Disassembly/Assembly
59
Servicing XTS 2500I radios shipped from the Motorola factory have passed vacuum testing
and should be capable of restoring the watertight integrity of the radio.
Accidental
Immersion
If the radio is accidentally dropped in water, shake the radio to remove the excess
water from the speaker grille and microphone port area before operating;
otherwise, the sound may be distorted until the water has evaporated, or is
dislodged from these areas.
Specialized Test
Equipment
This section summarizes the specialized test equipment necessary for testing the
integrity of ASTRO XTS 2500I radios.
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.
Vacuum Pump Kit
NLN9839
The vacuum pump kit includes a vacuum pump with gauge, and a vacuum hose.
An adapter with gasket (NTN9279_), which must be ordered separately, connects
the vacuum hose to the radio’s casting. The vacuum pump kit is also used on
Motorola ASTRO XTS 5000 R radio models. The adapter with gasket is the same
as that for the ASTRO XTS 5000 R radio models.
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 XTS 5000 R radio models.
As with the vacuum pump kit above, the NTN9279_ adaptor connects the pressure
hose to the radio’s casting.
Miscellaneous
Hardware
Other items needed for testing the immersibility radio include:
• Large water container
• Deionized (DI) water
• A supply of replacement seals Main seal O-rings, Battery Seal, and Base Plate
Seal (refer to the ASTRO XTS 2500I exploded view parts list).
Disassembly Disassemble the radio according to Section “Radio Disassembly—Detailed” on
page 46.
It is strongly recommended that the 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 immersibility be checked annually by
qualified service personnel.
C a u t i o n
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