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containers without air bubbles is achieved.
Note: Make connections quickly to minimize introducing air into the system lines.
(m) Remove short lengths of tubing from 3/16-inch supply lines.
(n) Connect panel lines to 3/16-inch supply lines. Torque nuts to 28 in-lb (3.1 Nm) and apply
torque seal.
(o) Remove 3/16-inch to 5/16-inch reducer from each of the TKS cart lines.
(p) Install cable tie securing coupler assemblies to fuselage wall.
(6) Purge vertical stabilizer porous panel.
(a) Remove cable tie securing the single 5/16-inch coupler assembly to the fuselage wall
(downstream of aft proportioning unit).
(b) Disconnect 5/16-inch supply line feeding the coupler so that coupler remains connected to
line leading to porous panel.
(c) Connect one of the TKS cart lines to the vertical panel line with the coupler.
(d) Connect short length of tubing to the 5/16-inch supply line and position other end of tubing
into collection container.
(e) Perform Procedure - Purge Air. (Refer to Section G.)
(f) Perform Procedure - Panel Performance Inspection. (Refer to Section H.)
(g) Close shut-off valve at the in-line pressure gauge.
(h) Disconnect in-line pressure gauge from coupler assembly.
(i) Set ICE PROTECT mode switch to HIGH position.
(j) Bleed air by energizing system on aircraft and run in "high" mode until full flow into collection
containers without air bubbles is achieved.
Note: Make connection quickly to minimize introducing air into the system line.
(k) Remove short length of tubing from 5/16-inch supply line.
(l) Connect coupler assembly to 5/16-inch supply line. Torque nuts to 48 in-lb (5.4 Nm) and
apply torque seal.
(m) Install cable tie securing coupler assembly to fuselage wall.
(7) Close air regulator by turning knob counter-clockwise, pull up on pressure vessel safety valve to
relieve pressure, and de-couple compressed air supply.
(8) Set ICE PROTECT mode switch to HIGH position.
(9) Set ICE PROTECT power switch to ON position.
(10) Set PUMP BKUP switch to ON position.
(11) Leak check all fittings that were opened during the purge process.
(12) Set PUMP BKUP switch to OFF position.
(13) Set ICE PROTECT power switch to OFF position.
CAUTION: Discard any fluid that has been, or is suspected of being a mixture of test fluid and
anti-ice fluid. Typically a combination of the fluids will show signs of "streaks"
when one has been introduced into the other.
To reuse pure anti-ice fluid (or test fluid) collected in containers, the fluid must first
be passed through fine (0.5 micron) filtration.
(14) If reusing fluid, replenish pressure vessel on TKS cart with fluid collected in the clean containers.
Use fresh fluid if there is evidence of contamination.
C I R R U S S E R V I C E B U L L E T I N MOD E L S R 2 2
SB 2X-30-03 R1
Cirrus Design SR22 Serials 3003, 3310, 3326, 3403 Page 11
thru 3424, 3463, and 3499 w/ FIKI ice protection system.
EFFECTIVITY:
November 23, 2009
G. Procedure - Purge Air.
CAUTION: Ensure pressure does not exceed 150 psi.
Do not allow pressure vessel to run dry. If vessel runs dry, isolate and purge panel individually
up to 70 psi for at least 10 minutes.
To avoid clogging, all fluid must be filtered through fine (0.5 micron) filtration before purging.
If porous panel membranes are clogged, panel replacement is required.
(1) Open shut-off valves at in-line pressure gauges corresponding to panels to be purged.
(2) On TKS cart, increase air pressure by 5 psi every 5 seconds to 60 psi by turning the air regulator
knob clockwise.
Note: If unable to reach the minimum required pressure on both panels, isolate one
panel at a time by closing shut-off valve to one of the panels.
(3) Monitor in-line pressure gauges to panels being purged, and continue to adjust air pressure on
TKS cart until each in-line pressure gauge reads at least 60 ±5 psi.
(4) Start stopwatch.
(5) Wipe leading edge with a high density sponge as flow becomes evident.
(6) Allow panel to flow for at least 3 minutes or until air is no longer emerging from the panel (which
ever occurs last) and it is generally wet out across the entire active area.
(7) When air is no longer seen emerging from panels, "shock" panel by closing one of the TKS cart
valves, waiting approximately 5 seconds and as quickly as possible opening it again. Perform
"shock” to the other line using the other valve.
(8) Repeat "shocking” the panels at least a second time or until all evidence of air passing though
the panels are gone and even distribution is observed along the entire length of each panel.
(9) At porous panel surface, verify all fluid dispensing holes are wetting out.
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30-00 ICE AND RAIN PROTECTION - Alteration of TKS Anti-Ice S(6)
