Installation of the Rain-Repellent Check Valve

TASK 30-45-46-400-001-A
Installation of the Rain-Repellent Check Valve

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

WARNING: MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.

CAUTION: MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.

NOTE: If there is leakage of FORALKYL 2211, you can smell a pine odor.

ZONE: 120
FIN: 3DM
FIN: 4DM

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
120	AVIONICS COMPARTMENT

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	O-RING	AIPC 30-45-01-02-130
1	CHECK VALVE	AIPC 30-45-01-02-150
5	O-RING	AIPC 30-45-01-02-155
4	O-RING	AIPC 30-45-81-02-040
1	CHECK VALVE	AIPC 30-45-81-02-150
5	O-RING	AIPC 30-45-81-02-160

D. Referenced Information

REFERENCE	DESIGNATION
TASK 30-45-00-600-001-A	Servicing of the Rain Repellent Fluid Can
TASK 30-45-00-720-002-A	Functional Test of the Rain Repellent System (with the Air Compressor)
TASK 30-45-00-720-002-B	Functional Test of the Rain Repellent System (with the Air Conditioning System)
Rain-Repellent Check Valve

3. Job Set-up
Subtask 30-45-46-100-051-A

A. Cleaning Instructions
(1) Make sure that the fluid does not stay on the aircraft furnishings.
If the fluid gets on the aircraft furnishings, clean with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) .

Subtask 30-45-46-865-054-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C NOT FOR ALL
FOR FIN: 3DM (CHECK VALVERAIN RPLNT)
49VU	ANTI ICE/RAIN/RPLNT/CAPT	1DB1	D01
FOR FIN: 4DM (CHECK VALVERAIN RPLNT)
122VU	ANTI ICE/RAIN/RPLNT/F/O	1DB2	W11

Subtask 30-45-46-860-050-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the rain-repellent fluid can is removed (Ref. AMM TASK 30-45-00-600-001).
(2) Make sure that the four quarter-turn fasteners are loosened and that the panel 211LW is removed.

Subtask 30-45-46-860-050-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the four quarter-turn fasteners are loosened and that the panel 211LW is removed.

4. Procedure
Subtask 30-45-46-420-051-A

A. Installation of the Check Valve
(1) Examine the condition of the check valve (1):
(a) If the check valve (1) is not in a good condition, replace it with a new AIPC 30-45-01-02-150 CHECK VALVE (1) or AIPC 30-45-81-02-150 CHECK VALVE (1).
(2) Install a new AIPC 30-45-01-02-130 O-RING (4) or AIPC 30-45-81-02-040 O-RING (4) on the union (2).
(3) Install the union (2) on the check valve (1).
(4) Install a new AIPC 30-45-01-02-155 O-RING (5) or AIPC 30-45-81-02-160 O-RING (5) on the mounting base (6) of the spray nozzle.
(5) Install the check valve (1) on the mounting base (6) of the spray nozzle.
(6) Hold the mounting base (6) of the spray nozzle and tighten the check valve (1).
(7) Connect the line (3) to the union (2).
(8) Tighten the union (2).

Subtask 30-45-46-420-052-A ** ON A/C NOT FOR ALL

B. Installation of the rain-repellent fluid can (Ref. AMM TASK 30-45-00-600-001).

Subtask 30-45-46-869-054-A ** ON A/C NOT FOR ALL

C. Pressurization of the System
(1) Push the purge pushbutton of the fluid gage to pressurize the system until the fluid is in its maximum level.
(2) Make sure that the needle of the pressure gage is in the green area.

Subtask 30-45-46-942-053-A ** ON A/C NOT FOR ALL

D. Close-up operation
(1) Disconnect the hose from the drain valve.
(2) Install the protective cap on the drain valve.

Subtask 30-45-46-720-050-A ** ON A/C NOT FOR ALL

E. Do a functional test of the rain-repellent system (Ref. AMM TASK 30-45-00-720-002).

5. Close-up
Subtask 30-45-46-210-051-A

A. Make sure that all the couplings are correctly tightened and that there are no leaks.

Subtask 30-45-46-410-051-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the panel 211LW.
(3) Tighten the four quarter-turn fasteners.

Subtask 30-45-46-865-052-A

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C NOT FOR ALL
FOR FIN: 3DM (CHECK VALVERAIN RPLNT)
49VU	ANTI ICE/RAIN/RPLNT/CAPT	1DB1	D01
FOR FIN: 4DM (CHECK VALVERAIN RPLNT)
122VU	ANTI ICE/RAIN/RPLNT/F/O	1DB2	W11

[Rev.10 from 2021] 2026.04.01 08:21:47 UTC