(9)
Make sure that a container is in position below the Power Control Unit (PCU) (1).
Subtask 27-84-53-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21
4. Procedure
_________
(Ref. Fig. 401/TASK 27-84-53-991-001)
Subtask 27-84-53-860-054
A. Preparation for Installation
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Use CLEANING AGENTS (Material No. 11-004) and fully remove the anti-corrosion compound from:
-
the contact surface of the hydraulic motor,
-
the contact surfaces of the POB,
-
the contact surface of the PCU.
(4)
Prepare a small quantity of a mixture of 58 % SPECIAL MATERIALS (Material No. 05-002) and 42 % SPECIAL MATERIALS (Material No. 05-054).
(5)
Apply a quantity of the prepared mixture to:
-
the contact surface of the hydraulic motor,
-
the contact surfaces of the POB,
-
the contact surface of the PCU.
(6)
Apply LUBRICANTS (Material No. 06-001) to the splined surfaces.
(7)
Apply HYDRAULIC FLUIDS (Material No. 02-003) to the O-rings (4),(13),(20),(32),(35).
Subtask 27-84-53-420-050
B. Installation of the Valve Block
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
CAUTION : YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS
_______
LUBRICANT.
(1)
Install the new back-up rings (12), back-up rings (15) and the new O-rings (13), O-rings (20) on the transfer tubes (14).
(2)
Install the new O-ring (4) on the POB (41).
(3)
Install the new O-rings (32), O-rings (35) the new back-up ring (31),
back-up ring (34) on the transfer tube (33).
(4)
Put the end of the transfer tubes (33),(14) with the back-up rings (15),(31) and the O-rings (20),(32) in their related holes in the valve block assembly (23).
(5)
Safety the transfer tubes (14),(33) with the new locking rings (21) / locking rings (30)
(6)
Install the valve block assembly (23) with the hydraulic motor (7) and the POB (41).
NOTE : You must install the valve block assembly (23) together with
____
the POB (41) and the hydraulic motor (7).
(a)
Apply SPECIAL MATERIALS (Material No. 05-002) to the threads of the bolts (6).
(b)
Carefully install the hydraulic motor (7) on the transfer tubes
(14)
of the valve block assembly (23).
(c)
Carefully install the POB (41) on the transfer tube (33).
(d)
Attach the POB (41) to the hydraulic motor (7) with the washers
(5)
and the bolts (6).
(e)
TORQUE the bolts (6) to between 0.87 and 0.96 m.daN (76.99 and
84.95 lbf.in).
(7) Install the valve block assembly (23) with the POB (41) and the hydraulic motor (7).
(a)
Apply SPECIAL MATERIALS (Material No. 05-002) to the threads of the studs (42) and to the threads of the bolts (3).
(b)
Install the valve block assembly (23), the hydraulic motor (7) and the POB (41) together to the differential gearbox (40).
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