1971-2009 Cessna 340/340A Installation Instruction and Service Manual

Air Conditioning Installation and Service for Cessna 340/340A

• Covers 1971–2009 Cessna 340 and 340A aircraft, specifically detailing the Keith Products R134a air conditioning system installation and maintenance
• Official Keith Products technical report 34-010-61M, original release dated September 1, 1995
• Contains 4 detailed sections on installation, required publications, service procedures, and weight and balance supplement data
• Files are available to your account the moment payment clears
• Stored against your account so you can retrieve it after a hard-drive loss
• Print resolution preserves exploded-view detail and technical schematic accuracy
• Indexed PDF search covers every chapter and appendix
• Full-text search finds any part number in seconds
• This specific edition provides the authorized installation instructions and service procedures required for retrofitting R134a systems into the Cessna 340 airframe series

Component Installation and System Architecture

The 1971–2009 Cessna 340 and 340A service documentation covers the integration of Keith Products air conditioning systems into pressurized airframes. The manual explains the configuration of the Equipment Package, including compressor, condenser fan, and receiver dryer, alongside the Evaporator Package containing the blower and expansion valve. Installation topics include pressure bulkhead grommet routing, compressor pallet assembly mounting, and skin doubler cutout requirements for condenser fan airflow. The documentation details the specific structural modifications and wiring connections necessary for system operation.

Service and Maintenance Specifications

Technical data within the Cessna 340/340A publication includes refrigerant system operation, condensate drain valve management, and scheduled inspection intervals for the compressor drive belt. The manual provides weight and balance supplement samples, documenting the station arms and moment calculations for the compressor and evaporator installations. Belt tension is specified at 30–35 pounds in the inspection data. Maintenance intervals occur every 100 flight hours to verify mounting security and refrigerant levels. Refer to what an OEM service publication covers for structured guidance on system upkeep.

Reference only — always consult a certified technician before performing service on this equipment. This 21-page Keith Products OEM installation and service manual covers the Cessna 340 and 340A, detailing R134a system components, structural installation, and maintenance procedures.