8.10 Ensuring Radio Submergibility - Motorola APX 7000 Basic Service Manual

Disassembly/Reassembly Procedures: Ensuring Radio Submergibility

8.10 Ensuring Radio Submergibility

This section discusses radio submergibility concerns, tests, and disassembly and reassembly of
ASTRO APX 7000 R radios.
8.10.1 Standards
ASTRO APX 7000 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; MIL-STD-810E, Method 512.3,
Procedure I; and MIL-STD-810F, Method 512.4, Procedure I, which require the radio to maintain
watertight integrity when immersed in six (6) feet of water for two hours.
8.10.2 Servicing
APX 7000 R radios shipped from the Motorola factory have passed vacuum testing 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.
8.10.3 Water Exposure
If the radio is exposed to water, shake the radio to remove the excess water from the speaker grille
and microphone ports areas before operating; otherwise, the sound may be distorted until the water
has evaporated, or is dislodged from these areas.
8.10.4 Specialized Test Equipment
This section summarizes the specialized test equipment necessary for testing the integrity of ASTRO
APX 7000 R 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.
8.10.4.1 Vacuum Pump Kit NLN9839_
The Vacuum Pump Kit includes a Vacuum Pump with gauge and a Vacuum Hose. The Vacuum
Adapter (p/n 66009259001) which connects the vacuum pump to the radio, must be ordered
separately.
8.10.4.2 Pressure Pump Kit NTN4265_
The Pressure Pump Kit includes a Pressure Pump with gauge and a Pressure Hose. As with the
Vacuum Pump Kit above, the Vacuum Adapter connects the pressure pump to the radio.
8.10.5 Disassembly
Disassemble the radio according to
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 submergibility be
checked annually by qualified service personnel.
Section "8.7 Radio Disassembly" on page
Sec 1: 8-39
1:8-12.