User's Manual

14221-1510-4440, Rev. B
35
7.1.2 Remote-Mount Radio Installations Only: Application of the CH-25
Remote-Control Conversion Kit
For a remote-mount radio installation, the CH-25 Remote-Control Conversion Kit must be applied to the
existing front-mount radio, to convert it to a remote-mount radio with a separate control head. To
accomplish this, complete the procedures presented in the kit’s Product Manual, publication number
14221-1510-4450. That manual is included with the kit.
Instructions included in Product Manual 14221-1510-4450 include procedures on updating the radio and
control head software/firmware if necessary. The manual also includes instructions on removing the
control head from the existing front-mount radio, attaching the radio’s remote interface to the front of the
radio thus converting it to a remote-mount radio, and attaching the control head’s remote interface to the
back of the control head.
After completing the conversion, continue with the radio’s mounting bracket installation.
7.1.3 Mounting Bracket Installation
The radio’s mounting bracket is included with the Mounting Bracket Kit 14015-0201-01. Kit contents
are shown in Figure 7-2. This kit is Item 1 listed in Table 4-2 (page 13).
When selecting a mounting location for the radio, verify sufficient clearance can be maintained around
the radio for installation and service access. A minimum clearance of approximately four (4) inches
(10 centimeters) is recommended at the rear, left and right sides of the radio. As previously stated, for a
front-mount radio, the area directly at the front of the radio must be completely clear of objects so the
operator can easily access and view the radio’s front panel. For a remote-mount radio, clearance at the
front of the radio must be sufficient for removal and attachment of the Remote Control Cable.
As shown in Figure 7-3, the bracket is both left-to-right and front-to-rear symmetrical. It has eleven (11)
holes for securing it to a mounting surface. At least four (4) of these holes must
be used to secure the
bracket to the mounting surface. Four 1-inch-long #10-32 stainless-steel self-tapping screws are included
in the Mounting Bracket Kit for this purpose. However, some other type of hardware (not supplied) may
be used, such as #10-32 stainless-steel self-locking hardware (i.e., machine screws with washers and
locking nuts), or self-drilling screws. Self-drilling screws such as “TEK” screws do not require drilling of
a pilot hole prior to installation. Do not
use common self-threading sheet metal screws because they will
loosen over time with vehicle vibrations.
The following mounting procedure is recommended:
1. Determine the best radio-to-bracket position and angle by test-fitting the radio into the mounting
bracket at the selected vehicle mounting location. Slide the radio between the sides of the bracket and
temporarily secure it to the bracket with several of the M5 socket-head screws from the bracket kit.
Make any positional adjustments as necessary.
2. At the rear of the radio, verify sufficient clearance is available for cables and service access.
3. If the mounting surface is not flat (such as the top of a transmission hump), construct a suitable
mounting wedge as necessary, and attach the wedge to the surface using an approved attachment
method. Never mount the bracket directly to a non-flat surface.
4. On the mounting surface, mark the selected location for the bracket, and then remove the radio from
the bracket.
5. Clean and remove any foreign material from the mounting surface.