This Service Manual contains factory recommended procedures and instructions for ground handling, servicing and maintaining the Cessna 310 aircraft. Where specific reference is made to the 310 aircraft in this Service Manual this reference applies to 310L and 310N type certificated aircraft. Besides serving as a reference for the experienced mechanic, this Service Manual also covers step-by-step procedures for the less experienced mechanic. This Service Manual should be kept in a handy place for ready reference. If properly used, it will better enable the mechanic to maintain the Cessna 310 aircraft and thereby, establish a reputation for reliable service.