New Battery Installation - ACR Electronics ME406 Series Abbreviated Component Maintenance Manual

(7) Reset the ELT by toggling the ELT local control switch to "ON" and back to "ARM" after 1-2
seconds, if the ELT activates.
NOTE:
(8) Fit the battery pack into place on the ELT, making sure the gasket is positioned correctly.
(9) Turn the battery pack bottom face up to facilitate installing the screws, while securely holding
the ELT and battery pack together.
(10) Install the eight battery pack retaining screws and tighten until the ELT is snug against the
gasket.
(11) Torque the screws to 10-12 lb-in (113-136 N•cm).
(12) Perform an ELT self-test as follows:
(a) Set the ELT local control switch in the "ON" position. The LED will begin flashing every 3-
4 seconds.
(b) Return the switch to the "ARM" position after 1-2 seconds. If the ELT is working
properly, the LED will stay on for approximately 1 second and then flash the following
expected error codes, which should be ignored.
1
2
3
(c) If a 7-flash error code is indicated, there is a problem with the battery or battery
connection wiring. Refer to Table 6, on page 46.
SUBTASK 25-62-30-450-002
B.

New Battery Installation

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) This subtask applies to installation of a new (i.e., replacement) battery.
(2) Verify the bottom of the ELT is clean and free of battery corrosion residue. Clean as
necessary.
(3) Install the new gasket in the battery pack sealing groove.
(4) Perform Steps (4) through (12) of the procedure outlined in SUBTASK 25-62-30-450-001, on
page 73.
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
This step may be necessary because the ELT will occasionally activate when power is
connected to it in Step 6.
3-flash and 4-flash errors, which are generated because the ELT is not installed
and connected to an antenna, etc.
A 5-flash error will be indicated if the ELT is programed with a location protocol,
and is generated because the ELT is not connected to the navigation system and
receiving position data.
A 6-flash error will indicate the G-Switch loop between pins 5 and 12 on the D-Sub
connector is open or not installed.
25-62-30
Page 74 of 88
APR 06/10