R **ON A/C ALL
Subtask 27-54-52-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 6CV B07 121VU FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 8CV Q21
4. Procedure
_________
(Ref. Fig. 401/TASK 27-54-52-991-001)
Subtask 27-54-52-860-052
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 a lint-free cotton cloth MISCELLANEOUS (Material No. 19-003) and the CLEANING AGENTS (Material No. 11-004) to fully remove the anti-corrosion compound from:
-
the mating faces of the POB
-
the mating face of the hydraulic motor
-
the mating face of the PCU.
(4)
Prepare a small quantity of a mixture of:
-58 % of the zinc chromate putty SPECIAL MATERIALS (Material No. 05-002) and
-42 % of the zinc powder SPECIAL MATERIALS (Material No. 05-054).
(5)
Apply a quantity of the prepared mixture to:
-
the mating faces of the POB
-
the mating face of the hydraulic motor
-
the mating face of the PCU.
(6)
Apply the LUBRICANTS (Material No. 06-001) to the splined surfaces.
(7)
If installed, remove the screw, the protection cap and the packing from the replacement pressure-off brake. (Ref. Fig. 402/TASK 27-54-52-991-002)
Subtask 27-54-52-420-050
B. Installation of the Pressure-Off Brake
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.
NOTE : The installation procedure for the POB at the valve block 23CV is
____ given. The installation procedure for the POB at the valve block 24CV is almost the same. The differences in the procedures are given.
(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 O-ring (4) to the POB (41).
(3)
Install the new back-up rings (31), back-up rings (34) and the new O-rings (32), O-rings (35) on the transfer tube (33).
1EFF : ALL 1 27-54-52Page 412 1 1 May 01/04R 1 1 1CES 1
Pressure-Off Brake - Removal of Storage Parts Figure 402/TASK 27-54-52-991-002
1EFF : 1 1R 1CES ALL 1 11 1 27-54-52 Page 413 May 01/04
(4)
Put the transfer tubes (14),(33) in their related holes in the valve block assembly (23).
(5)
Safety the transfer tubes (14),(33) with the new locking rings (21), locking ring (30).
(6)
Apply SPECIAL MATERIALS (Material No. 05-002) to the threads of the bolts (6).
(7)
Carefully install the hydraulic motor (7) on the transfer tubes (14) of the valve block assembly (23).
(8)
Carefully install the POB (41) on the transfer tube (33).
(9)
Attach the POB (41) to the hydraulic motor (7) with the washers (5) and the bolts (6).
(10)
TORQUE the bolts (6) to between 0.87 and 0.96 m.daN (76.99 and 84.95 lbf.in).
(11)
Install the POB (41), the hydraulic motor (7) and the valve block assembly (23).
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