M E C H A N I C T E C H N I C I A N I I
DEFINITION OF DUTIES:
This is journey level, skilled work involving the inspection, preventive maintenance, and repair of either a wide variety of light, medium, and heavy duty vehicles and mobile equipment (such as dump trucks, cement mixers, excavators, graders, loaders, back-hoes, rollers, pavers, various types of tractors, trenchers, tow trucks, street sweepers, etc.), transit vehicles, and/or fire/rescue apparatus as well as portable firefighting and rescue equipment. Primary contacts are with crew/shift to which an employee is assigned, providing and receiving information and instructions; and with manufacturers' representatives to discuss incomplete/inaccurate schematics and repair/service manuals, and replacement parts and systems This class of work may entail some public service/assistance, but it is incidental to the primary focus of the work performed.
An employee in this class, working under general supervision, is responsible for: exercising independent judgment to carry out preventive maintenance tasks; determining causes of vehicle/equipment operating problems by tracing and locating defects; selecting and safely using proper tools, equipment, devices, manuals, references, and efficient procedures and techniques; and making repairs to heavy mobile equipment/vehicles, transit vehicles, and/or fire/rescue apparatus as well as portable firefighting and rescue equipment. A Mechanic Technician II plans and carries out the successive steps and handles problems and deviations in the work in accordance with instructions, policies, and previous training. A supervisor or Senior Mechanic Technician will provide assistance or training on problems/assignments without precedent. Operating and/or performance tests are usually administered by supervisory personnel or a Senior Mechanic Technician. Complexity of the work derives from work on gasoline and diesel engine vehicles and equipment which include hydraulic, pneumatic, mechanical, electrical, electronic and computer controlled utility systems, controls, and features, many of which work in consonance with and are dependent upon each other for proper functioning. Complexity is furthered by the large variety of equipment spanning many model years, all of which have to be maintained/repaired to exacting tolerances and clearances; and the frequent completion of repair work started by another employee, and based on limited information supplied by vehicle/equipment operators. Work is performed in accordance with technical manuals, illustrations, specifications, diagrams, and schematics. Due to changes during production, schematics and manuals may be incomplete, inaccurate, or absent. The impact of properly performed work is the provision of vehicles which are both operationally safe and capable of performing in the manner for which they were designed. While positions of this class are non-supervisory, employees periodically provide on-the-job training and instruction to less experienced Mechanic Technicians. Work is performed in all of the following settings: a centralized vehicle maintenance facility, machine shop, highway maintenance depot, on the road, at fire scenes, land fills, or wherever a break down occurs. Repair work may be performed in any weather conditions. Employees work in tiring and uncomfortable positions for long periods, and must continuously bend, reach, stretch, lift, stoop, climb and crouch often on top of, in, and under vehicles and engines in cramped and awkward positions. Performance of the work of the class regularly involves exposure to loud noises, vibrations, dust, dirt and grease. Employees perform physically strenuous work while standing, lying down, or sitting; and pull, push, lift and carry items which weigh up to 100 pounds, and occasionally in excess of 100 pounds. The work requires employees to push, pull, turn, position and otherwise move parts, assemblies, components, equipment and tools often near or immediately adjacent to running engines where employees are exposed to compressed air, electrical current, belts, pulleys, fan blades and sharp edges. Additional hazards include spring-loaded parts, lifts and presses on wet/greasy floors, hot hydraulic fluids and oils, acetylene and oxygen cutting torches near flammable substances, battery acid and cleaning solvents, and working at heights of from ten to twenty feet above the ground or floor level. Performance of the work of the class may occasionally expose employees to human/animal waste and/or body fluids. These hazardous working conditions require employees to strictly follow safety procedures and regularly employ safety equipment including safety glasses, rubber and leather gloves, hearing protection, eye and face shields, respiratory masks, and steel toe shoes. Despite these precautions, employees regularly receive cuts, burns, bruises and strains as well as eye, ear, nose, throat and skin irritations.
EXAMPLES OF DUTIES: (Illustrative Only)
Traces and locates defects and causes of mechanical, electrical, computer and other problems to determine type and extent of necessary repairs using diagnostic tools, manufacturers' repair/maintenance manuals and schematics.
Selects and complies with appropriate repair specifications and procedures.
Tears down and rebuilds components and assemblies of gasoline and diesel powered vehicles by fitting and installing needed parts such as pistons, valves, bearings, gears, and cylinders to appropriate tolerances; makes changes or modifications in accordance with specifications and guidelines.
Road/performance tests vehicles and equipment during and occasionally upon completion of maintenance and/or repair work.
Connects, meshes, aligns, and adjusts items and systems to assure proper operation of the complete system or vehicle.
Maintains records of time and materials used.
Participates in training programs and instructs lesser skilled employees.
Reads and interprets sketches, specifications, and service manuals.
Works in machine shop and machine tools and rebuilds equipment, parts, and materials needed for repair work; and fabricates parts, hydraulic hoses, and tools when unavailable.
Maintains work area in a clean and orderly manner.
Requests parts and checks them for compliance with manufacturers' specifications.
Provides guidance and training to uniformed fire/rescue personnel on the mechanical aspects of apparatus and equipment utilized.
Replaces HEPA filters in ambulance air filtration systems.
Participates in the development of specifications for new fire/rescue apparatus.
Participates in the inspection of new fire/rescue apparatus during construction at various factory locations.
Participates in fire/rescue vehicle collision investigations to determine whether any mechanical failure/malfunction contributed to a collision, or the extent of the damage. Performs related duties as required.
Experience: Any combination of technical education and experience equivalent to four (4) years of verifiable experience in problem diagnosis, repair, maintenance and inspection of a variety of automotive, heavy duty diesel or gasoline buses, heavy duty trucks, construction equipment, and/or fire/rescue apparatus and equipment.
Education: Completion of high school or High School Certificate of completion recognized in the State of Maryland, or a High School equivalency certificate.
Equivalency: An equivalent combination of education and experience may be substituted.
Knowledge, Skills, and Abilities:
Considerable knowledge of the mechanical makeup, operation, and working relationships of a variety of heavy duty systems, assemblies and parts, including such major systems as diesel, multi fuel, and gasoline engines; automatic and manual transmissions and gear reduction systems, including those with torque converters, planetary gears, and multiple gear ranges; driveline assemblies including differentials, power dividers, and dual speed axles; and hydraulic lifting, loading, turning, positioning and stabilizing systems including their mechanical, hydraulic, pneumatic and electronic controls.
Knowledge of, or the ability to acquire knowledge of the design of fire/rescue apparatus and equipment, and how it is used and operated, when assigned maintenance and repair tasks on this equipment.
Knowledge of how computer, electrical, transistorized, and other non mechanical systems tie in with and affect the operation of mechanical systems.
Knowledge of the standard tools, equipment, diagnosis, and test procedures and practices used in the repair and preventive maintenance of heavy/transit equipment and/or fire/rescue apparatus and equipment, including working knowledge of vocational components of aerial ladders and fire pumps, as well as the maintenance, repair, fabrication and mounting of fire/rescue tools, equipment, hose, and appliances.
Knowledge of the occupational hazards and safety precautions of the heavy/transit and/or fire/rescue apparatus and equipment mechanic trade.
Skill in the diagnosis of mechanical, electrical and electronic malfunctions.
Skill in the use of the hand and power tools and equipment associated with the heavy/transit and/or fire/rescue apparatus and equipment mechanic trade.
Skill to remove and tear down major components and assemblies including engines, transmissions, and power take offs; and to rebuild, adjust, re install, align and mesh components and assemblies.
Ability to lift and move objects that weigh up to 100 pounds, and occasionally objects that weigh in excess of 100 pounds.
Ability to work overhead or in stretched, cramped, awkward, tiring, and uncomfortable positions.
Ability to safely operate all fire/rescue apparatus and their respective components.
Ability to use and wear personal protective clothing and equipment when exposed to dust, fumes, and other irritants to eyes, nose, ears, skin and respiratory system.
Ability to distinguish between colors.
Ability to provide emergency repair service on heavy/transit and/or fire/rescue apparatus and equipment outside the regular shop location.
Ability to apply NFPA standards in inspecting, examining, and performing work on fire/rescue apparatus and equipment.
At Time of Employment Application: Possession of a valid current Class "C" or equivalent motor vehicle operator's license from the applicant's state of residence.
First Day of County Employment: Possession of a Class "A" or "B" Commercial Driver's License with Passenger and Air Brake Endorsement, issued by applicant's state of residence. *[Employees of Montgomery County Fire and Rescue Service (MCFRS) require at least a valid Instructional Permit for Class "A" CDL. Passenger endorsement not required for Fire and Rescue Service positions.]
Employees in MCFRS must possess and maintain an Emergency Vehicle Technician
(EVT) Level I certification, which includes successful completion of examinations
T-4 Heavy-Duty Truck, Brakes (ASE)
T-5 HD Truck, Suspension and Steering (ASE)
T-8 PMI (ASE)
F-2 Design & Performance of Fire Apparatus (EVT)
Upon Completion of Probationary Period: Possession of a Class "A"
or "B" Commercial Driver's License, with Passenger and Air Brake Endorsement
from employee's state of residence; Federal Environmental Protection Agency
Air Conditioning Certification (Clean Air Act, 1990, Section 608 and 609) appropriate
to the equipment serviced/inspected; and a Maryland State Forklift Operator
License. [MCFRS positions require a valid Class "A" CDL.]
Within Thirty-six (36) Months from Date of Appointment: (MCFRS Positions Only)
Employees in MCFRS must obtain and maintain EVT Level II certification, which
includes successful completion of examinations in:
T-2 Heavy-Duty Truck, Diesel Engines (ASE)
T-3 Heavy-Duty Truck, Drive Train (ASE)
T-6 Heavy-Duty Truck, Electrical Systems (ASE)
F-3 Fire Pumps and Accessories (EVT)
F-4 Electrical Systems (EVT)
Individuals appointed to a non-bargaining unit position in this class will be required to serve a probationary period of twelve months; or if promoted to a non-bargaining unit position in this class, serve a probationary period of six months. Individuals appointed or promoted to a bargaining unit position in this class will be required to serve a probationary period of six months. Performance will be carefully evaluated during the probationary period. Continuation in this class will be contingent upon successful completion of the probationary period.
MEDICAL PROTOCOL: Core Exam II
Class Established: February 1966
Revised: November 1973
October 2003 (M)
NOTE: This class was formerly titled Mechanic II and Mechanic.