S 494-002
 (1)  Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
 S 944-008
 WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).

 S 864-003

 (3)  
Remove the pressure from the left and right hydraulic systems reservoirs (AMM 29-11-00/201).

 (4)  
Supply electrical power (AMM 24-22-00/201).

 S 864-005

 (5)  
Make sure this circuit breaker on the main power distribution panel, P6, is closed:

 (a)  
6F4, LANDING GEAR PARKING BRAKE VLV

 S 864-004
 

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SEEA
PLUG ELECTRICAL 
MOTOR  HYDRAULIC LINE (REF) 
VALVE 
LEVER INDICATOR POSITION NUT 
REDUCER PORT B 
(3 LOCATIONS) ATTACH BOLTS 
HYDRAULIC LINE (REF)  NUT  A  REDUCER PORT A 
Figure 401 Parking Brake Valve/Motor Installation 

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 S 944-006
 CAUTION:_______DO NOT MOVE THE HANDLE FOR THE PARKING BRAKE. IF YOU PUSH OR TWIST THE HANDLE, YOU CAN CAUSE DAMAGE TO THE HANDLE LINKAGE.
 (6)  
Push the two brake pedals fully down then release them to release the parking brakes.

 S 844-007

 (7)  
Do the step that follows to make sure the parking brake valve is open.

 (a)  
Look to see that the PARK BRAKE indication light on the quadrant control stand panel, P10, is off.

 S 864-009
 (8)  
Open this circuit breaker on the main distribution panel, P6, and attach a DO-NOT-CLOSE tag:

 (a)  
6F4, LANDING GEAR PARKING BRAKE VLV

 S 864-010
 (9)  
Push and release the brake pedals fully a minimum of seven times to remove the pressure from the parking brake accumulator.

 S 844-011

 (10)
 Look at the parking brake valve to make sure the valve lever is in the open position (position 1).

 S 034-012

 (11)
 Disconnect the electrical connector from the parking brake valve.

 (12)
 Put a cap on the plug and receptacle.

 (13)
 Disconnect the two hydraulic lines from the valve.

 S 034-013
 S 034-014
 

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 S 034-040
 (14)
 Remove the hydraulic fittings from the valve.

 S 844-018

 (15)
 Discard the O-rings from the reducers.

 S 034-015

 (16)
 Put a cap on the lines and put a plug in the openings.

 S 034-016

 (17)
 Remove the three bolts.

 S 024-017

 (18)
 Remove the parking brake valve and motor.

 TASK 32-44-03-404-019
 3.  Install the Parking Brake Valve (Fig. 401)_______________________________
 A. Equipment
 (1)  
Main Gear Door Locks - (AMM 32-00-15/201)

 B.
Consumable Materials

 (1)  
D00153 Fluid-Hydraulic - BMS 3-11

 (2)  
D00054 Lubricant - Hydraulic System Fittings
 MCS 352

 (3)  
B00138 Aluminum Oxide Abrasive Cloth - P-C-451

 (4)  
Sealant - DC 4

 C.
References

 (1)  
AMM 24-22-00/201, Electrical Power - Control

 (2)  
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (3)  
AMM 32-00-15/201, Landing Gear Door Locks

 D.
Access

 (1)  
Location Zones
 144 Right Main Landing Gear Wheel Well
 211/212 Control Cabin
 710 Nose Landing Gear and Doors
 730/740 Main Landing Gear and Doors

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 E. Install the Parking Brake Valve
 S 644-021
 (1)  
　
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