-
the joint face on the front spar.

 (3)
 Do an inspection of the component interface and/or the adjacent area.

 (4)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 Subtask 28-25-41-420-056
 B. Installation of the Refuel/Defuel Coupling/Cap
 (1)
 Apply FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012) to the new O-ring (9) and the new O rings (2).

 (2)
 Install the O-ring (9) into the groove of the coupling connector.

 (3)
 Install one O-ring (2) on each bolt (1).

 (4)
 Remove the blanking plug from the coupling connector.

 (5)
 Carefully install the coupling (7) onto the coupling connector and the bolts (1) and (10).

 NOTE : Sealing of the bolts will be retained if you can prevent
____
 movement of the bolts.

 (6) Make sure the unthreaded part of the bolts (1) and (10) does not show through the hole(s). If the unthreaded part of the bolts (1) or (10) shows, install the washer(s) retained on removal.
 1EFF : ALL 1 28-25-41Page 413 1 1 May 01/05 1 1 1CES 1

R  Dimensions and Positions, Left Wing 
R  Figure 403/TASK 28-25-41-991-004 
R 1EFF :  051-051,  1  28-25-41 Page 414 
1  1  May 01/05
 1  1
 1CES  1

 (7)
 Install the nuts (3) and (8) on the bolts (1) and (10) and tighten by hand.

 (8)
 Engage a hexagon key in the end of each bolt (1) and (10) to prevent movement of the bolt. TORQUE the nuts (3) and (8) in an opposite sequence to between 60 and 70 lbf.in (0.67 and 0.79 m.daN).

 (9)
 Make sure that you can see a minimum of 1.5 threads from each nut (3) and (8).

 (10)
 Make sure that the sealing around the heads of the bolts (1) and (10) is not broken. If necessary repair the sealing (Ref. ASRM 517612).

 (11)
 Do a bonding check between the coupling (7) and the front spar (Ref. TASK 20-28-00-912-004).

 (12)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (13)
 Install the chain (5) onto the chain attachment lug (4). NOTE : The chain (5) is spring loaded into a protection sleeve on the

____
 cap (6).

 (14)
 Make sure that the handle of the refuel coupling-cap (6) is in the correct position.

R **ON A/C 001-049, 052-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 28-25-41-410-058
 C. Close Access
 (1) Install the applicable access panels:
 -FOR 40QM, 41QM
 Install 622FB, 622HB, 622JB.

 1EFF : ALL 1 28-25-41Page 415 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 051-051,

 Subtask 28-25-41-410-058-A
 C. Close Access
 (1) Install the applicable access panels:
 -
FOR 40QM, 41QM
 Install 622FB, 622HB, 622JB

 -
FOR 100QM, 101QM
 Install 522FB, 522HB, 522JB.

 **ON A/C ALL
 Subtask 28-25-41-820-053 R D. Adjustment of the Coupling
 (1)
 Make sure that these dimensions are correct:
 (Ref. Fig. 402/TASK 28-25-41-991-003)

 -dimension 'a' must be equal at all positions around the cap, +/-
0.5 mm (0.020 in.)
 -
dimension 'x' must not be more than 1 mm (0.04 in.)

 -
dimension 'y' must not be more than 1 mm (0.04 in.)

 -
dimension 'z' must not be more than 0.13 mm (0.005 in.).

 (2)
 If dimension(s) 'a', 'x', 'y' and/or dimension 'z' is/are incorrect:

 (a) Temporarily remove the applicable access panel:
 -
FOR 40QM, 41QM
 remove 622HB

 -
FOR 100QM, 101QM
 remove 522HB.

R **ON A/C 001-049, 052-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 401/TASK 28-25-41-991-002)
 1EFF : ALL 1 28-25-41Page 416 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 051-051,

 (Ref. Fig. 401A/TASK 28-25-41-991-002-A)
 **ON A/C ALL

 (b) Remove the refuel coupling-cap (6) from the coupling (7). (Ref. Fig. 404/TASK 28-25-41-991-006)
 (3) If dimension 'a' is incorrect:
 (a)
 Loosen the bolts (22).

 (b)
 Adjust the position of the shroud-ring (20) and the element assembly (19) until dimension 'a' is correct.
　
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