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 b) Make sure that the brake pairs shown in column B release for five seconds and then apply again. c) Make sure that the unit message display is as shown in
 Table 1 while the brake releases and applies. 6) Release the parking brake. 7) Remove the DO-NOT-CLOSE tag and close this circuit breaker
 on the P6 panel:
 a) 6F4, LANDING GEAR PARKING BRAKE VLV 8) Put the BRAKE TEST rotary switch in the NORM position. 9) Remove the pressure from the left hydraulic system
 (AMM 29-11-00/201). 10) Put the L, R and C IRU's in the OFF position.
 S 944-024
 (11) Do the steps in the Return the Airplane to Its Usual Condition paragraph if more maintenance is not necessary.
 

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757 MAINTENANCE MANUAL
 TASK 32-42-03-004-025
 5. Antiskid Module Hydraulic Fuse - Removal (Fig. 401)
________________________________________
 A. Procedure
 S 944-026
 (1)  
Do the Prepare for Removal procedure (Ref Par. 2)

 S 034-027

 (2)  
Disconnect the hydraulic line (23 or 38) from the fuse (22 or 37) and put a cap on the hydraulic line. Remove the hydraulic fitting from the fuse and discard the O-ring.

 S 024-028
 CAUTION: DO NOT LET DIRT OR OTHER UNWANTED MATERIAL GET INTO THE
_______ PORTS OF THE FUSE. IF THIS OCCURS, THE SYSTEM CAN MALFUNCTION.
 (3)  
Remove the bolts (3 or 25) and pull the fuse from the module (17 or 34). Put a plug in the port.

 S 034-029

 (4)  
Remove the retainers (20 or 35) and the O-ring (21 or 36) from the fuse (22 or 37). Discard the O-ring.

 TASK 32-42-03-424-030
 6. Antiskid Module Hydraulic Fuse - Installation (Fig. 401)
_____________________________________________
 A. Consumable Materials
 (1)  D00153 Hydraulic Fluid - BMS 3-11
 B. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT |FIG | ITEM | ................................................................................ | 401 | 20 | Retainer | 32-42-02 | 01 | 175 | | | 21 | Packing (O-Ring) | | | 170 | | | 22 | Valve Assy - Self Resetting Fuse | | | 160 | | | 35 | Retainer | 32-42-02 | 02 | 87 | | | 36 | Packing (O-Ring) | | | 86 | | | 37 | Valve Assy - Self Resetting Fuse | | | 80 | 2......…........…...................................…...........…....….........1
 C. References
 (1)
29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 D.
Access

 (1)  
Location Zones
 143 Left Main Landing Gear Wheel Well
 144 Right Main Landing Gear Wheel Well

 E.
Procedure

 

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757 MAINTENANCE MANUAL
 S 434-031 CAUTION: DO NOT LET DIRT OR OTHER UNWANTED MATERIAL GET IN THE PORTS
_______ OF THE FUSE. THIS CAN CAUSE THE MALFUNCTION OF THE UNIT.
 (1)  Lightly lubricate a new O-ring with hydraulic fluid. Install the hydraulic fitting with the new O-ring in the fuse (22 or 37).
 (2)  S 424-032Install the fuse with a new O-ring (21 or 36) and retainers (20 or 35) in the module. Lubricate the O-ring and the retainers with hydraulic fluid before you install them.
 (3)  S 424-033Install the bolts (3 or 25) and tighten to a torque value of 100-110 pound-inches. Install lockwire.
 (4)  S 424-034Connect the hydraulic line (23 or 38) to the fuse (22 or 37).
 (5)  S 864-035For the normal antiskid module, pressurize the right system hydraulic system and reservoir (AMM 29-11-00/201).
 (6)  S 864-036For the alternate antiskid module, pressurize the left hydraulic system and reservoir (AMM 29-11-00/201).
 (7)  S 864-037Push in the brake pedals fully four or more times.
 (8)  S 794-038After five minutes, look at the fuse installation to make sure that there are no hydraulic leaks.
 (9)  S 714-113Do a check of the operation of the brake that gets hydraulic pressure through the hydraulic line with the fuse that you replaced as follows: (a) Push in the brake pedals and make sure that the brake operates.
 NOTE:____ Look to see that the brake wear pin moves when you push in the brake pedal to make sure that the brake operates.

 S 944-040
 (10) Do the Return the Airplane to Its Usual Condition paragraph if it is not necessary to do more maintenance.
　
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