WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES
_______ ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
(1)
Prepare the HYDRAULIC PURIFIER (HSPA181-380J) as given in the subsequent steps:
(a)
Make sure that the hydraulic fluid content indicator (2) shows the maximum fill level.
-If necessary fill the reservoir of the HYDRAULIC PURIFIER (HSPA181-380J) with HYDRAULIC FLUIDS (Material No. 02-003) through the fill connection (21).
(b)
Connect the electrical connection (20) of the HYDRAULIC PURIFIER (HSPA181-380J).
(c)
Set the main switch (15) to the ON position:
-The white power on light (19) comes on.
(d)
Make sure that the red light (18) does not come on.
-If the red light (18) comes on, the rotary direction of the internal electrical pump is not correct. Change two phases of the electrical connection.
(e)
Turn the switch (14) to the START position.
(f)
Set the switch (16) to the ON position.
(g)
Fill the reservoir of the HYDRAULIC PURIFIER (HSPA181-380J) with HYDRAULIC FLUIDS (Material No. 02-003) through the fill connection (21) until the hydraulic fluid quantity is in the middle between the MIN and MAX mark of the hydraulic fluid content indicator (2).
(h)
Make sure that all values shown on the gages:
-
inlet oil temperature (5),
- outlet pressure (6),
-
inlet pressure (7) and
-chamber vacuum (8)
are in the given limits.
(i)
Turn the switch (14) to the AUTOMATIC position.
(j)
Close the fill connection of the (21) HYDRAULIC PURIFIER
(HSPA181-380J).
(k)
After approximately 30 minutes:
-
Set the switch (13) to the OFF position.
-
Set the main switch (15) to the OFF position.
(l)
Put a container below the valve (4).
(m)
Open the valve (4) to remove collected water.
(2)
Do the cleaning procedure of the Yellow hydraulic system as follows:
(a)
Make sure that the hydraulic system of the HYDRAULIC PURIFIER (HSPA181-380J) is depressurized. The low pressure indicator (10) and the high pressure indicator (9) must show 0.
-If necessary depressurize the hydraulic system by opening the drain valves (3).
(b)
Make sure that the drain valves (3) are closed.
(c)
Connect the hydraulic lines (1) of the HYDRAULIC PURIFIER (HSPA181-380J) to the aircraft connectors
-3006GM suction
-3008GM delivery.
(d)
Set the main switch (15) to the ON position:
-The white power on light (19) comes on.
(e)
Turn the switch (14) to the START position.
(f)
Set the switch (16) to the ON position.
(g)
Make sure that all values shown on the gages:
-
inlet oil temperature (5),
- outlet pressure (6),
-
inlet pressure (7) and
-chamber vacuum (8)
are in the given limits.
(h)
Turn the switch (14) to the AUTOMATIC position.
(i)
Set the main pump switch (17) to the ON position.
(j)
Make sure that the low pressure indicator (10) shows the same pressure as shown on the gage of the Yellow hydraulic reservoir. If necessary, adjust the pressure with the pressure control valve (11).
(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 Yellow 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 Yellow hydraulic system operate the subsequent hydraulic users 2 times minimum every 30 minutes:
-
the rudder,
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