TCH.1C-27J-2-27JG
2-53.1 HYDRAULIC ACCUMULATORS SHUT-OFF
VALVE CHECK (refer to figure
(refer to figure
) , (refer to figure
) (Cont'd)
7.Perform complete manoeuvres by the control stick in
pitch direction (from neutral to fully forward, then to
fully backwards and returning to neutral) and check
that the number of manoeuvres is at least 6 (transient
accumulator discharged) before the pressure gauge of
the elevator system No. 2 accumulator shows 1000
psi. The pressure gauge of the elevator system No. 1
two accumulators must continue to indicate 3000 psi.
8.Activate the reserve hydraulic accumulators by
pressing the ACC (10) pushbutton (lamp ON
illuminated).
9.Perform complete manoeuvres by the control stick in
pitch direction (from neutral to fully forward, then to
fully backwards and returning to neutral) and check
that the number of manoeuvres is at least 6 before the
pressure gauge of the elevator system No. 1 two
accumulators show 1000 psi.
10.At test completion de-select the pushbutton ACC (10)
and open the circuit breakers located on Overhead
Circuit Breakers Panel (271VE) (5):
A.HYDRAULICS CNTR ACMP 1 (4DE) (6) in position
B 7.
B.HYDRAULICS CNTR ACMP 2 (3DE) (7) in position
B 8;
C.HYDRAULICS LOW PRESS CHNL 1 (18DE) (8) in
position B 9;
11.Reconnect properly the aircraft connector (28 DEA)
(2) and (29 DEA) (5) to the (28 DE) (1) and (29 DE)
(4) LOW PRESSURE switches.
(Cont'd)
27-30-20
2-420