Motorola APX 7000 Basic Service Manual page 129

Disassembly/Reassembly Procedures: Ensuring Radio Submergibility
8.10.7.2 Attaching Grille Eliminator
1. Remove the Speaker Grille (27) by following steps in
remove the Memory Door (33).
2. Slide the top of the Grille Eliminator under the Control Top Bezel (11) and swing it down
towards the radio. Secure the Grille Eliminator using the two center screws (29) with a torque
of 10 in lbs. See
8.10.7.3 Test Procedure
1. Attach the Vacuum Adapter onto the radio in the same manner as a radio battery. Ensure
both latches are clicked into place.
2. Place the radio on a flat surface with the Grille Eliminator facing upward.
3. Pull the knob on the Vacuum Pump to create vacuum. The vacuum test pressure should be
between 5-7 inHg.
4. Observe the gauge for approximately 2 minutes.
• If the needle falls less than 2 inHg, the radio passes the vacuum test.
i. Remove the Grille Eliminator
ii. Visually inspect the Port Seal Label (26) for proper adhesion to the
iii. If the seal passes this inspection, this radio is approved for submergibility. No additional
iv. Replace the Speaker Grille Assembly (27) and Memory Door (33) as described in the
Screws
Figure 8-58. Attaching Grille Eliminator
Figure 8-58.
Ensure that the vacuum pressure NEVER exceeds 7 inHg.
The radio has pressure sensitive components that can be
damaged if the pressure exceeds this limit.
Speaker Module (23). Make sure there are no wrinkles or cuts to the material that would
cause a leak. Replace seal if damaged. (See appropriate section for servicing the
seals).
testing is required.
reassembly procedures.
Grille Eliminator
Vacuum Adapter
Section 8.7.1 on page 1:8-12
Sec 1: 8-41
and