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I. If the CGR-30C instrument is to replace an existing gauge or gauges in the aircraft, it is the
installer’s responsibility to remove the duplicate gauges or components in accordance with FAA
approved methods and procedures (see AC 43.13).
J. An Installation Checklist is provided to assist the installation of the CGR system. It does not
replace the instructions located in this manual.
2.2 Review the "EDC Wiring Work Sheets:"
There are a number of probes and extension cables that will need to be installed. The key to keeping the
installation simple is to organize the work using the "EDC Wiring Work Sheets"
"EDC Wiring Work Sheets"
"EDC Wiring Work Sheets"
"EDC Wiring Work Sheets"
"EDC Wiring Work Sheets" supplied with this kit.
Review the functions assigned to each EDC input on the EDC Wiring Work Sheets. The work sheets are
prepared at the factory with the functions and probes already assigned.
2.3 Verify You Have all the Probes, Modules, Transducers and Cables:
The three EDC 37-pin D-sub connectors and the CGR 25-pin D-sub connector are pre-wired at the fac-
tory. The three EDC connectors are marked Top, Middle and Bottom. The EDC Wiring Work Sheets
provide a list of the probes supplied with this kit. You may be connecting the CGR to an existing EDC
already installed in the aircraft.
A. Check that you have all the probes listed on the EDC Wiring Work Sheets.
B. Check that the wire harnesses are provided with the proper wires for each of the probes shown
on the EDC Wiring Work Sheets.
C. Check that the CGR 25-pin D-sub wire harness is provided.
2.4 Install the CGR Display:
Before starting the installation make sure the instrument will fit in the location you intend to
Before starting the installation make sure the instrument will fit in the location you intend to
Before starting the installation make sure the instrument will fit in the location you intend to
Before starting the installation make sure the instrument will fit in the location you intend to
Before starting the installation make sure the instrument will fit in the location you intend to
install it without obstructing the operation of any controls.
install it without obstructing the operation of any controls.
install it without obstructing the operation of any controls.
install it without obstructing the operation of any controls.
install it without obstructing the operation of any controls. Also, the pilot should have a clear
view of the CGR display without any visual obstructions. The CGR display is installed from behind the
panel into a standard 3 1/8" hole. The mounting holes in the face of the CGR-30 have a limited depth. If
the mounting screws are driven beyond the depth of the mounting holes, damage to the color display will
occur. Mounting screws are provided in the package. These screws must be tightened by hand. If the
screw tighten up before the faceplate secures against the panel, the screws are too long and must be
shortened.
CFR 23.1321(a) states,
“Each flight, navigation, and powerplant instrument for use by any required pilot
during takeoff, initial climb, final approach, and landing must be located so that any pilot seated at the
controls can monitor the airplane’s flight path and these instruments with minimum head and eye movement.”
To comply with this requirment mount the CGR-30C 21" or less from the pilot’s visual centerline to the
middle of the instrument. The pilot’s visual centerline is a perpendicular line from the pilot’s eye to the
instrument panel. In some aircraft, the visual centerline falls to the right of the Attitude Indicator.
If the CGR display is not installed within 8" of the pilot’s visual centerline, the external Master Caution
and Warning Lights should be installed. Installation of Master Caution and Warning Lights are covered
in this manual.
