Robinsons R66 - Page 575

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97-20 Radar Altimeter Installation (continued)

E. Antenna

Refer to § 6-80 for antenna locations & R66 Illustrated Parts Catalog (IPC) Chapter 6.

Removal

1. Turn battery & avionics switches off and pull out RADAR ALT (2 amp) circuit breaker

at panel.

2. Remove hardware securing F469 scuff plate and carpet assembly to floor, remove

plate, and peel back carpet as required. Remove hole plug.

3. Disconnect antenna cable from antenna.

4. Remove screws securing antenna to chin. Repeat steps for opposite-side antenna.

Installation

1. Turn battery & avionics switches off and pull out RADAR ALT (2 amp) circuit breaker

at panel.

2. Connect antenna cable to antenna and install screws securing antenna to chin. Verify

security.

3. Install floor hole plug. Install hardware securing F469 scuff plate and carpet assembly

to floor. Repeat steps for opposite-side antenna.

4. Push in RADAR ALT (2 amp) circuit breaker at panel. Turn battery & avionics switches on.

5. Perform appropriate functional checks per Freeflight Systems Instructions for Continued

Airworthiness. Turn battery & avionics switches off.

F. Scheduled Maintenance and Inspections

Refer to Freeflight Systems Instructions for Continued Airworthiness.

G. Special Maintenance and Inspections

1. Turn battery & avionics switches off. Open circuit breaker panel. Open instrument

console, remove perimeter screws securing instrument face to upper console, or remove

Garmin GDU 620 Display per § 95-70. Hinge front left seat forward as required.

2. Inspect condition of and verify no obvious damage to RAD-40 Indicator, ATG-410

Tone Generator, RA-4000/RA-4500 Radar Altimeter, copper bus bars, circuit breaker,

and wiring. Verify no loose, chafed, or broken wires or terminals. Verify no evidence

of arcing. Verify equipment security.

3. Secure circuit breaker panel and close instrument console, install perimeter screws

securing instrument face to upper console, or install Garmin GDU 620 Display per §

95-70. Hinge front left seat aft as required.

MAY 2015 Chapter 97 Avionics Page 97.11