Removing And Installing The Rotary Switch; To Remove The Rotary Switch; To Install The Rotary Switch - Motorola MTP850 S Service Manual

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Removing and Installing the Rotary Switch

Recommended tools: T-6 Torx bit, Torx driver, Phillips screwdriver, mini flat-tip
screwdriver, nut selector adapter (FR10056AT), hex head screwdriver.

To remove the Rotary Switch

1. Remove the internal assembly from the unit. Refer to "Removing and
2. Remove the selector knob cover.
3. Unscrew the selector screw.
4. Remove the selector knob.
5. Mount the adapter onto the selector nut. Insert the hex head screwdriver in
6. Remove the Retainer earpiece assembly by inserting the mini flat-tip
7. Remove the rotary switch assembly and rubber o-ring seal.

To install the Rotary Switch

1. Make sure that the o-ring seal is in place.
2. Install the rotary switch assembly.
3. Place Retainer earpiece assembly into position hooking the stiffener under
4. Insert the selector nut. Mount the adapter onto the selector nut. Insert the hex
5. Install the selector knob.
6. Install the selector screw. Screw to 2.0±0.5 in-lb (0.23±0.058 Nm).
7. Insert the selector knob until it clicks into place.
8. Install the internal assembly from the unit. Refer to "Removing and Installing
MTP850 TETRA Handportable Terminal / Basic Service Manual
Installing the Internal Assembly" on page 6-15.
the adapter and turn counter clockwise to release the selector nut.
screwdriver into each of the two tabs and unhooking the Retainer earpiece
assembly from the front housing.
the two tabs of the front housing, and then pressing down until the two metal
tabs click into place.
head screwdriver in the adapter and turn clockwise to install the selector nut.
Screw to 5±0.5 in-lb (0.58±0.058Nm).
the Internal Assembly" on page 6-15.
MAINTENANCE