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发表于 2010-7-4 19:44:37
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来自： 中国广东深圳
什么机型的呢
1.733：
TASK 53-52-00-004-001
2. Nose Radome Removal (Figure 401)
A. References
Reference
Title
34-41-11 P/B 401
WEATHER RADAR ANTENNA - REMOVAL/INSTALLATION
B. Procedure
SUBTASK 53-52-00-864-002
(1) Open all WEATHER RADAR circuit breakers on the P6 or the P18 circuit breaker panel.
NOTE: See the Weather Radar System coverage for the airplane (PAGEBLOCK 34-41-11/401).
SUBTASK 53-52-00-034-003
(2) Remove the screws that attach the aft edge of the radome to the clips on the fuselage bulkhead.
SUBTASK 53-52-00-014-045
WARNING: DO NOT OPEN THE NOSE RADOME IF THE WIND IS MORE THAN 15 KNOTS. IF YOU OPEN THE NOSE RADOME IN A WIND, THE RADOME CAN MOVE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3) Open the radome and install the support rods in the hold open brackets on each side.
SUBTASK 53-52-00-034-005
(4) Disconnect one of the two ends of the bonding jumper at the radome hinge.
SUBTASK 53-52-00-024-006
(5) Remove the bolts that attach the hinge arms to the hinge fittings on the radome and remove the radome from the fuselage.
NOTE: When you remove the bolts, prepare to catch the shims that are installed between the hinge arms and the hinge fittings. Look at the installed positions of the shims to help the installation of the same radome.
| | NOTE: When more than one tool part number is listed under the same "Reference" number, the tools shown are alternates to each other within the same airplane series. Tool part numbers that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
| |
| | Reference
| Description
| | COM-614
| Meter - Bonding (Non-Explosion Hazard & Fuel Vapor Areas)
(Part #: 247000, Supplier: 07239, A/P Effectivity: 737-ALL)
(Part #: 247001, Supplier: 07239, A/P Effectivity: 737-ALL)
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| |
| | Reference
| Description
| Specification
| | A00281
| Adhesive - Dow Corning 3145 RTV
| MIL-A-46146 (BAC5010, Type 79)
| | B00148
| Solvent - Methyl Ethyl Ketone (MEK)
| ASTM D740
| | D50004
| Compound - Antiseize
| BMS3-28
| |
| |
| | Zone
| Area
| | 101
| Control Cabin - Left
| |
| |
| | E. Prepare the radome for the installation. | |
| | (1) Make sure the erosion protection is in good condition.
| |
| | (2) Install the hinge brackets, the serrated plates, and the fillers on the radome with attachment screws, and install the brackets.
| |
| | NOTE: These brackets can push against the flange of the reinforcement angle.
| |
| | (4) Make sure that you open all WEATHER RADAR circuit beakers on the P6 or the P18 circuit beaker panel.
| |
| | (5) Hold the radome adjacent to the fuselage bulkhead until the hinge brackets can be engaged with the hinge arms on the bulkhead.
| |
| | (6) Install the shims, where it is necessary, between the hinge brackets and the hinge arms, and install the hinge attachment bolts.
| |
| | CAUTION: YOU MUST BE CAREFUL WHEN YOU LOWER THE RADOME TO THE CLOSED POSITION AFTER THE INSTALLATION OF THE HINGE. IF YOU ARE NOT CAREFUL WHEN YOU LOWER THE RADOME, THE TOP AFT EDGE OF THE RADOME CAN HIT THE FUSELAGE SKIN AND CAUSE DAMAGE.
| |
| | (1) Remove the radome hold open support rods and install in the storage clips on the forward pressure bulkhead.
| |
| | (2) Lower the radome carefully to the closed position.
| |
| | (3) Make sure that the top aft edge does not hit the fuselage skin.
| |
| | (4) If you find an interference, do these steps:
| |
| | NOTE: Do this procedure as many times as it is necessary to stop the interference between the top and the aft edge of the radome, and the fuselage skin.
| |
| | NOTE: Make sure that the seal ends do not touch at the bottom of the bulkhead. There must be an opening of 8.3 to 8.7 inches at the bottom of the bulkhead to allow radome compartment drainage.
| |
| | (a) Lift and hold the radome in an open position.
| |
| | (b) Loosen the attachment screws of the hinge bracket.
| |
| | (c) Move the brackets forward in relation to the radome and tighten the screws.
| |
| | (6) Make sure that the seal is bonded to the bulkhead 7 inches on the two sides of the airplane centerline and 2 inches that align each end of the seal.
| |
| | (7) Replace the seal if it is necessary as follows:
| |
| | NOTE: If the seal continues to turn down, install the three seal retainers, if they are not installed (detail D) (SB 53-1112).
| |
| | WARNING: DO NOT GET solvent, B00148 IN YOUR MOUTH OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM SOLVENT. SOLVENTS ARE HAZARDOUS MATERIALS. REFER TO THE PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REGULATORY AGENCY FOR HANDLING PROCEDURES.
| |
| | (b) Apply the Dow Corning 3145 RTV adhesive, A00281 to the bulkhead, 7 inches on the two sides of the airplane centerline and 2 inches that align each end of the seal.
| |
| | (c) Apply the Dow Corning 3145 RTV adhesive, A00281 to the flat, align part of the seal and install with the flat surface against the bulkhead.
| |
| | (d) Permit the Dow Corning 3145 RTV adhesive, A00281 to cure for 24 hours.
| |
| | (8) Examine the attachment clips on the fuselage bulkhead.
| |
| | NOTE: Carefully examine the areas adjacent to the hinges, for binding on the radome when you move the radome to closed position.
| |
| | (9) If an adjustment is necessary, do these steps:
| |
| | (a) Loosen the attachment bolts on the applicable clips and move the clips inboard.
| |
| | (b) Lower the radome to the closed position and install the screws.
| |
| | (c) Tighten the screws sufficiently to put the clips into contract with the inner face of the radome, and then remove the screws.
| |
| | (10) Open the radome carefully to prevent movement of the adjusted clips.
| |
| | NOTE: If the pressure sealant is moved on the clip attachment bolts, the sealant must be applied to make sure there is sufficient seal (PAGEBLOCK 51-31-00/201).
| |
| | (11) Tighten the clip attachment bolts 100-125 pound-inches.
| |
| | (12) Make sure that the mating surfaces are clean and bright and connect the bonding jumper to the correct attachment at one of the two sides of the radome hinge.
| |
| | (13) Make sure that the bonding resistance between the bonding jumper and the radome is not more than 0.001 ohm. (bonding meter, COM-614)
| |
| | NOTE: If a clip is not serviceable, you must remove it and install it after you clean the mating surface between the clip and the structure. You clean it to remove all the sealant or the unwanted material which causes high resistance.
| |
| | (14) With the radome in a closed position, make sure the screw holes of the radome attachment are aligned with the holes in the attachment clips.
| |
| | (15) If the adjustment is necessary, do these steps:
| |
| | (a) Put a mandrel or equivalent tool of applicable diameter in the applicable screw holes in the radome and the clip.
| |
| | (b) Apply the leverage to move the holes align.
| |
| | (c) Make sure not to damage the radome or the clip by use of too much force.
| |
| | (16) Install the screws with the compound, D50004 in the aft edge of the radome. Torque the screws to 120-150 inch-pounds.
| |
| | (17) Make sure the seal engages correctly and the radome clearances are correct.
| |
| | (18) Close all WEATHER RADAR circuit breakers on the P6 or the P18 circuit breaker panel.
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