control wheel. 3) Disconnect the electrical cable from the wire guide.
(b)
Install the insulator between the switch and the interphone switch wires.
(c)
Install the switch and the guard assembly in the control wheel: 1) Pull the electrical cable through the control wheel until the switch and the guard assembly are in the control wheel. 2) Install the pan head screws. a) Tighten the screws to 4 |1/2 pound-inches.
3) Make sure there is a minimum of 0.002-inch clearance between the control wheel handle and the switch.
(d)
Install the switch wires to the terminal block: 1) Remove the insulation. 2) Install the terminals on the wires (See Fig. 401 for color
code identification of wires for terminal matching). 3) Install the terminals on the terminal block. 4) Attach the switch wires to the terminal block.
S 864-006
(3)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6-2 Circuit Breaker Panel
1) STABILIZER TRIM CONT
S 714-005
(4) Do this task: "Operational Test - Stabilizer Trim Control Switch" (AMM 27-41-97/501).
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27-41-97
ALL ú ú 01 Page 403 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 414-004
(5) Replace the terminal block cover.
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27-41-97
ALL ú ú 01 Page 404 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
STABILIZER TRIM CONTROL SWITCH - ADJUSTMENT/TEST
________________________________________________
1. General
_______
A. This procedure has one task. The task is an operational test of the stabilizer trim control switch.
TASK 27-41-97-705-013
2. Operational Test - Stabilizer Trim Control Switch
_________________________________________________
A. Standard Tools and Equipment
(1)
Insulation tester
B.
References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 31-24-22/401, Flight Data Acquisition Unit
C.
Access
(1)
Location Zone
101 Control Cabin, LH
102 Control Cabin, RH
D.
Procedure
S 865-012
(1)
Move the control wheel through full travel five times.
S 865-001
(2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6-2 Circuit Breaker Panel
1) STABILIZER TRIM ACTUATOR
2) STABILIZER TRIM CONT
S 035-002
(3)
Disconnect the electrical connector D3124 from the column actuated cutout switch M1201.
S 865-007
(4)
Move the stabilizer trim cutout switch S272 to CUTOUT.
S 025-014
(5)
Remove the digital flight data acquisition unit (DFDAU) (AMM 31-24-22/401).
S 225-008
(6)
Do a check of all wires and switch for the electrical insulation between the wire and ground, and between these wires:
(a)
VIOLET wire to RED wire
(b)
VIOLET wire to ORANGE wire
(c)
VIOLET wire to BLACK-ORANGE wire
(d)
RED wire to BLACK-ORANGE wire
(e)
RED wire to ORANGE wire
(f)
BLACK-ORANGE wire to ORANGE wire.
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