B.
Access
(1)
Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
205 Electrical Compartment
217 Right Main Wheel Well
C.
Antiskid Valve and Brake Function Test
(1)
Pressurize the A and B hydraulic systems (AMM 29-15-00/201).
(2)
Make sure the wheel chocks are in position.
S 845-046
S 845-089
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A
737-300/400/500MAINTENANCE MANUAL
S 845-090
(3)
Release the parking brake.
S 845-047
(4)
Open the ANTISKID FAIL WARN circuit breaker on the P6 panel.
S 845-048
(5)
Remove the electrical connector D928 from the shutoff valve of the parking brake.
S 845-049
(6)
Close the ANTISKID FAIL WARN circuit breaker on the P6 panel.
S 845-050
(7)
Set the parking brake.
S 725-051
(8)
Do the skid response test.
(a)
Put the selector switch on the anti-skid module to the LO and the RO position and do the steps that follow for each switch position: 1) Push and release the SKID and the LW buttons. 2) Make sure the outboard brakes momentarily release.
(b)
Put the selector switch to the RI and the LI positions and do the steps that follow at each position: 1) Push and release the SKID and the LW buttons. 2) Make sure the inboard brakes momentarily release.
S 725-052
(9)
Do the test for the Locked wheel response.
(a)
Put the selector switch to the LO position. 1) Push and hold the VALVE and the LW buttons. 2) Make sure the right green LED comes on and the left
outboard brakes release.
(b)
Put the selector switch to the LI position. 1) Push and hold the VALVE and the LW buttons. 2) Make sure the right green LED comes on and the left inboard
brakes release.
(c)
Put the selector switch to the RI position. 1) Push and hold the VALVE and the LW buttons. 2) Make sure the right green LED comes on and the right
inboard brakes release.
(d)
Put the selector switch to the RO position. 1) Push and hold the VALVE and the LW buttons. 2) Make sure the right green LED comes on and the right
outboard brakes release.
D. Alternate Anti-Skid Valve and Brake Function Test
S 845-053
(1) Remove the pressure from hydraulic system B (AMM 29-15-00/201).
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A 737-300/400/500MAINTENANCE MANUAL
S 725-054
(2)
Put the selector switch to the L ALT position.
(a)
Push and release the VALVE and the SKID buttons.
(b)
Make sure the two left brakes momentarily release.
S 725-055
(3)
Put the selector switch to the R ALT position.
(a)
Push and release the VALVE and the SKID buttons.
(b)
Make sure the two right brakes momentarily release.
E.
Put the Shutoff Valve of the Parking Brake to its Usual Condition
S 845-056
(1)
Open the ANTISKID FAIL WARN circuit breaker on the P6 panel.
S 845-057
(2)
Connect the connector D928 to the shutoff valve of the parking brake.
S 845-094
(3)
Close the ANTISKID FAIL WARN circuit breaker on the P6 panel.
F.
Parking Brake Function Test
S 725-059
(1)
Put the selector switch to the PB position.
S 725-060
(2)
Push the VALVE button.
S 725-061
(3)
Make sure the center green LED comes on.
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