ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-N / C406-N HM
Page 29 of 88
C.
Coax Cable and Wiring Connections Inspection – Item 1
1)
Check remote switch harness connector for corrosion bent or broken pins and other damage.
2)
Check antenna coax cable BNC connectors for corrosion, bent or broken center conductor, and other
damage.
NOTE:
Pay special attention to the center conductor, which is prone to retracting into the
connector housing.
3)
Check aircraft navigation system interface wiring connections for damage and deterioration.
D.
ELT Mounting Tray and Hardware Inspection – Item 2
1)
Inspect mounting tray for cleanliness, cracks, and other damage.
2)
Check mounting tray hardware for corrosion and security.
E.
Battery Pack Inspection – Item 3
CAUTION:
THE BATTERY PACK CONTAINS ELECTROSTATIC DISCHARGE SENSITIVE
(ESD) COMPONENTS AND, AS SUCH, IT MUST BE HANDLED WITH CARE. IF
POSSIBLE, WEAR A GROUNDED WRIST STRAP WHEN HANDLING THE
BATTERY PACK DURING INSPECTION AND MAINTENANCE ACTIVITIES.
TAKE PARTICULAR CARE TO AVOID TOUCHING THE EXPOSED CIRCUIT
BOARD AND CONNECTOR PINS ON THE BOARD.
CAUTION:
DO NOT USE CONTACT CLEANER ON ELT COMPONENTS. SUCH CHEMICAL
AGENTS CAN BE HIGHLY DESTRUCTIVE TO THE MOUNTING HARDWARE
AND ELT HOUSING, CAUSING CRACKING, FRACTURING AND OTHER
DAMAGE.
1)
Check battery cells, components, and connectors for corrosion and other damage.
2)
Check wiring for breaks, damaged insulation, and improper or damaged connections.
3)
Check housing for cracks and other visual damage.
4)
Remove any corrosion residue from the underside of the ELT.
5)
Check the battery pack expiration date.
6)
Replace the battery pack if any of the following conditions are true:
a)
After use in an emergency
b)
After an inadvertent activation of unknown duration
c)
When the total of all known transmissions exceeds one hour
d)
On or before battery replacement (expiration) date.
F.
G-Switch Functional Check – Item 4
CAUTION:
A JUMPER IS REQUIRED TO PERFORM THIS CHECK. DUE TO THE POTENTIAL OF
PHYSICAL DAMAGE, IF THE JUMPER IS IMPROPERLY INSTALLED, THIS STEP SHOULD
ONLY BE PERFORMED BY AN EXPERIENCED TECHNICIAN/MECHANIC.
1)
Reinstall the battery per instructions on page 62.
NOTE:
If tests 5a through 5h are going to be performed, the battery may be temporarily
installed with only two screws, located on a diagonal from each other.