
Filler Cap, and 2601552-7 Filler Port Weldment in position and instal l them with the eight
MS24694-C53 Screws, NAS1149C0363R Washers, and MS21083C3 Nu ts.
I. (Refer to Fig ure 1 6.) Install the nutplates t hat will at ta ch the TKS f airing to th e struc ture as follows:
(1) Attach t he 2680003-3 and the 2680003-4 TKS Fairing M TG Templates to the o utsid e of t he
airplane on the belly.
(2) From out side the airplane, drill 57 Number 40 (0.098-inch diam et er) hol es i n the airplane belly.
(3) Remov e and discard the 2680003-3 and the 2680003-4 TKS Fairing MTG Templates.
(4) From out side the airplane open the holes to 0.219-inch diameter in the belly and in t he fairing.
(5) From the i ns ide of the airplane, drill 114 Number 40 (0.098-i nc h diameter) holes in the airplane
belly.
(6) Apply Alodine to bare me tal.
(7) Attach 57 MS21059L3 Nutplates t o the ai rplane belly with 114 M S20 470A D3-3A Rivets .
SK208-179B
Page 20 February 7, 2013
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