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SEE
ANTENNA MOUNT ASSEMBLY AND SUPPORT ASSEMBLY
DIGITAL PROTRACTOR
TRANSFER PLATE
ROLL ADJUSTMENT BOLTS (QTY 5)-TWO BOLTS HIDDEN BEHIND TRANSFER PLATE SEE
ROLL TRANSFER
F
Weather Radar Antenna Mount Maintenance Practice
Figure 201 (Sheet 3)
C04524
EFFECTIVITY
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(d)
Install the four pitch adjustment bolts with washers and nuts through the support assembly and the airplane support structure.
(e)
Install the two pivot bolts with washers and nuts through the support assembly and airplane support structure.
(f)
Lightly tighten the six-pitch bolts.
(5)
Do the weather radar antenna mount adjustment task
(Ref 34-43-19/201).
(6)
Install the WXR antenna (Ref 34-43-03/401).
(7)
Close the nose radome (Ref 34-43-03/401).
4. Weather Radar Antenna Mount Adjustment (Fig. 201)
______________________________________
A. General
(1)
When this adjustment is done, the airplane must be in a position that is as level as possible.
(2)
During moderate or high wind conditions the airplane must be put in a hanger so wind gusts do not affect the adjustment.
(3)
Keep a minimum number of maintenance persons on the airplane when this adjustment is done.
(4)
The digital protractor is used as part of the G34004 adjustment equipment. If an alternate digital protractor is used, make sure the resolution, accuracy and repeatibility is the same or better as the specifications listed below:
(a)
Resolution: 0.01 degrees (0 to 10 degrees)
(b)
Accuracy: | 0.05 degrees (0 to 10 degrees)
(c)
Repeatability: | 0.05 degrees
(5)
KELL STROM PRO 3600; Do not use the digital protractor if a LO bAt message is shown.
(6)
LUCUS ANGLE STAR DP-60; Do not use the digital protractor if a LO BAT message is shown.
B. Equipment
(1)
G34004 Weather Radar Antenna Mount Adjustment
Equipment
(a)
KS6005 Digital Protractor (recommended) Kell Strom Pro 3600
(b)
DP-60 Digital Protractor (alternative) Lucus Angle Star
(2)
Lint-free dry cloth
C. References
(1)
AMM 25-25-01/401, Passenger Seat
(2)
AMM 34-43-03/401, Weather Radar Antenna
(3)
AMM 53-21-02/401, Main and Upper Deck Floor
(4)
PASSENGER AIRPLANES,
(a)
AMM 25-25-01/401, Passenger Seat
(b)
AMM 34-43-03/401, Weather Radar Antenna
(c)
AMM 53-21-02/401, Main And Upper Deck Floor
(5)
FREIGHTER AIRPLANES,
(a)
AMM 25-57-04/401, Caster/Roller Tray
(b)
AMM 25-58-01/401, Lock/Stop Roller and Caster Trays
(c)
AMM 34-43-03/401, Weather Radar Antenna
D. Procedure
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
EFFECTIVITY
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(a) P7 Overhead Circuit Breaker Panel
1) WEA RDR R/T 1
2) WEA RDR R/T 2
3) WEA RDR IND 1
4) WEA RDR IND 2
(2) Open the nose radome (Ref 34-43-03/401) if it is necessary.
(3) PASSENGER AIRPLANES,
Remove this equipment to get to the reference transfer location as
shown in Fig. 201:
(a) Remove the passenger seats (AMM 25-25-01/401).
(b) Remove the floor panels (AMM 53-21-02/401).
(4) FREIGHTER AIRPLANES,
Remove this equipment to get to the reference transfer location as
shown in Fig. 201:
(a) Remove the caster/roller trays (AMM 25-57-04/401).
(b) Remove the lock/stop roller trays (AMM 25-58-01/401).
(c) Remove the main deck floor panel or panels (AMM 53-21-02/401).
(5) Install the reference plate:
NOTE: For the Kell Strom Pro 3600 digital protractor, use in one____
mode, either the standard reference or alternate reference
(ALT -0-) mode, through the entire adjustment.
The procedure that follows is written in the standard
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