3. Job Set-up
__________
(Ref. Fig. 301/TASK 12-13-27-991-001)
Subtask 12-13-27-941-052
A. Safety Precautions
(1) Put the safety barriers in position.
Subtask 12-13-27-860-051
B. Aircraft Maintenance Configuration
(1) Pressurise the Green and the Yellow hydraulic systems (Ref. TASK 29-23-00-863-001) and (Ref. TASK 29-23-00-863-002).
R (2) Move the THS fully UP to fully DOWN more than three times then back R to the zero position (Ref. TASK 27-41-00-220-003).
(3)
Depressurize the Green and Yellow hydraulic systems (Ref. TASK 29-10-00-864-001) (Ref. TASK 29-10-00-864-002).
(4)
Put a warning notice in the cockpit to tell persons not to pressurize the Green and Yellow hydraulic systems.
(5)
Put a warning notice in the cockpit to tell persons not to operate the THS.
NOTE : At a minimum of one hour (after the last movement of the THS
____ actuator) you can do a check of the level of the oil. This time is necessary for the level of the oil to become stable. The level of the oil in the THS actuator housing changes with differences in the housing temperature. At a THS actuator housing temperature of 20 deg.C (68.00 deg.F) the level of the oil must be at the maximum mark.
(6) On the tail cone, make sure the THS is opposite the 0 mark.
THS Actuator Figure 301/TASK 12-13-27-991-001
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Subtask 12-13-27-865-051
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/ELAC1/NORM/SPLY 15CE1 B11 49VU FLIGHT CONTROLS/THS/ACTR/MOT2 19CE2 B09 105VU FLT CTL/ELAC1/STBY SPLY 16CE1 A01 121VU FLIGHT CONTROLS/THS ACTR/MOT3 19CE3 Q17 121VU FLIGHT CONTROLS/THS ACTR/MOT1 19CE1 Q16
Subtask 12-13-27-010-053
D. Get Access
(1)
Put the access platform in position below zone 310.
(2)
Open the access door 312AR.
4. Procedure
_________
(Ref. Fig. 301/TASK 12-13-27-991-001)
Subtask 12-13-27-612-050 R A. Oil Replenishment of the THS Actuator R WARNING : WEAR GOGGLES WHEN YOU REMOVE OR INSTALL THE LOCKWIRE. CUT,
_______ R REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE R LOCKWIRE CAN CUT OR BLIND YOU.
(1)
Remove the cap (4) from the oil fill plug (3).
(2)
Install the TOOL - OIL FILLING, THS ACTUATOR (0U190363) on the oil fill plug (3).
R (3) Monitor the oil quantity indicator (5). Fill the THS actuator with R OILS (Material No. 03-003) until the oil level is at the MAXI mark.
R NOTE : It may be necessary to remove the plug (1) to make the filling
____ R procedure easier. R
R (4) If necessary, cut and discard the lockwire from the plug (1), remove R the plug (1) and remove the O-ring (2). Discard the O-ring (2).
(5) Remove the TOOL - OIL FILLING, THS ACTUATOR. R (6) Clean the cap (4) with a clean MISCELLANEOUS (Material No. 19-003).
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(7)
Install the cap (4).
(8)
If the plug (1) has been removed, do the steps that follow:
(a) Make sure that the plug (1) and the plug interface are clean. R (b) Apply OILS (Material No. 03-003) to the new O-ring (2).
(c)
Install the new O-ring (2) on the plug (1) with CONE - MOUNTING, THS ACTUATOR (0U145506).
(d)
Install the plug (1) on the THS actuator.
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