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TB20 MAINTENANCE MANUAL 27 FLIGHT CONTROLS TB20飞机维护手册 飞行操纵(12)

时间:2011-11-01 13:12来源:蓝天飞行翻译 作者:航空
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2) Make sure that the main switch-breaker is open.
3) Install the warning sign prohibiting main switch-breaker operation.
WARNING
DO NOT OPERATE
MAINTENANCE WORK IN PROGRESS
4) Remove the cowling under hull 218.
5) Remove inspection doors 511, 512, 516, 611, 612 and 616.
6) Remove inspection doors 235L and 235R, 211L and 211R (if installed). Otherwise, remove the covers
on the instrument panel front and tilt the panel.
I C. Check of slack values (Figures 202, 203, 204 and 205, Tables 201 and 202)
1) Check the aileron-to-aileron slack - see Figure 202, Detail A.
a) Hold one aileron aligned in neutral position with the flap.
b) Measure the slack on the other aileron : max. permissible slack value, 0.157 in (4 mm).
c) If the slack is out-of-tolerance, refer to step 4).
2) Check control wheel-to-aileron slack - see Figure 202, Detail B.
a) Hold the control wheel in neutral position.
b) Measure the aileron slack : max. permissible slack value, 0.236 in (6 mm).
c) If the slack is out-of-tolerance, refer to step 6).
3) Check control wheel-to-control wheel slack - see Figure 202, Detail C.
a) Hold one control wheel in neutral position.
b) Measure the slack by actuating the other control wheel : max. permissible slack value, 0.196 in
(5 mm).
c) If the slack is out-of-tolerance, refer to step 5).
 
4) If aileron-to-aileron slack is out-of-tolerance, perform the following operations :
a) Mark and remove roll control rods and bellcranks.
b) Clean rods and bellcranks with a clean lintfree cloth soaked with cleaning agent (TB 11-002).
c) Measure the lateral slack between torque rod (18) and half-bearings (31) : max. permissible slack value, 0.02 in (0.5 mm).
d) Measure the slack of ball joints of input rod (49), bellcranks (45) and lever (34) : max. permissible slack value, 0.003 in (0.08 mm) per ball joint.
e) Perform a dimensional check of roll control supports, rods and bellcranks borings - see Table 201.
f) Replace the defective components or contact the manufacturer for repair.
g) Install roll control rods and bellcranks - refer to 20-00-11.
5) If control wheel-to-control wheel slack is out-of-tolerance, perform the following operations :
a) Remove pylon assy - refer to 27-30-02.
b) Clean pylon assy with a clean lintfree cloth soaked with cleaning agent (TB 11-002).
c) Perform a dimensional check of roll control pylon assy, torque rod and lever borings - see Table 202.
d) Remove upper rods (12) and (14) and measure the slack of ball joints : max. permissible slack value, 0.003 in (0.08 mm) per ball joint.
e) If the slack of ball joints is within the tolerances, remove the control wheels equipped with the gimbal joints.
f) Measure the slack of the gimbal joints : max. permissible slack value, 0.0078 in (0.2 mm) around the gimbal joints.
 
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