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TB20 MAINTENANCE MANUAL 32 起落架 TB20飞机维护手册(61)

时间:2011-11-03 13:08来源:蓝天飞行翻译 作者:航空
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9) Put the assembly onto supports or vees (6) by placing the dia. .77 in (19.5 mm) smooth pin (5) on yoke side.
10) With the depth gage, measure X and Y dimensions.
11) Determine the Z dimension that must be equal to :
X - Y = Z = .14 in ( - 0 ; + .02 in) [3.5 mm (- 0 ; + .5)]
NOTE : Under no circumstances, should Z dimension be less than .14 in (3.5 mm). Should it be the case, a misalignment toward the top of smooth pin (3) and a tendency to the unlocking of the strut would result.
12) Check with a depth gage that the play (C) is less than or equal to 0.002 in (0.05 mm) between roller (9) and the rear bearing surface of hook (8).
13) Be sure of an overlap (A) between 0.22 in (5.5 mm) and 0.25 in (6.3 mm) between hook (8) and front half-leg (2).
14) If one of the 3 dimensions is not complied with, refer to Paragraph C.
15) After adjustment, install the hinged strut - refer to Paragraph 2. I 16) Adjust the microswitch - refer to 32-30-07.
 
C. Adjustment procedure of the main landing gear hinged strut (Figure 204)
WARNING IT IS MANDATORY TO OBTAIN THE THREE DIMENSIONS. IF ONE, TWO OR THE THREE DIMENSIONS CANNOT BE OBTAINED, CHANGE THE DEFECTIVE DETAIL PART(S) AND CHECK THE THREE DIMENSIONS AGAIN.
1) If Z dimension is less than .14 in (3.5 mm), adjust with the Geneva file then with abrasive cloth (TB 05-916B) the bearing surface (B) of the front half-leg (2) on the roller (9). Make it moderatly, observe the perfect spotfacing of the bearing surface (B) and the radius (R) maintain of .02 in (.5 mm) allowing a better hook sliding on the front half-leg when locking.
2) If the overlap dimension (A) is less than 0.22 in (5.5 mm), rework with the Geneva file then with abrasive cloth (TB 05-916B) the bearing surface of the front half-leg (2) in contact with the hook (8). Make sure to maintain the parallelism between the half-leg (2) bearing surface and hook (8) bearing surface.
 
14323003AAAGWZ4200 WARNING : THE NON-OBSERVANCE OF DIMENSIONS (PARTICULARLY OF TOLERANCE DIMENSIONS) MAY LEAD TO ANALYSIS ERRORS OF THE GEAR STRUT CHECKING METHOD. CHECK BEFORE USE FOR LOCATING PINS CONDITION.

Specific material - Inspection / Check
Figure 203
WA
Validity : S / N 1 - 9999 32-30-03Page 208
(BA) JUN 01
 
NOTE : To make drawing reading easy, the microswitch is not represented.
Main landing gear hinged strut - Inspection / Check
Figure 204
 
PAGE INTENTIONALLY LEFT BLANK
 
NOSE LANDING GEAR HINGED STRUT
MAINTENANCE PRACTICES
1. SERVICING - NOSE LANDING GEAR HINGED STRUT (Figure 201)
A. Tools and consumable materials
None
B. Manual unlocking of the hinged strut
1) Jack up the aircraft - refer to 07-10-00.
2) Disengage the "LDG GEAR" switch-breaker.
3) Insert a big screwdriver according to Figure 201. Push the screwdriver towards the wheel (following
 
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