Motorola PR400 - Manual (Page 95)

6881096C24-A August, 2004
Non-Keypad Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 8-9
6. Insert one end of the speaker retainer into the slot in the front housing (See Figure 8-11 ).
7. Install the retainer screw using a T6 Torx screwdriver. Torque to 2.3 - 2.5 lb/in.
8.4.3.3 Chassis Assembly/Re-assembly
1. Replace the battery contact seal (if necessary) surrounding the battery contact ( Figure 8-12 ).
2. Remove the old Interface Pad from the chassis by scraping off the pad and adhesive with a
straight razor. Use rubbing alcohol and a cloth to completely remove the adhesive from the chas-
sis surface. With the chassis clean and dry, add a new Interface Pad to the chassis.
3. Place the main circuit board straight down on top of the chassis with the frequency and volume
switches facing down (
Figure 8-15 .
4. Use the T6 Torx screwdriver to fasten the screws holding the main board to the chassis. Tighten
to 3.7 - 3.9 in/lb.
5. Replacing the O-ring.
a. If you have the older chassis (2786389Z01) use the older O-ring (3286431Z02). Position
the O-ring in the top groove by the volume/frequency switches. Stretch the O-ring to
place it into the retaining groove at the bottom end of the chassis.
Note: Make sure the speaker and microphone wires are routed tightly between the speaker bas-
ket and the housing post
Figure 8-11. Speaker Re-assembly
Note: When fastening the speaker retainer screw, make sure the wires are out of the way to pre-
vent pinching by the retainer.
Note: Be sure the battery contact seal protrudes through the chassis and is not pinched under the
chassis.
Speaker Retainer
Speaker
Front Housing Slot
Speaker Tab
Tab Opening