S 034-127

 (19)
 Remove the plugs and the caps and connect the upper hydraulic lines.

 S 434-128

 (20)
 Install the clamps (8) and the hydraulic lines (7) on the main landing gear (Fig. 401).

 S 034-129

 (21)
 Remove the plugs and the caps.

 (22)
 Connect all the lines.

 S 424-131

 (23)
 Install the actuator and the actuator walking beam of the main landing gear (AMM 32-32-11/401).

 S 434-130
 NOTE: If the stabilizing beam of the main landing gear was
____ installed, you can remove it to make the installation of the actuator assembly easier, and install it again after the installation of the actuator assembly.
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737-300/400/500MAINTENANCE MANUAL
 S 434-132
 WARNING:_______ EXAMINE THE ELECTRICAL HARNESS BELOW THE AXLE FOR DAMAGE OR
 REPAIRS DONE BEFORE.  DAMAGED OR SPLICED WIRES CAN CAUSE
 ELECTRICAL SHOCK OR INJURY TO PERSONS.

 (24)
 Install the electrical harness (9), (Fig. 401).

 S 414-134

 (25)
 Install the shock strut doors (AMM 32-13-11/401).

 S 824-135

 (26)
 Adjust the shock strut doors (AMM 32-13-11/401).

 S 644-136

 (27)
 Lubricate the main landing gear (AMM 12-21-11/301).

 S 434-137

 (28)
 If you installed the right main landing gear, connect the interlock valve cable of the ground spoiler (AMM 27-62-51/401).

 S 864-138

 (29)
 Pressurize the hydraulic systems A and B (AMM 29-15-00/201).

 S 714-139

 (30)
 Operate the brake pedals four to six times to bleed the brake.

 S 794-140

 (31)
 Examine the connections of the hydraulic brake line for leakage.

 S 714-141

 (32)
 Examine the operation of the skid detectors of the new main landing gear you installed (AMM 32-42-00/501).

 S 094-143

 (33)
 Remove the ground lock assemblies (AMM 32-00-01/201).

 S 714-144

 (34)
 Do the Operation Test of the APU Fire Detection System (AMM 26-15-00/501).

 S 714-145

 (35)
 Do a retraction test of the main landing gear (AMM 32-32-00/501).

 S 714-146

 (36)
 Do a test of the manual extension system of the main landing gear (AMM 32-34-00/501).

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737-300/400/500MAINTENANCE MANUAL
 S 494-147
 (37)
 Install the ground lock assemblies (AMM 32-00-01/201).

 S 584-148

 (38)
 Lower the airplane to the ground and remove the jacks (AMM 07-11-11/201).

 S 844-149

 (39)
 Set the parking brake.

 S 614-150

 (40)
 Service the shock struts with oil and nitrogen (AMM 12-15-31/301).

 S 424-154

 (41)
 Install the door on the main landing gear shock strut (AMM 32-13-11/401).

 S 414-155

 (42)
 Install the hydraulic access panel (8401 left or 8501 right) on the bottom of the wing.

 S 844-151

 (43)
 If it is not necessary for other work, remove electrical power from the airplane.

 S 844-152

 (44)
 If it is not necessary for other work, remove hydraulic power from the airplane (AMM 29-15-00/201).

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