TCH.1C-27J-2-29JG
2-5.4
HYDRAULIC SYSTEM 1 RE-OILING (Cont'd)
NOTE
To perform this check the aircraft shall be on
the wheels with a metal plate positioned
under the NLG tyre.
1.Select the NOSE WHEEL STEER switch to ON.
2.Turn the nose wheel steering control handle fully to
the left then turn from fully left to fully right and from
fully right to fully left to allow the NLG to turn left and
right.
3.Repeat the nose wheel stering actuation 4 times until
the Nose Wheel Steering circuit is scavenged (4 nose
wheel stering actuation cycles correspond to 5 oil
litres discharged from the nose wheel stering circuit).
4.Stop the re-oiling of the nose wheel Steering circuit.
5.Return the NOSE WHEEL STEER switch to OFF.
-HYDRAULIC CIRCUITS RESTORATION
1.Replace the filters cartridge by a new unit and
clean-up the filter housing from the old type oil.
2.Fill-up the aircraft reservoirs system 1 and system 2,
through the Hydraulic Test stand, with new type oil.
3.Turn-off the Hydraulic Test stand.
4.Activate the ACMP 1 to allow the oil to circulate in the
ACMP 1 circuit by activating a utility (i.e rudder,
elevators), then stop the ACMP 1.
5.Activate the ACMP 2 to allow the oil to circulate in the
ACMP 2 circuit by activating a utility, then stop the
ACMP 2
6.Rotate by hand the propeller Engine 1 to activate the
EDP 1 and to allow the oil to circulate in the EDP 1
circuit.
7.Rotate by hand the propeller Engine 2 to activate the
EDP 2 and to allow the oil to circulate in the EDP 2
circuit.
(Cont'd)
29-10-00
2-36