Technical Manual

8-5
Ensuring Radio
Submersibility
Introduction
ASTRO XTS 3000 R radio models meet the stringent requirements of
U. S. MIL-STD-810C, Method 512.1, Procedure I, MIL-STD-810D,
Method 512.2, Procedure I, and MIL-STD-810E, Method 512.3,
Procedure I, which require the radio to maintain watertight integrity
when immersed in three feet of water for two hours @ 27º ∆ T. Radios
shipped from the Motorola factory have passed the water immersion
test and should not be disassembled. If disassembly is necessary, refer
to qualified service personnel and service shops capable of restoring
the watertight integrity of the radio.
It is strongly recommended that maintenance of the radio
be deferred to qualified service personnel and service
shops. This is of paramount importance as irreparable
damage to the radio can result from service by
unauthorized persons. If disassembly is necessary,
unauthorized attempts to repair the radio may void any existing
warranties or extended performance agreements with Motorola. It is
also recommended that submersibility be checked annually by
qualified service personnel.
If the radio is accidentally dropped in water, shake the radio to remove
the excess water from the speaker grille area before operating;
otherwise, the sound may be distorted until the water has evaporated
from this area.
General Information
To ensure that the radio is truly a watertight unit, special testing, test
procedures, and specialized test equipment are required. The special
testing involves a vacuum check of the radio and pressure testing
(troubleshooting) for water leaks if the vacuum check fails. The
specialized test equipment is needed to perform the vacuum check and
pressure testing, if required.
Specialized Test
Equipment
Vacuum Pump Kit,
NLN9839
The vacuum pump kit includes a vacuum pump with gauge, and a
vacuum hose. An adapter with gasket (NTN9279A), which must be
ordered separately, connects the vacuum hose to the radio's casting.
The vacuum pump kit is also used on Motorola ASTRO SABER R radios.
The adapter with gasket is new to the ASTRO XTS 3000 R.
Pressure Pump Kit,
NTN4265
The pressure pump kit includes a pressure pump with gauge, and a
pressure hose; the pressure pump kit is also used on Motorola ASTRO
SABER R radios. As with the vacuum pump kit above, the NTN9279A
adapter connects the pressure hose to the radio's casting.
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C a u t i o n