(2)
This task contains these procedures:
(a)
Prepare for the System Test
(b)
ILS Antenna Transfer Relay Test
(c)
VOR Test
(d)
LOC Test
(e)
Glide Slope Test.
B. Standard Tools and Equipment
(1) VOR/ILS Ramp Test Set - 972Q-4; Collins, Cedar Rapid, Iowa, or NAV-401L; Instrument & Flight Research Inc, Witchita, KS.
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737-300/400/500MAINTENANCE MANUAL
C. References
(1)
AMM 22-11-00/501, Digital Flight Control System
(2)
AMM 23-51-00/501, Flight Interphone System
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 34-28-00/501, Inertial Reference System
D. Access
(1) Location Zone
101,102 Control Cabin
E. Prepare for the System Test
S 865-049
(1) Do the prepare for the system test:
(a)
Supply electrical power (AMM 24-22-00/201).
(b)
Make sure these systems are serviceable: 1) The digital flight control system (AMM 22-11-00/501). 2) The flight interphone system (AMM 23-51-00/501). 3) The inertial reference system (AMM 34-28-00/501).
(c)
Close these circuit breakers:
1) P18 Load Control Center - Left
a) VOR/LOC-1
2) P6 Load Control Center - Right
a) VOR/LOC-2
(d)
Set the controls on the DFCS mode select panel as follows:
1) Course counter - Airplane heading that shows on the compass rose. a) Make sure the course arrows on the two HSIs agree with
the course counter.
2) HDG SEL switch - ON
3) Autopilot - disengaged
(e) Set the left inertial reference system (IRS) and the right IRS to a heading of 000° (AMM 34-28-00/501). 1) Make sure the HDG flags on the two RDDMIs are out of view. 2) Make sure the compass cards for the two RDDMIs read 000°.
NOTE: The pointers for the two RDDMIs must agree.
____
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737-300/400/500MAINTENANCE MANUAL
(f)
Set the VOR/ADF switches on the two RDDMIs to VOR.
1) Make sure the VOR pointer annunciators show on the two RDDMIs.
(g)
Set these transfer switches as follows:
1) ATTITUDE transfer switch - NORMAL
2) COMPASS transfer switch - NORMAL
3) VHF NAV transfer switch - NORMAL
a) Make sure the system annunciator on the captain's HSI shows 1. b) Make sure the system annunciator on the first officer's HSI shows 2. 4) HSI transfer switches - VOR/ILS. a) Make sure the navigation source annunciators on the two HSIs show VOR/ILS.
(h)
Put the ramp test set approximately 75 feet (unobstructed) from the side of the airplane fin.
(i)
Set up the ramp test set to supply a 0° radial signal with a 1020Hz modulation at a frequency of 108.00 MHz.
NOTE: When using Instrument Flight Research NAV-401L test set,
____ the "to/from" switch must be in the "from" position.
F. ILS Antenna Transfer Relay Test
S 735-035
(1) Do the ILS antenna transfer relay test:
(a)
Do the prepare for the system test.
(b)
Set the VHF NAV transfer switch to the NORMAL position.
(c)
Open this circuit breaker:
1) P6 Load Control Center - Right
a) VOR/LOC-2
(d)
Set a frequency of 108.00 MHz on the No. 1 VHF NAV control panel. 1) Make sure the navigation warning flag on the captain's HSI
is in view.
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本文链接地址：737-300 400 500 AMM 飞机维护手册 导航 NAVIGATION 2(143)
