Subtask 29-11-48-865-052
 C. 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/WTB/SLT/SYS2 11CV P19 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21 122VU FLIGHT CONTROLS/WTB/SLT/SYS1 9CV S06
 4. Procedure
_________
 (Ref. Fig. 401/TASK 29-11-48-991-001)
 Subtask 29-11-48-420-052
 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 interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-004).

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Put a container below the applicable check valve.

 (4)
 Remove the blanking plugs from the line ends.

 (5)
 Make sure that the hydraulic line end-fittings are in the correct condition.

 (6)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 Subtask 29-11-48-420-050
 B. Installation of the Check Valve
 (1)
 Apply HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the check valve (4) and the coupling nuts (1), (3) and (5).

 (2)
 Attach the check valve (4) to the coupling nut (5).

 (3)
 Install the pipe (2) and attach it with the coupling nuts (1) and (3).

 Subtask 29-11-48-860-052
 C. Aircraft Configuration
 (1)
 Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) from the flap/slat control lever on 114VU.

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

 Subtask 29-11-48-865-053
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5CV, 7CV, 9CV, 11CV, 1701GK, 1702GK.
 Subtask 29-11-48-860-054
 E. Aircraft Configuration
 (1)
 Install the safety collar on the circuit breakers 9CV and 11CV.

 (2)
 Connect the PTU isolation coupling (Ref. TASK 29-23-00-860-002).

 Subtask 29-11-48-863-050
 F. Pressurize the Applicable Hydraulic System WARNING : PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY
_______ FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
 (1)
 Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001). Subtask 29-11-48-710-050

 G.
 Test

 (1)
 Do a Wing Tip Brake and Pressure-Off Brake test (Ref. TASK 27-81-00-710-001).

 (2)
 Make sure that the check valve does not leak.

 5. Close-up
________
 (Ref. Fig. 401/TASK 29-11-48-991-001) Subtask 29-11-48-864-056
 A. Depressurize the Hydraulic System
 (1)
 Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001). Subtask 29-11-48-865-054

 B.
 Open, safety and tag this(these) circuit breaker(s):

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21

 Subtask 29-11-48-410-050
 C. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the applicable access panel:

 -
FOR 1410GM
 install 522SB

 -
FOR 1411GM
 install 622SB

 Subtask 29-11-48-865-055
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5CV, 7CV.
　
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