(2)
 Make sure that the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) is installed on the slat/flap control lever (Ref. TASK 27-00-00-480-002).

 (3)
 Make sure, that the LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT (98D27504030001) are installed at the left torque shaft (6256CM) and the right torque shaft (6206CM) (Ref. TASK 27-50-00-400-003).

 (1)
 To install the same Power Control Unit (PCU), clean the splined surfaces of the connections with CLEANING AGENTS (Material No. 11-002).

 (2)
 Clean the mounting bushes and make sure that they are in a good condition.

 (3)
 Apply COMMON GREASE (Material No. 04-018) to the splines of the left input universal joint (10) and the right input universal joint (35).

 (4) Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001)
 (5) Make sure that the reservoirs of the Green and Yellow hydraulic systems are depressurized (Ref. TASK 29-14-00-614-001).
 (6) Make sure that the warning notice is in position to tell persons not to pressurize the hydraulic systems.
 (7) Make sure that the main doors of the main gear are open (Ref. TASK 32-12-00-010-001).
 (8) Make sure that the access platform is in position at the main gear main door opening.
 (9) Make sure that the PIN RIGGING-FLAPS (TRACK 1) (98D27504005000) are installed at the left and right flap track positions 1.
 (10) Make sure that a container is in position below the Power Control Unit (PCU) (1). 
R  **ON A/C 301-399, 
R  Subtask 27-54-51-860-053-A 
R  A. Aircraft Maintenance Configuration 
R R  (1) Make sure that the flaps are retracted to the 0 degree position (Ref. TASK 27-50-00-866-009). 
R R R  (2) Make sure that the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) is installed on the slat/flap control lever (Ref. TASK 27-00-00-480-002). 
R R R R  (3) Make sure, that the LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT (98D27504030001) are installed at the left torque shaft (6256CM) and the right torque shaft (6206CM) (Ref. TASK 27-50-00-400-003). 
R R R  (4) Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001) 
R R  (5) Make sure that the reservoirs of the Green and Yellow hydraulic systems are depressurized (Ref. TASK 29-14-00-614-001).

R R  (6) Make sure that the WARNING NOTICE is in position to tell persons not to pressurize the hydraulic systems. 
R R  (7) Make sure that the main doors of the main gear are open (Ref. TASK 32-12-00-010-001). 
R R  (8) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position at the main gear main door opening. 
R R  (9) Make sure that the PIN RIGGING FLAPS (98D27504006000) are installed at the left and right flap track positions 1. 
R R  (10) Make sure that a CONTAINER 5 L(1 1/2 USGAL) is in position below the Power Control Unit (PCU) (1). 
R  **ON A/C ALL
 Subtask 27-54-51-865-051
 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 27-54-51-991-001, 402/TASK 27-54-51-991-002)
 Subtask 27-54-51-910-050
 A. Preparation for the 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.

 Subtask 27-54-51-420-051
 B. Installation of the Power Control Unit 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 PCU (1) on the fuselage fitting as follows:
 (a)
 Put the PCU (1) in position and install the attachment bolt (30), the washer (20) and the nut (19).
　
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