Inspect, diagnose and repair mechanical failures and defects in fire apparatus and other equipment. - Adjust, repair, replace, or overhaul a variety of diesel and automotive engines, transmissions, clutches, rear ends, differentials, transfer cases, hydraulic brake systems, axles, pumps, injectors, carburetors, final drives, sprockets, rollers, and truck and steering systems. - Maintain, diagnose and repair electrical defects, repairing or replacing starting motors, generators, and ignition systems; repair and overhaul fire suppression components and related equipment. - Perform complete fabricating and repairing to repair, alter, or maintain Fire Department equipment and trucks; perform complete routine maintenance including oil changes and lubrication services; perform California Highway Patrol (CHP) 90-day compliance inspections and fire pump tests. MINIMUM QUALIFICATIONS Experience: Completion of an accredited heavy equipment mechanic apprenticeship-training program or successful completion of the California Fire Mechanics Academy, Inc. Emergency Vehicle Technician (EVT) I course of instruction. One year of successful experience as a Heavy Equipment Mechanic or Senior Heavy Equipment Mechanic with Riverside County, or an equivalent class in another jurisdiction may substitute for mechanic apprenticeship or Fire Mechanic I certification. License: The department will permit the selected candidate to obtain the required licensure within six months of hire. Candidates must possess or be able to obtain within six months of hire, a valid California Class A or Class B Commercial Driver's License, depending on the area of assignment. This position has been designated by the Department of Transportation (DOT) as safety-sensitive, applicants are required to complete a DOT mandated alcohol and drug-screening. (A positive test or refusal to test during the past two years will disqualify an applicant from consideration for County employment). Reference checks from former DOT regulated employers are also required. Employees in safety-sensitive positions are subject to DOT alcohol/drug testing in the following situations: random, reasonable suspicion/cause, return-to-duty, and post-accident. For detailed requirements, visit DOT Requirements. Knowledge of: Principles of gasoline and diesel engines; heavy equipment maintenance and repair; methods, tools, equipment, and parts used in the repair and maintenance of construction equipment; operation and application of mechanical diagnostic equipment. Ability to: Perform repair and maintenance work on heavy equipment; diagnose and repair mechanical defects in a variety of heavy-duty gasoline and diesel construction equipment in both the field and shop; operate equipment used in repairing or servicing construction equipment; read and understand shop manuals and mechanical diagrams; follow written and oral directions; perform work safely; work with minimal supervision.