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ACR Electronics C406-1 SERIES manual available for free PDF download: Abbreviated Component Maintenance Manual
ACR Electronics C406-1 SERIES Abbreviated Component Maintenance Manual (90 pages)
EMERGENCY LOCATOR TRANSMITTER
Brand:
ACR Electronics
| Category:
Transmitter
| Size: 3.02 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 Descriptions
17
C406-1
17
C406-1Hm
17
Figure 1. ELT Orthogonal Axes
17
Approvals
18
C406-1 and C406-1HM
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 2. C406-1 Series ELT and Mounting Frame Assembly
28
Figure 3. Cockpit Remote Switch
29
Figure 4. Buzzer
29
Figure 5. Battery Pack Assembly
29
Figure 6. Rod and Whip Antennas
30
Figure 7. Blade Antennas
30
Operation
31
Operational Overview
31
Figure 8. 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 Cable 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 9. Performance Tests 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 10. Current Draw Test Setup
44
Digital Message Verification - Item 5G
45
Figure 11. 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
Fault Isolation
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 12. ELT Removal Sequence
51
Battery
52
Battery Pack Removal
52
Figure 13. 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 14. C406-1 Series ELT Outline and Dimensions
57
Installation
58
Figure 15. Typical Mounting Tray Installation
58
Antenna
60
Selection
60
Location
60
Installation
60
Figure 16. Rod Antenna 110-338 and Whip Antenna 110-343 Outlines and Dimensions
61
Figure 17. Blade Antennas 110-340 and 110-341 Outlines and Dimensions
62
Remote Switch
63
Location
63
Installation
63
Figure 18. Remote Switch Outline and Dimensions
63
Buzzer
64
Location
64
Installation
64
Figure 19. Buzzer Outline and Dimensions
64
Wiring
65
General Considerations and Recommendations
65
Remote Switch Harness Fabrication
66
Figure 20. Remote Switch Harness Arrangement
66
Figure 21. Remote Switch Harness Wiring Diagram
67
ELT 12-Pin Receptacle Installation
68
Cockpit Remote Switch 9-Pin Plug Installation
69
Figure 22. Remote Switch Harness Arrangement at ELT End
69
Wiring Installation
70
Antenna Connection
70
Cockpit Remote Switch Power Connection
70
Remote Switch Alternate Power Source
70
Airframe Ground Connections
71
Buzzer Connection
71
Remote Switch Final Installation
71
ELT Installation
72
Installation and Test
72
Figure 23. ELT Installation Sequence
72
Harness ELT Receptacle Sealing
73
Installation Documentation
74
Battery Pack Installation
75
Battery Reinstallation
75
Figure 24. Battery Pack Installation
75
Figure 25. Battery Pack Screw Tightening Pattern
76
New Battery Installation
77
Helicopter Installations - Special Considerations
78
Background
78
Recommendations
78
Figure 26. ELT Orthogonal Axes
78
Orientation
79
Figure 27. Orientation of ELT for Helicopter Installations
79
Appendix A - Elt Registration
81
Background Information
81
Hex ID Code
81
Reason for Registration
81
Registration Information Resources
81
Registration
82
Responsibility
82
Required Information
82
Where to Register
82
Illustrated Parts List
83
Introduction
83
Purpose
83
IPL Usage Guide
83
Manufacturer Name and Address
84
Ordering Information
84
Explanation of Detailed Parts List Entries
85
Fig # & Item Column
85
Part # Column
85
Nomenclature Column
85
UPA (Units Per Assembly) Column
86
Detailed Parts List
87
Figure 28. C406-1 Series ELT Main Assembly and Installation
87
Figure 29. Electrical Components
89
Figure 30. Antennas
90
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