-------------------------------------------------------------------------------REFERENCE DESIGNATION
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33-42-11-000-001 Removal of the Landing Light 7LB (8LB)
SRM 51-73-00 (for corrective action)
28-21-51-991-001 Fig. 401
28-21-51-991-004 Fig. 402
3. Job Set-up
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Subtask 28-21-51-941-059
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)
Put the safety barriers in position.
(3)
Make sure that the access platform is below the applicable zone 540(640).
Subtask 28-21-51-865-102
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 21QA, 25QA
121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 122VU LIGHTING/LANDING LT/L/CTL 3LB T05 122VU LIGHTING/LANDING LT/L/SPLY 1LB T04 123VU L WING TK/PUMP 1/STBY SPLY 11QA AD12
FOR 22QA, 26QA 121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23 122VU LIGHTING/LANDING LT/R/CTL 4LB T07 122VU LIGHTING/LANDING LT/R/SPLY 2LB T06 123VU R WING TK/PUMP 1/STBY SPLY 12QA AE12
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4. Procedure
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(Ref. Fig. 401/TASK 28-21-51-991-001, 402/TASK 28-21-51-991-004)
Subtask 28-21-51-420-053
A. Preparation for Installation
(1)
Clean the component interfaces and the adjacent areas with a clean MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).
(2)
Make sure that the parts retained from the removed component are 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 new O-ring (1)
-if necessary, the new O-ring (9)
-
the new O-ring (10)
-
the new O-ring (11).
(5)
Install the new O-rings (10), (11) and (1) on the fuel pump (2).
(6)
If you install the fuel pump (2) that you removed:
(a)
Install the new O-ring (9) on the drain bolt (8).
(b)
Install the drain bolt (8).
(c)
Safety the drain bolt (8) with MISCELLANEOUS (Material No. 19-010).
(7)
Lubricate the fuel pump (2), the slide valve and the pump canister with FUELS (Material No. 01-001).
Subtask 28-21-51-420-054 R B. Installation of the Fuel Pumps 21QA(26QA) and 25QA(22QA)
(1) Make sure that the baulk-arm (13) (on the retaining pin and spring assembly) is in the unlocked (open) position. This gives clearance for the fuel pump (2) to be installed into the slide valve.
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(2) Make sure that the electrical receptacle (14) is in the same position that you wrote down.
R R (3) Install the EXTRACTOR TOOL (558-1-05903-002) or the EXTRACTOR - FUEL PUMP (558-1-05903) on the applicable fuel pump (2) as follows:
(a) Install the threaded rods (22) through the tooling holes (12) (in the pump flange) and fully into the threaded holes in the slide valve.
(4) Align and install the fuel pump (2) into the slide valve.
(5) Use the EXTRACTOR TOOL to turn the fuel pump (2) and the slide valve clockwise. Align the stop pin in the slide valve flange with the stop pin locating hole in the canister.
(6) Make sure that the slot in the flange of the fuel pump (2) engages with the retaining pin and spring assembly.
R (7) Turn the baulk-arm (13) on the retaining pin and spring assembly to the locked (closed) position.
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