(k)
Make sure that the value shown on the high pressure gage (9) is in the given limit.
(l)
Look at the water content indicator (22) to examine the water content of the hydraulic fluid.
NOTE : The water content indicator is optional available for the
____ HYDRAULIC PURIFIER (HSPA181-380J). If your HYDRAULIC PURIFIER (HSPA181-380J) has no water content indicator, you must take a hydraulic fluid sample (Ref. TASK 12-32-29-281-001).
(m)
Obey the fluid level of the Blue hydraulic reservoir during the cleaning procedure. You can adjust the reservoir level with the pressure control valve (11).
(n)
To make a fluid flow in the Blue hydraulic system operate the subsequent hydraulic users 2 times minimum every 30 minutes:
-
the rudder,
-
the ailerons,
-
the elevators,
-
the spoilers and
-
the slats.
(o)
Do a check of the water content indicator (22) at the HYDRAULIC PURIFIER (HSPA181-380J) or take a hydraulic fluid sample (Ref. TASK 12-32-29-281-001).
(p)
If the water content is still high, continue with the cleaning procedure.
(q)
Stop the cleaning procedure when the water content indicator (22), or the analysis of the hydraulic fluid sample gives a low water content.
(r)
Adjust the correct hydraulic fluid level in the Blue hydraulic reservoir by operating the pressure control valve (11).
(s)
Set the main pump switch (12) to OFF.
(t)
Set the switch (13) to OFF.
(u)
Set the main switch (15) to OFF.
(v)
Disconnect the hydraulic lines (1) of the HYDRAULIC PURIFIER (HSPA181-380J) from the aircraft connectors.
(w)
Disconnect the electrical connection (20) of the HYDRAULIC PURIFIER (HSPA181-380J).
5. Close-up
________ Subtask 12-36-29-860-094
A. Put the aircraft back to the serviceable condition.
(1)
Look at the quantity indicator on the hydraulic reservoir and make sure:
-that the fluid level is correct, add fluid as necessary (Ref. TASK 12-12-29-611-001).
(2)
Look at the air pressure gage on the hydraulic reservoir and make sure:
-that the air pressure in the reservoir of the Green System is 50 psi, pressurize the hydraulic reservoir as necessary (Ref. TASK 29-14-00-614-002).
(3)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
Subtask 12-36-29-410-086
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 197EB.
(3)
Close the access door 197FB.
TASK 12-36-29-600-007
Replacement of the Hydraulic Fluid of the Yellow Hydraulic System with the Tool
-Hydraulic Fluid Change (DH0501)
WARNING : DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER
_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.
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.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______
-FLUSH IT AWAY WITH CLEAN WATER
-GET MEDICAL AID.
1. Reason for the Job
__________________
To change the type of hydraulic fluid, or to change the hydraulic fluid if the contamination is out of tolerance.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific hydraulic ground power supply (reservoir capacity
min. 150 l.) No specific plug type E0052R8B3APNE No specific access platform 1.8 m (5 ft. 11 in.) No specific container 3.0 l (0.7925 USgal) No specific Torque Wrench : range 0.20 to 3.60 m.daN 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM SERVICING 2(134)
