C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
2 sealing ring 28-21-52 01 -030
2 sealing ring 28-21-52 01A-030
3 sealing rings 28-21-52 01 -020
3 sealing rings 28-21-52 01A-020
D. Referenced Information
------------------REFERENCE -------------------------------DESIGNATION ------------------------------
-------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 28-00-00-910-001 Fuel Safety Procedures 28-21-51-000-002 Removal of the Fuel Pumps 37QA(38QA) 28-21-51-400-002 Installation of the Fuel Pumps 37QA(38QA) 28-25-00-650-001 Pressure Defuel 28-25-00-869-001 Fuel Transfer 28-21-52-991-006 Fig. 405
3. Job Set-up
__________ Subtask 28-21-52-941-069
A. Safety Precautions WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-00-00-910-001) when you do work on the fuel system.
(2)
Make sure that the safety barriers are in position.
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B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 37QA
121VU FUEL/CTR TK/PUMP1 SPLY 29QA P23 FOR 38QA
121VU FUEL/CTR TK/PUMP2 SPLY 30QA P26
Subtask 28-21-52-860-055
C. Aircraft Maintenance Configuration
(1)
Make sure that the applicable fuel tank is defuelled (Ref. TASK 28-25-00-650-001).
(2)
Make sure that the access platform is below the applicable fuel pump canister.
(3)
Make sure that the applicable fuel pump is removed (Ref. TASK 28-21-51-000-002).
4. Procedure
_________
(Ref. Fig. 405/TASK 28-21-52-991-006) Subtask 28-21-52-420-063
A. Preparation for Installation
(1)
Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).
(2)
Make sure that the slide valve is clean and in the correct condition.
(3)
Do an inspection of the component interface and/or the adjacent area.
(4)
Lubricate the new parts that follow with FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012):
-
the sealing ring (2)
-
the sealing rings (3).
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B. Installation of the Slide Valve
(1)
Install the sealing ring (2) in its groove in the canister (1).
(2)
Install the sealing rings (3) in their grooves in the slide valve (4).
(3)
Carefully push the slide valve (4) into the canister (1). Make sure that the sealing rings do not move from their installed positions.
(4)
Engage the retaining pin of the baulk arm assembly (5) with the slot in the flange of the slide valve (4).
(5)
Push the baulk arm assembly (5) into its opening in the canister (1).
(6)
Install the screws (6).
(7)
TORQUE the screws (6) to 0.226 m.daN (19.99 lbf.in).
5. Close-up
________ Subtask 28-21-52-410-056
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the applicable fuel pump 37QA (38QA) (Ref. TASK 28-21-51-400-002).
Subtask 28-21-52-865-066
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-
FOR 37QA
29QA
-
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