-
The visual inspection of the oil level in the gear box through an oil level sight-glass.
THS HYDRAULIC ACTUATION - ADJUSTMENT/TEST
_________________________________________
TASK 27-44-00-710-001
Operational Test of the Jamming Protection Device of the Trimmable Horizontal Stabilizer Actuator
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
1. Reason for the Job
__________________
Refer to the MPD TASK: 274000-03
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific feeler gage No specific interphone No specific permanent ink No specific access platform 5.5 m (18 ft. 1 in.) 0U190857 1 TOOL - JAMMING SIMULATION
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire, corrosion-resistant steel, dia. 0.6 mm
(0.024 in.) No specific permanent ink
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
27-44-00-710-003 Operational Test of the Trimmable Horizontal Stabilizer Actuator with both (Green and Yellow) and Individual Hydraulic Systems
27-96-00-710-022 Operational Test of the THS Actuator Electrical Control (Activation for BITE Test)
29-23-00-863-001 Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
29-23-00-864-001 Depressurize the Green and Yellow Hydraulic Systems
after Operation of the PTU 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 27-44-00-991-001 Fig. 501 27-44-00-991-003 Fig. 502 27-44-00-991-004 Fig. 503
3. Job Set-up
__________
(Ref. Fig. 501/TASK 27-44-00-991-001, 502/TASK 27-44-00-991-003, 503/TASK 27-44-00-991-004)
Subtask 27-44-00-010-050
A. Get Access
(1)
Put the access platform in position near to the access door 312AR.
(2)
Open the access door 312AR.
(3)
On the left and right valve control shaft (7) of the THS actuator:
(a)
Cut, remove and discard the lockwire that safeties the cap (6) on the valve control shaft (7). (Ref. Fig. 502/TASK 27-44-00-991-003)
(b)
Remove the cap (6) from the valve control shaft (7).
(3)
If the side with the LH or RH, A/C N.DN on the tool is installed, turn the mechanical input clockwise (CW) until the detent is recentered.
Operational Test of the Jamming Protection Device
Figure 501/TASK 27-44-00-991-001
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Test Procedure of the Jamming Simulation Tool
Figure 502/TASK 27-44-00-991-003
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Reference Marks of the Control Valve Detent
Figure 503/TASK 27-44-00-991-004
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(c) Cut, remove and discard the lockwire that safeties the threaded bush (5).
Subtask 27-44-00-220-050
B. On the left and right threshold box assy do the subsequent steps:
CAUTION : YOU MUST DO ALL THE STEPS OF THIS TEST IN THE SEQUENCE GIVEN TO_______ PREVENT INCORRECT OPERATION OF THE AIRCRAFT.
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