Motorola MOTOTRBO PORTABLE DP4800e - Page 92

5-38 Disassembly/Reassembly Procedures Ensuring Radio Immersibility
Troubleshooting Flow Chart for Pressure Test & Leakage Areas
Start
1. Remove vacuum hose from
pump connector
2. Attach pressure hose to
pump connector
1. Operate pressure pump
(pressure = 1 psig)
2. Immerse radio into a water-
filled container
Continuous
Series of
bubbles
YES
NO
Bubbles from
Front
Housing
YES
NO
Bubbles from
Chassis
YES
NO
Bubbles from
Battery Con-
tact Seal
YES
NO
Bubbles from
Lens*/Univer-
sal Connector/
chassis/
Housing Inter-
face/ PTT
1. Dry the radio
2. Apply grease to the full
perimeter of the chassis O-Ring
and replace Chassis Kit and
repeat steps in Troubleshooting
Flow Chart for Vacuum Test
YES
1. Remove Knobs
NO
1. Dry the radio
2. Replace Battery Contact Seal,
Apply grease to the full
perimeter of the chassis O-Ring
and replace Chassis Kit. Repeat
steps in Troubleshooting Flow Chart
for Vacuum Test
1. Dry the radio
2. Apply grease to the full
perimeter of the chassis O-Ring
and replace Chassis Kit and
repeat steps in Troubleshooting
Flow Chart for Vacuum Test
1. Dry the radio
2.Replace Air
Ventilation Label and
Gasket
3. Radio approved
for immersibility
* Only for Display Model
End End End End End