Equipment Mechanic III (Open and Promotional)

County of San Mateo•San Mateo, CA

12d•Onsite

About The Position

The County of San Mateo’s Department of Public Works is seeking applications for the position of Equipment Mechanic III. The Equipment Mechanic III, under general supervision, services and repairs water district pumps and emergency generators, performs mechanical maintenance and repair work on road construction equipment in the shop as well as out in the field, and performs routine maintenance and repair tasks as appropriate. The Vehicle and Equipment Services Section maintains, inspects, services, and repairs County motor vehicles including school and other buses, trucks, equipment, Sheriff's Office vehicles, and motor pool vehicles. Our service and repair stations are located in Redwood City and San Mateo.

Requirements

Knowledge of mechanical maintenance of water pumps and emergency generators.
Knowledge of mechanical maintenance and repair of diesel, gasoline and electric powered road maintenance and construction equipment.
Knowledge of methods, tools, materials and equipment used in servicing and repairing pumps and emergency generators.
Knowledge of switch gears and the methods for testing and diagnosing main power systems.
Knowledge of methods, tools, materials and equipment used in servicing and repairing diesel, gasoline and electric powered road and maintenance and construction equipment.
Knowledge of tools and modern testing equipment required for repair and maintenance of equipment.
Knowledge of capabilities and operation of road maintenance and construction equipment.
Knowledge of proper condition of various automotive and equipment parts, and procedures for ensuring proper condition and operation.
Knowledge of safety rules, procedures and practices pertaining to the use and repair of heavy equipment and in the operation of a repair shop.
Knowledge of safety rules, procedures and practices pertaining to working with high voltage equipment.
Ability to perform complex service and repair work on water pumps and emergency generators.
Ability to perform complex service and repair work on diesel, gasoline and electric powered road maintenance and construction equipment.
Ability to work with high voltage equipment.
Ability to use heavy equipment repair tools, including mechanic's hand tools, air wrenches, cooling system tester, volt-ohm meter, grease gun, tire balancer, tire changer and floor jack.
Ability to use specialized diagnostic equipment.
Ability to use oxy-acetylene and stick-welding equipment.
Ability to use drill press, grinding machine and metal lathe.
Ability to use chassis lubrication equipment.
Ability to perform heavy manual labor.
Ability to read and interpret shop manuals to perform mechanical repair.
Ability to follow oral and written instructions.
Ability to follow safety rules, procedures and practices.
Ability to work courteously and effectively with the public and with co-workers.
Ability to bend, stand and walk for extended periods of time and lift and carry equipment and supplies used in the course of the work, such as cylinder heads, one-ton truck tires, and air impact wrenches.
Four years’ experience as an journey level mechanic and demonstrated proficiency in the repair and maintenance of a wide variety of heavy equipment.
Possession and maintenance of a valid California Commercial Learner’s Permit at the time of appointment is required if a California Class A Commercial Driver’s License is not held; and must obtain and maintain a valid California Class A Commercial Driver’s License with tank vehicle and hazardous materials endorsements within six months of hire.
Possession and maintenance of a valid California Class A Commercial Driver’s License with tank vehicle and hazardous materials endorsement.

Responsibilities

Inspect and maintain water district pumps and all emergency generators.
Perform and run tests on all assigned pumps and generators as required.
Perform preventative maintenance on all pumps and generators, including tune-ups, oil changes.
Overhaul pumps, adjust packing, and adjust thrust washers.
Maintain a record of each unit, which may include but not limited to, preventative maintenance, and inspection dates and times.
Maintain and troubleshoot diesel process equipment such as pumps, valves, mechanical seals and tanks.
Perform and coordinate preventative maintenance per required schedule and procedures.
Certify pumps and generators to meet California Air Board Quality standards.
Overhaul small to large gasoline and diesel engines.
Replace bearings, adjust and repair electrical and fuel systems.
Replace wheel cylinders, reline and adjust brakes.
Inspect and replace shock absorbers, tie rods, ball joints, king pins, idler arms, and steering arms.
Inspect, repair and replace master cylinders, wheel cylinders, pads, linings, calipers, drums, shoes and brake drum rotors.
Clean and pack wheel bearings, and U-joints.
Install, inspect, repair and replace electrical and ignition systems, including generators, alternators, voltage regulators, batteries and emergency equipment.
Install, inspect, repair and replace fuel systems including pumps, filters, and carburetors.
Perform routine tune-ups of vehicles, which includes replacing air cleaner, spark plugs, points, condenser; inspect, repair or replace wires, belts, distributors; clean and adjust the carburetor and set the timing.
Adjust and repair grader blade and loader bucket assemblies.
Remove and replace tracks, engines, motors, bearings and other component parts.
Inspect, operate and repair all hydraulic equipment.
Fabricate parts, brackets, tools and other equipment.
Cut and weld using oxy-acetylene and electric arc equipment.
Make repairs of equipment in field when necessary.
Drive transport vehicles to move equipment.
Lube chassis, door and hood hinges, door locks and padlocks check and maintain fluid levels, change oil and oil filters.
Inspect, clean and service air cleaners.
Repair, mount and balance tubes and tires and rotate tires as needed.
Inspect, test and replace batteries, cables and terminals.
Steam clean vehicle exterior, engine compartment and other components.
Inspect, replace and repair cooling system, radiator, pump, thermostats, belts and hoses.
Inspect, repair and replace exhaust system muffler and exhaust pipes.
Inspect engine, transmission and differential for leaks and cracks; refer to supervisor if found and complete a repair sheet.
Inspect and adjust clutch for free play.
Install seat belts and inspect for wear.
Perform minor repairs to parts of engine and/or replace them.
Inspect and adjust or replace door, hood, trunk latches.
Replace minor parts such as gauges, warning light bulbs, fuses, wind-shield wiper blades, radiator and gas tank caps; replace and adjust headlights and taillights.
Complete repair sheets noting parts and labor hours used.
Prepare records and reports.
Perform smog inspections and certifications.
Observe safety regulations, work in such a manner to avoid hazardous situations, and bring potential hazards to supervisor's attention.
Make service calls using shop vehicle lubrication truck.
Drive and operate forklift.
Perform related duties as assigned.