Subtask 28-43-24-860-051
B. Aircraft Maintenance Configuration
(1) Make sure that the access panel 192MB is open.
4. Procedure
_________
Subtask 28-43-24-420-051
A. Preparation for Installation
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
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(1)
Clean the component interfaces and the adjacent areas with 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. Subtask 28-43-24-420-050
B. Installation of the Attitude Monitor
(Ref. Fig. 401/TASK 28-43-24-991-001)
NOTE : Make sure that the washers (3) are installed in the position that
____
they were removed from.
(1)
Position the three screws (1) and the washers (3) in the attitude monitor (2) and install it on the mounting plate assembly.
(2)
Apply the red color STRUCTURE PAINTS (Material No. 16-047) across the heads of the three screws (1) and the adjacent surface of the attitude monitor (2).
(3)
If the attitude monitor mounting datum or the installation of the washers (3) have not changed, no adjustment is necessary.
(4)
If the attitude monitor mounting datum or the installation of the washers (3) have changed, do the adjustment in paragraph 4.C.
Subtask 28-43-24-820-050
C. Adjustment of the Attitude Monitor
(Ref. Fig. 402/TASK 28-43-24-991-002)
NOTE : There are two methods to adjust the attitude monitor.
____
(1) Precise leveling with the aircraft on jacks:
(a)
Do the aircraft precise leveling (Ref. TASK 08-22-00-200-001) to put the aircraft in position to have a 0 degree pitch, 0 degree roll. Use the standard reference marks of the aircraft (tolerance +/- 5 minutes).
(b)
If the attitude monitor shows the D4 position, the attitude monitor is correct and no adjustment is necessary.
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Adjustment of the Fuel Qauntity Attitude-Monitor
Figure 402/TASK 28-43-24-991-002
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(c) If the attitude monitor does not show the D4 position, do the adjustment procedure that follows:
1 Remove the screw (13) and the three screws (14).
_
2 Remove the cover plate (15).
_ 3 Tighten the spring loaded screws (12) until the springs are
_ fully compressed, and then loosen them one full turn.
4 Turn the spring loaded screws (12) to adjust the attitude
_ monitor until the bubble is at the D4 position.
5 Put the cover plate (15) in the position for installation.
_ 6 Apply BONDING AND ADHESIVE COMPOUNDS (Material No. 08-007A) on
_
the threads of the screws (13) and (14).
7 Install the screw (13) and the three screws (14).
_
8 Lower the aircraft on its wheels (Ref. TASK 07-11-00-586-002).
_
(2) Quick leveling with the ADIRU and with aircraft on ground:
(a)
Use the ADIRU (Ref. TASK 12-11-28-860-001) to get the aircraft attitude pitch and roll data.
(b)
Refer to table 1 to identify the reference square on the attitude monitor (Example: F4).
(c)
If the ADIRU figures for pitch and roll are out of the table range, do the quick leveling procedure with the ADIRU (Ref. TASK 08-21-00-200-001) to get the pitch and roll figures in the table range.
(d)
Look at the attitude monitor: 1 If the attitude monitor shows the identified reference square
_
(Example: F4), no adjustment is necessary.
2 If the attitude monitor does not show the identified reference
_ square, do the adjustment procedure that follows:
a Remove the screw (13) and the three screws (14).
_
b Remove the cover plate (15).
_
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