(a)
Disconnect the hydraulic lines (11).
(b)
Remove the tie wrap (9) and disconnect the seal drain line (10).
(c)
Disconnect the case drain line (8).
(d)
Install the blanking caps on the open line ends (8),(10),(11).
(e)
Install the blanking plugs in the ports of the PCU (1).
(f)
Disconnect the electrical connector (22) from the valve block assembly (23).
(g)
Put blanking caps on the disconnected electrical connectors.
(h)
Remove the bolts (3) and the washers (2).
(i)
Support the POB (41), the valve block assembly (23) and the hydraulic motor (7).
(j)
Remove the nuts (24) and the washers (25) from the studs (42).
(k)
Remove the valve block assembly (23), the POB (41) and the hydraulic motor (7) together from the differential gearbox (40).
(2)
Remove the valve block assembly (23) from the POB (41) and the hydraulic motor (7):
(a)
Remove the bolts (6) and the washers (5).
(b)
Carefully remove the hydraulic motor (7) from the POB (41) and from the transfer tubes (14) on the valve block assembly (23).
(c)
Remove and discard the O-ring (4).
(d)
Carefully remove the POB (41) from the transfer tube (33).
(3)
Remove and discard the O-rings (13),(35) and the back-up rings (12),(34) from the transfer tubes (14),(33).
(4)
Remove and discard the locking rings (21),(30) from the transfer tubes (14),(33).
(5)
Remove the transfer tubes (14),(33) from the valve block assembly (23).
(6)
Remove and discard the back-up rings (15),(31) and the O-rings (20),(32) from the transfer tubes (14),(33).
Valve Block Figure 401/TASK 27-54-53-991-001
1EFF : 1 1R 1CES ALL 1 11 1 27-54-53 Page 405 May 01/04
1EFF : ALL 1 27-54-53Page 406 1 1 May 01/04R 1 1 1CES 1
TASK 27-54-53-400-001
Installation of the Valve Blocks 23CV, 24CV of the Power Control Unit (Flap)
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
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.
NOTE : The installation procedure for the valve block 23CV is specified. The
____ installation procedure for the valve block 24CV is almost the same. If there are differences in the procedures, they are specified.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific container
No specific tie wrap
No specific warning notice
No specific access platform 3.0 m (9 ft. 10 in.)
No specific 1 ACCESS PLATFORM 3M (10 FT)
No specific 1 CONTAINER 5 L(1 1/2 USGAL)
No specific 1 WARNING NOTICE
R No specific Torque Wrench : range 0.00 to 1.20 m.daN R (0.00 to 9.00 lbf.ft) No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft) No specific Torque Wrench : range 1.00 to 10.00 m.daN
(8.00 to 75.00 lbf.ft) 98D27504005000 2 PIN RIGGING-FLAPS (TRACK 1) -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
98D27504006000 2 PIN RIGGING FLAPS 98D27803000000 1 LOCKING TOOL - FLAP/SLAT CONTROL LEVER
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 02-003 F NSA 307110 TYPE 4
HYDRAULIC FLUID (PHOSPHATE ESTER BASE)
(Ref. 20-31-00) Material No. 05-002 USA MIL-P-8116
PUTTY, ZINC CHROMATE GENERAL PURPOSE (Ref. 20-31-00) Material No. 05-054
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