Caravan
SERVICE BULLETIN
CAB-30-02
(l)
Put the tubing into the coupling body and move the sealing ring into the recess at the
end of the coupling body.
(m)
Push the tubing toward the coupling body to make the olive hold the sealing ring in
position.
(n)
Engage and finger tighten the nut.
(o)
Tighten the nut until the torque starts to increase quickly (to approximately 180° from
finger tight).
(p)
Use safety wire to safety nuts only where it is specified in the instructions. If not specified
in the instructions, safety wire is not necessary on the TKS fittings.
(9)
(Refer to Figure 2.) When tubing repair or replacement is necessary, the olive must always
be clenched (swaged) to the tubing as a separate operation. Use approved clenching tools
before you assemble the coupling.
(10) (Refer to Figure 2.) Assemble the nylon tubing and the couplings in accordance with approved
maintenance practices.
2.
(Refer to Figure 1, View A-A.) Remove the old B3N21050S Propeller and install the new B3N21100S
Propeller. (Refer to the 208 Maintenance Manual, Chapter 30, TKS Propeller - Maintenance Practices
and Chapter 61, Propeller.)
3.
Do the forward-of-firewall TKS line installation:
A.
Remove the lower left cowling panel, right upper engine cowling, and right nose cap. (Refer to the
208 Maintenance Manual, Chapter 71, Engine Cowling and Nose Cap - Maintenance Practices.)
B.
(Refer to Figure 1, View D-D.) Put the 624023-4-0454 Hose Assembly in position on the airplane.
C.
At the 2652035-10 Upper Center Cowl, connect the 624023-4-0454 Hose Assembly to the
windshield spray bar assembly.
D.
With the two MS21919WCJ12 Clamps, one MS9024-09 Clamp, one AN3-3A Bolt, and one
MS21042-3 Nut, attach the 624023-4-0454 Hose Assembly as shown.
E.
Remove the AN929-L4J Cap on the ZN6261 Fitting in the firewall at WL 80.77 and RBL 16.16.
F.
Attach the end of the 624023-4-0454 Hose Assembly (that is not connected to the windshield
spray bar assembly) to the 2601538 Cargo Pod Tube Fuselage Routing in the firewall at WL 80.77
and RBL 16.16.
G.
(Refer to Figure 1, Detail A.) Attach the ZN6261 Fitting to the 13125-02 Propeller Nozzle Bracket
with the ZN6079 Nut and the NAS1149F0763P Washer.
H.
Attach the 13125-04 Propeller Nozzle to the ZN6261 Fitting with the ZN4856 Nut.
I.
(Refer to Figure 1, Detail A, Detail B, and View C-C.) Adjust the angle of the 13125-04 Propeller
Nozzle as necessary to the tolerance shown and then tighten and safety wire the nut.
J.
Attach the 624023-4-0792 Hose Assembly to the 13125-04 Prop Nozzle.
K.
(Refer to Figure 1, View A-A.) With the three MS21919WCJ12 Clamps, two MS21919WCJ18
Clamps, one MS21919WCJ20 Clamp, three AN3-3A Bolts, and three MS21042-3 Nuts, attach the
624023-4-0792 Hose Assembly to the engine truss at the positions shown.
L.
With the MS21919WCJ12 Clamp, attach the 624023-4-0792 Hose Assembly at the igniter lead
routing.
M.
(Refer to Figure 1, View A-A and View B-B.) With two MS21919WCJ12 Clamps, attach the
624023-4-0792 Hose Assembly at the oil cooler installation.
N.
(Refer to Figure 1, View A-A and View D-D.) Remove the AN929-L4J Cap on the ZN6829 Fitting
on the firewall at WL 80.77 adjacent to the fitting where you attached the 624023-4-0454 Hose
Assembly.
CAB-30-02
May 17, 2013
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