1) Make sure the PARKING BRAKE ON light goes off and the intermittent horn stops.
(g)
Put the airplane back to its usual condition if no more tests are necessary.
S 865-177
(7) If you did the parking brake test, make sure of the conditions that follow before you continue.
(a)
Make sure you install chocks on the landing gear wheels.
(b)
Disengage the parking brakes.
(c)
Make sure this circuit breaker is closed:
1) On the P6 panel: a) LANDING GEAR FAIL WARN AND PARKING BRAKE
(d)
Make sure the PARKING BRAKE ON light is OFF.
F. Put the Airplane Back to its Usual Condition.
S 865-147
(1)
Put the speed brakes, stabilizer, flaps, thrust levers, and circuit breakers back to their usual positions.
S 865-149
(2)
On airplanes with the parking brake warning, make sure to engage the parking brakes if it is necessary.
S 085-150
(3)
Remove the hydraulic power, if it is not necessary (AMM 29-15-00/202 and AMM 27-51-00/201).
(4)
Remove electrical power, if it is not necessary (AMM 24-22-00/201).
S 865-151
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31-26-00
ALL ú ú 10 Page 548 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
THRUST LEVER ACTUATED LANDING WARNING SWITCHES - REMOVAL/INSTALLATION
_____________________________________________________________________
1. General_______
A. This procedure has two tasks. The tasks are a removal and an installation of the landing warning switches that are operated by the thrust levers (S139 and S140). The removal and the installation procedures are the same for each switch.
B. The switches are installed on the installation supports of the autothrottle servo. These supports are found in the ceiling of the electronic equipment compartment.
TASK 31-26-11-004-019
2. Thrust Lever Actuated Landing Warning Switch Removal____________________________________________________
A. Access
(1) Location Zone
205 Electronics Compartment
B. Procedure
S 864-002
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Load Control Center - Right 1) LANDING GEAR LIGHTS 2) ANTI-SKID FAIL WARN & PARK BRAKE
S 024-003
(2)
Remove the switch (Fig. 401):
(a)
Disconnect the electrical wires from the switch.
(b)
Remove the bolts that attach the switch to the installation support.
(c)
Remove the switch from the support.
(3)
Remove the switch actuator from the switch.
S 034-016
TASK 31-26-11-404-018
3. Thrust Lever Actuated Landing Warning Switch Installation_________________________________________________________
A. Equipment and Materials
(1) Ohmmeter
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITHOUT THE THRUST REVERSER ú
31-26-11
SYNC-LOCK ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 401Nov 15/92
A
737-300/400/500MAINTENANCE MANUAL
THRUST LEVER ACTUATED LANDING WARNING SWITCHES, S139 AND S140
SEE A
STA 360
S139 SEE B
S140
THRUST LEVER
NO. 1 CABLES
ACTUATOR ASSEMBLY
FWD
THRUST LEVER NO. 2 CABLES POTENTIOMETER ASSEMBLY
THRUST LEVER ACTUATED LANDING WARNING SWITCHES, S139 AND S140 A
Thrust Lever Actuated Landing Warning Switch Installation Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITHOUT THE THRUST REVERSER ú
