B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 01-001 USA ASTM-D-1655-93 (JET A-1) FUEL, TURBO (Ref. 20-31-00) Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00) Material No. 09-007 USA MIL-S-4383 BRUSHABLE FUEL RESISTANT COATING (Ref. 20-31-00) Material No. 11-026 GB DEF-STAN 68-148/1 SOLVENT GENERAL PURPOSE (Ref. 20-31-00) Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
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 C. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
 -------------------------------------------------------------------------------
3 O-ring 28-11-05 24 -050 5 O-ring 28-11-05 24 -040
 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 20-28-00-912-002 Electrical Bonding of Components With Conductive
 Bolts and Screws in the Tanks 28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas 28-11-41-991-001 Water Drain Valve - Vent Surge Tank 28-12-47-000-001 Removal of the NACA Vent Intake 28-12-47-400-001 Installation of the NACA Vent Intake 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
 Center Tank
 28-25-00-869-001 Fuel Transfer

R **ON A/C 001-001, 051-052,
 28-11-41-991-001 Fig. 401
 **ON A/C ALL
R Post SB 28-1077 For A/C 001-001,051-052,
 28-11-41-991-001-A Fig. 401A
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 3. Job Set-up
__________
 Subtask 28-11-41-941-072

 A. Safety Precautions WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
 (1) You must obey the safety precautions (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
 (2) Make sure that the safety barriers are in position.
 Subtask 28-11-41-860-057

 B. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is below the applicable access panel 550AB, 650AB.

 (2)
 Make sure that the fuel has been drained from the vent surge tank through the water drain valve (Ref. TASK 28-25-00-650-003).

 (3)
 Make sure that the applicable NACA vent intake is removed (Ref. TASK 28-10-00-910-002) (Ref. TASK 28-12-47-000-001).

 4. Procedure
_________ R **ON A/C 001-001, 051-052,
 (Ref. Fig. 401/TASK 28-11-41-991-001) **ON A/C ALL R Post SB 28-1077 For A/C 001-001,051-052, (Ref. Fig. 401A/TASK 28-11-41-991-001-A)
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 Subtask 28-11-41-420-059
 A. Preparation for Installation
 (1)
 Clean the component interfaces and/or the adjacent area with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (4)
 Apply FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012) to the new O-ring (5) and O-ring (3).

R **ON A/C 001-001, 051-052,
 Subtask 28-11-41-420-051
 B. Installation of the Water Drain Valve
 (1)
 Put the bolts (4) in position then install one O-ring (5) on each bolt (4).

 (2)
 Install the O-ring (3) on the water drain valve (2).

 (3)
 Install the water drain valve (2) then install and tighten the nuts (1).

 (4)
 Apply SEALANTS (Material No. 09-007) to the nuts (1) and the ends of the bolts (4).

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 **ON A/C ALL R Post SB 28-1077 For A/C 001-001,051-052, Subtask 28-11-41-420-051-A
 B. Installation of the Water Drain Valve NOTE : You must bond one of the bolts (4) (Ref. TASK 28-11-41-991-001)
____
　
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