SERVICE KIT
SK 208-179B
(60) Stop the fl uid supp ly.
(61) Wait until t he fl uid pressure is released .
(62) Slowly di sconnect t he test cart fluid supply tube from the inboard pan el.
(63) Install new s ealing r ings (two S28 00-942 Sealing Ri ngs ) an d con nec t the two right in board
wing p anel supply lines t o ports 1 and 5 on the wing proportioning u nit.
(64) Disconnect the center TK S panel supply l ine from port 2 on the wing proportion ing unit.
(65) Connect the purge tank l ine to the c enter TKS panel as near to the panel as you can.
(66) Apply pres s ure of 10 psi, do a check for leaks in the line, and repa ir all leaks.
(67) Apply press ure of 20 ps i t o slow ly start the fl uid flow through the panel.
(68) Wa it until the fluid s tarts to come o ut all the holes at the same rate along the f ull length of the
panel and increase the pressure to 60 psi.
(69) (Refer to Figure 13.) Continue the fl uid purge unt il the panel is correc t ly p urged in accordance
with Figure 13 and Table 4.
NOTE: To get an even flow over the panel it may be necessary to lightly run a dry cloth or
paper towel over the leading edge a nd/or the dry spots of the panel during purging.
(70) Stop the fl uid supp ly.
(71) Wait until t he fl uid pressure is released .
(72) Slowly di sconnect t he test cart fluid supply tube from the inboard pan el.
(73) Install a ne w S2800-942 Sealing Rin g and connect the c enter TKS i nboard wing panel supply
line t o port 2 on the wing proport ioning unit.
(74) Disconnect the right outboard wi ng TKS pa nel supply line s from ports 3 and 4 on the wing
proportioning unit.
(75) Connect the purge t ank line to t he outboard TKS pane l as near to the panel as y ou can.
(76) Apply pres s ure of 10 psi, do a check for leaks in the line, and repa ir all leaks.
(77) Apply press ure of 20 ps i t o slow ly start the fl uid flow through the panel.
(78) Wa it until the fluid s tarts to come o ut all the holes at the same rate along the f ull length of the
panel and increase the pressure to 65 psi.
(79) (Refer to Figure 13.) Continue the fl uid purge unt il the panel is correc t ly p urged in accordance
with Figure 13 and Table 4.
NOTE: To get an even flow over the panel it may be necessary to lightly run a dry cloth or
paper towel over the leading edge a nd/or the dry spots of the panel during purging.
(80) Stop the fl uid supp ly.
(81) Wait until t he fl uid pressure is released .
(82) Slowly disconnect the test cart fluid s upply tube fro m the left outboard wing TKS panel.
(83) Disconnect the tw o w ing strut TKS panel supply lines from ports 6 a nd 7 on the wing
proportioning unit.
(84) Connect the purge tank line to the sec ti on of the wing strut T KS panel that supplies fluid by
the line tha t was attached to port 6.
NOTE: The strut pane l has two mem branes (upper and lower). Each membrane has a fl uid
supply tube. You can install a tee fit ting and connect the test cart supply tube to
each membrane .
(85) Apply pres s ure of 10 psi, do a check for leaks in the line, and repa ir all leaks.
SK208-179B
February 7, 2013 Page 43
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