747-400 AMM 飞机维护手册大气 AIR 2(33)_航空信息_民用航空_通用航空

曝光台注意防骗网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

NOTE: Do not tighten the detail bolt too much.____
9) Tighten the detail jamnut with your hand. a) Install the bellcrank rig pin. b) Turn the adjusters until you can install all the rig pins for the unison ring. c) Tighten the nuts, at each of the rod end bearings which were changed, to a minimum of 15-22 pound-inches (1.7-2.5 newton-meters) plus the torque necessary to turn the nut on the bellcrank clevis bolt.
1 Continue to tighten the nut until the slot in the_ nut aligns with the hole in the bellcrank clevis bolt.
d) Install the cotter pins. e) Examine the adjusters and rod end bearings for the correct installation.
f) Install a piece of wire into the inspection holes at the two ends of each adjuster. g) If you cannot put the wire through the inspection holes, the installation is satisfactory. h) If you can put the wire through one of the inspection holes, do the steps from above which disassemble and adjust the adjuster as it is necessary until the wire does not go through the inspection holes.

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i) With the rod end bearing correctly installed, tighten the jamnuts at each rod end to 115-150 pound-inches (13.0-17.0 newton-meters).
j) Install the four rig pins for the unison ring.
k) If you cannot install one of the rig pins, then adjust the unison ring again.
l) If you can install all the rig pins, then remove all the rig pins and the PWA 86344 holder from the unison rings and the bellcrank.
m) Bend one set of tabs on the rod end bearing. n) Bend the other set of tabs on the jamnut. o) Install the lockwire and seal.
G. Put the Aircraft Back to Its Usual Condition.
S 215-132-N00
(1) Do an inspection of the position indication for the variable stator vane actuator (SVA) (AMM 75-31-00/601).
S 415-088-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(2)
Close the right thrust reverser (AMM 78-31-00/201).

S 415-068-N00

(3)
Close the right core cowl panel (AMM 71-11-06/201).

S 415-069-N00

(4)
Close the right fan cowl panel (AMM 71-11-04/201).

S 445-070-N00

(5)
Do the activation procedure for the thrust reverser
(AMM 78-31-00/201).

S 715-046-N00

(6)
Do the test for the variable stator vane actuator (SVA) that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).

TASK 75-31-00-825-133-N00
4. Variable Stator Vane Actuator Adjustment (Hydraulic Procedure)________________________________________
A. Special Tools and Equipment
(1) PWA 29451 Adapter - Pratt & Whitney, Commercial
Products Division, 400 Main
Street, East Hartfold,
Connecticut 06108

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
INTERMEDIATE CASE
UNISON RING
DRIVE LINKAGE
SEE A
BELLCRANK
SEE B

ACTUATOR FOR THE
FWD VARIABLE STATOR
VANES
A
POSITIONING
SLOT
BELLCRANK
ARM
SUPPORT
BRACKET
PWA 86097 RIG PIN
ACTUATOR FOR THE
VARIABLE STATOR VANES
SEE C
FWD
B
L-A3219
Variable Stator Vane Actuator Rigging
Figure 503 (Sheet 1)