(m)
 Install the union (22) in port B of the manifold (1).

 (n)
 TORQUE the union (22) to between 3.19 and 3.47 m.daN (23.52 and

 25.58 lbf.ft).

 (o)
 Put the O-ring (5) in position on the union (4).

 (p)
 Install the union (4) in port C of the manifold (1).

 (q)
 TORQUE the union (4) to between 1.76 and 1.88 m.daN (12.97 and

 13.86 lbf.ft).

 (r)
 Put the O-ring (9) in position on the union (8).

 (s)
 Install the union (8) in port D of the manifold (1).

 (t)
 TORQUE the union (8) to between 3.19 and 3.47 m.daN (23.52 and

 25.58 lbf.ft).

 (u)
 Put the O-ring (13) in position on the union (12).

 (v)
 Install the union (12) in port E of the manifold (1).

 (w)
 TORQUE the union (12) to between 1.76 and 1.88 m.daN (12.97 and

 13.86 lbf.ft).

 Subtask 29-19-41-910-052
 B. Preparation for the Installation
 (1) Remove the sealant from the mating surface of the manifold (1) and
 the aircraft structure with a plastic or wooden scraper.
 (2) Examine the structure of the aircraft in the area of the manifold
 attachment for cracks, corrosion or other damage.
 (3) Apply a layer of SEALANTS (Material No. 09-018) to the mating surface
 of the manifold (1). 
R  Subtask 29-19-41-420-052-A 
R  C. Installation of the Ground Leakage-Measurement Manifold (3146GM) 
R  (Ref. Fig. 404/TASK 29-19-41-991-004) 
R  CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN_______ 
R  YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE 
R  THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO 
R  MUCH. 
R  CAUTION : YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS_______ 
R  LUBRICANT. 
R  (1) Put the manifold (12) in position on the aircraft and install the 
R  bolts (4) and the washers (5). Do not tighten the bolts (4). 
R  (2) Remove the blanking plugs from the pipe end-fittings and the unions 
R  on the manifold (12). 
R  (3) Make sure that the hydraulic line end-fittings are serviceable. 
R  (4) Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the threads of 
R  the line end-fittings. 
R  (5) Connect the pipe (9) to the union (11). 
R  (6) TORQUE the pipe end-fitting (10) to between 5.4 and 5.9 m.daN (39.82 
R  and 43.51 lbf.ft). 
R  (7) Connect the pipe (8) to the union (6). 
R  (8) TORQUE the pipe end-fitting (7) to between 7.5 and 8.3 m.daN (55.30 
R  and 61.20 lbf.ft).

R Ground Leakage-Measurement Manifold - Yellow Hydraulic System (3146GM) R Figure 404/TASK 29-19-41-991-004
 1EFF : ALL 1 29-19-41Page 432 1 1 Nov 01/04 1 1 1CES 1

R  (9) Connect the pipe (16) to the union (18). 
R R  (10) TORQUE the pipe end-fitting (17) to between 5.4 and 5.9 m.daN (39.82 and 43.51 lbf.ft). 
R  (11) Connect the pipe (1) to the union (3). 
R R  (12) TORQUE the pipe end-fitting (2) to between 2.9 and 3.2 m.daN (21.38 and 23.59 lbf.ft). 
R  (13) Connect the pipe (15) to the union (13). 
R R  (14) TORQUE the pipe end-fitting (14) to between 2.9 and 3.2 m.daN (21.38 and 23.59 lbf.ft). 
R  (15) Tighten the bolts (4).
 Subtask 29-19-41-865-058
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1881GP, 3801GX, 3802GX, 3803GX
 Subtask 29-19-41-860-059
 E. Preparation for the Test
 (1) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-002).
 (2) Pressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-002).
 (3) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 (4) Make sure that the fluid level in the reservoir of the Yellow hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).
 (5) Pressurize the Yellow hydraulic system (Ref. TASK 29-10-00-863-002).
 (6) On the maintenance panel 50VU, make sure that the HYD/LEAK MEASUREMENT VALVES/Y pushbutton switch is set to on (OFF light is not on).

 Subtask 29-19-41-710-052-A
 F. Test
 (1)
 Make sure there are no leaks from any of the connections or from the manifold.
　
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