(d)
R1B - P/N B20003-26
B.
References
(1)
AMM 06-41-00/201, Access Doors and Panels
(2)
AMM 20-10-24/201, Rig Pins
(3)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(4)
AMM 32-00-20/201, Landing Gear Downlocks
C.
Access
(1)
Location Zones
211/212 Control Cabin
113/114 Area forward of NLG wheel well
821 Forward Cargo Compartment
(2)
Access Panel 113AL Flight/Landing Gear/Engine Control Components
D.
Prepare for Removal
S 494-002
(1)
Make sure that the landing gear downlocks are installed (AMM 32-00-20/201).
(2)
Put chocks on the wheels.
S 494-003
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LGB4B
LGB4A
TURNBUCKLE
(2 LOCATIONS)
LGB2B SEE A
LGB2A FIRST OFFICER'S RUDDER PEDALS (REF)
FORWARD ACCESS TURNBUCKLEDOOR SEE A (2 LOCATIONS)(113AL) CAPTAIN'SR1B R1A
RIG RUDDER PEDALS (REF)
R1G PIN PIN
BRAKE/RUDDER
PEDAL HOUSING
BRAKE/RUDDER PEDAL HOUSING
UPPER
LGB4B B
BEARING
HOUSING
LGB4A
UPPER
B
BEARING BRAKE BUS
HOUSING BELLCRANKINPUT ROD ACCESS
A
ATTACH BOLT COVER
(2 LOCATIONS)
LGB2B BRAKE BUS LGB1
RODS RIG PIN BELLCRANK HOLE A LGB2A
BRAKE BUS INPUT ROD ATTACH BOLTS (2 LOCATIONS)
BRAKE BUS ROD ATTACH BOLT (2 LOCATIONS, LOWER BEARING EACH BUS ROD) HOUSING
A
(SEE A-A)
Brake Pedal Bus Mechanism Installation
Figure 401 (Sheet 1)
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BRAKE BUS ROD
BRAKE BUS ROD
Brake Pedal Bus Mechanism Installation
Figure 401 (Sheet 2)
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S 864-004
(3)
Release the parking brake and attach a DO-NOT-OPERATE tag to the parking brake handle.
S 864-005
(4)
Remove the pressure from the right and left hydraulic systems and reservoirs (AMM 29-11-00/201).
S 864-006
(5)
Push in the two captain's pedals fully seven times to remove hydraulic pressure from the accumulator.
NOTE: Stop five seconds or more between each time that you apply
____
the brake.
S 014-007
(6)
Get access to the brake-pedal bus mechanism through the forward access door 113AL (AMM 06-41-00/201).
S 014-008
(7)
Remove the access covers from the aft and bottom sides of the rudder pedal housing in the forward equipment bay.
S 484-009
(8)
Put the two rudder pedals in the neutral position and install rig pin(s) R1A or R1B as necessary (Fig. 401).
S 484-010
(9)
Install hydraulic brake system rig pin(s) LGB1 or LGB2 to keep the brake pedals in the OFF position.
NOTE: Make sure that the rig pin is installed through the
____ two pedal arms and the two sides of the pedal support housing.
E. Procedure to Remove the Brake-Pedal Bus Mechanism
S 034-048
(1) If you will remove the Captain's bus mechanism, loosen the
turnbuckles on cables LGB2A and LGB2B.
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S 034-037
(2)
If you will remove the First Officer's bus mechanism, loosen the turnbuckles on cables LGB4A and LGB4B.
S 034-036
(3)
Disconnect the cables from the quadrants, and attach identification tags to the cables.
S 024-039
(4)
Disconnect the two pushrods and the two bus rods from the bus cranks on the brake bus mechanism (Detail A and Section A-A or Section B-B).
S 024-013
(5)
Remove the bolts (four locations) that attach the top bearing housing to the brake/rudder pedal housing.
S 024-014
(6)
Remove the bolts (three locations) that attach the lower bearing housing to the rudder pedal housing while you hold the bus mechanism.
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