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COBHAM B406-4
ACR Electronics COBHAM B406-4 Manuals
Manuals and User Guides for ACR Electronics COBHAM B406-4. We have
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ACR Electronics COBHAM B406-4 manual available for free PDF download: Abbreviated Component Maintenance Manual
ACR Electronics COBHAM B406-4 Abbreviated Component Maintenance Manual (86 pages)
EMERGENCY LOCATOR TRANSMITTER
Brand:
ACR Electronics
| Category:
Transmitter
| Size: 2.58 MB
Table of Contents
Record of Revisions
3
Service Bulletin List
5
List of Effective Pages
7
Table of Contents
9
List of Figures
13
Introduction
15
Manual Usage
15
General
15
Application
15
Illustrated Parts List
15
Model Description
17
B406-4
17
Approvals
18
B406-4
18
Battery
18
RTCA DO-160D Compliance
18
Table 1. Environmental Categories Breakdown
19
Frequency Allocations
20
Application
20
Discussion
20
List of Acronyms, Abbreviations, and Definitions
21
References
24
Regulatory Documents
24
Other Documents
25
Description and Operation
27
Description
27
Functional Overview
27
Components
28
Figure 1. B406-4 ELT and Mounting Frame Assembly
28
Figure 2. Remote Switch Panel Assembly Front View
29
Figure 3. Buzzer
29
Figure 4. Battery Pack Assembly
29
Figure 5. Antennas
30
Operation
31
Operational Overview
31
Figure 6. ELT Operational Flow Diagram
31
Normal Operation
32
Manual Activation
32
ELT Reset
32
Functional Check
32
Specifications
33
Environmental and Physical
33
Table 2. Environmental and Physical Specifications
33
Electrical
34
Antennas
35
Table 4. Antenna Specifications
35
Test and Fault Isolation
37
Inspection and Test Regulatory Requirements
37
United States
37
Canada
37
Other Countries
38
Inspection and Test Procedures
39
Table 5. ELT Inspection and Test Checklist
39
Checklist
39
Preparation
40
Coax Cables and Wiring Connections Inspection - Item 1
40
Mounting Tray and Hardware Inspection - Item 2
40
Battery Pack Inspection - Item 3
40
G-Switch Functional Check - Item 4
41
Performance Testing Setup
41
121.5 Mhz Frequency Measurement - Item 5A
42
Audio Modulation Check - Item 5B
42
Figure 7. Performance Testing Equipment Setup
42
121.5/243.0 Mhz Power Output Measurement - Item 5C
43
406 Mhz Frequency Measurement - Item 5D
43
406 Mhz Power Output Measurement - Item 5E
43
Current Draw Test - Item 5F
44
Figure 8. Current Draw Test Setup
44
Digital Message Verification - Item 5G
45
Figure 9. Short and Long 406 Mhz Message Examples
45
ELT Reset Check - Item 5H
46
Installed Transmitter Test - Item 6
46
Antenna Test - Item 7
47
Inspection and Test Documentation - Item 8
47
Troubleshooting
48
Table 6. ELT Self-Test Error Codes Troubleshooting Guide
48
Self-Test Error Troubleshooting Guidelines
48
ELT Troubleshooting Guidelines
50
Table 7. ELT Troubleshooting Guide
50
Removal
51
Elt
51
ELT Removal
51
Figure 10. ELT Removal Sequence
51
Battery
52
Battery Pack Removal
52
Figure 11. Battery Pack Removal
52
Material or Equipment Return
53
Shipment Information
53
Return Material Authorization
53
Regulatory Requirements and Guidelines
55
TSO C126, Paragraph D
55
Faa
55
Canada
55
Other Countries
55
Rtca
56
Mounting Tray
57
Location
57
Figure 12. B406-4 ELT Outline and Dimensions
57
Installation
58
Figure 13. Typical Mounting Tray Installation
58
Antenna
60
Selection
60
Location
60
Installation
60
Figure 14. Rod Antenna 110-320 and Blade Antenna 110-328-01 Outlines and Dimensions
61
Figure 15. Blade Antennas 110-333 and 110-337 Outlines and Dimensions
62
Remote Switch Panel
63
Location
63
Installation
63
Figure 16. Remote Switch Panel Assembly Outline and Dimensions
63
Buzzer
64
Location
64
Installation
64
Figure 17. Buzzer Outline and Dimensions
64
Wiring
65
General Considerations and Recommendations
65
Remote Switch Panel Harness Fabrication and Installation
65
Figure 18. Remote Switch Panel Harness Wiring Diagram
66
Buzzer Wiring Fabrication
68
ELT 12-Pin Receptacle Wiring Fabrication and Installation
68
Figure 19. Remote Switch Panel Harness Wiring at ELT End
69
Coax Cables Installation
70
Antenna Connections
70
Airframe Ground Connections
70
Buzzer Connections
70
Remote Switch Panel Final Installation
70
ELT Installation
71
Installation and Test
71
Figure 20. ELT Installation Sequence
71
Harness ELT Receptacle Sealing
72
Installation Documentation
73
Battery Pack Installation
74
Battery Reinstallation
74
Figure 21. Battery Pack Installation
74
Figure 22. Battery Pack Retaining Screw Tightening Pattern
75
New Battery Installation
76
Appendix A - Elt Registration
77
Background Information
77
Hex ID Code
77
Reason for Registration
77
Registration Information Resources
77
Registration
78
Responsibility
78
Required Information
78
Where to Register
78
Illustrated Parts List
79
Introduction
79
Purpose
79
IPL Usage Guide
79
Manufacturer Name and Address
80
Ordering Information
80
Explanation of Detailed Parts List Entries
81
Fig # & Item Column
81
Part # Column
81
Nomenclature Column
81
UPA (Units Per Assembly) Column
82
Detailed Parts List
83
Figure 23. B406-4 ELT Main Assembly and Installation
83
Figure 24. Electrical Components
85
Figure 25. Antennas
86
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