Advertisement
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
D. General Antenna Removal Instructions
NOTE: These procedures apply to all antennas. To prevent damage to the
antennas, do not apply pressure to the plastic housings or pry on plastic
housings.
(1) Pull the appropriate circuit breakers.
(2) After removing and saving the hardware, cut the bond line of any installer--applied
sealant between the antenna and the aircraft skin.
(3) Pull the antenna away from the aircraft skin far enough to disconnect the cable
connector(s).
4. Procedure for the LRUs
CAUTION: BEFORE AN LRU IS INSTALLED OR REMOVED, PULL THE CIRCUIT
BREAKERS THAT SUPPLY POWER TO THE LRU TO REMOVE POWER.
CAUTION: MOISTURE AND DIRT CAUSE DAMAGE TO LRUs.
CAUTION: LRU FAILURE RATES INCREASE WITH A RISE IN TEMPERATURE. INSTALL
THE LRUs WITH CLEARANCE; LET THE AIR FLOW ON TOP AND BOTTOM
OF LRUS TO PREVENT OVERHEATING.
A. LRU Removal
(1) Remove an LRU as follows:
(a) Disconnect the circuit breakers that supply power to the LRU.
(b) Tag the circuit breakers with DO-NOT-OPERATE identifiers.
(c) Loosen the clamp knobs and let them drop out of the way.
(d) Pull the LRU forward a minimum of 1/2 inch to clear the rear connector pins.
(e) Lift the LRU free of the cooling air-duct gasket on the mounting rack.
B. LRU Installation
(1) Install an LRU as follows:
(a) Determine the location of each LRU in the aircraft.
(b) Check the LRU to be installed and make sure all connector pins are straight and
ready for connection.
(c) Make sure the index pin coding on the rear connector is correct for the mating
connector.
Honeywell International Inc. Do not copy without express permission of Honeywell.
MCS--4200/7200 Multi--Channel SATCOM System
23- -20- -35
Page 7--3
15 Jul 2006
Advertisement
