Knowledge of engine systems refers to the terminology, characteristics, and operation of engine valves, piston assemblies,
engine bearings, cylinders, cylinder heads, cylinder blocks, crankshaft assemblies, compression ignition, and cooling system.
Knowledge of automotive power train systems refers to the terminology, characteristics, and operation of such components
as clutches, universal joints, manual and computer enhanced automatic transmission systems, differentials, and drive axles.
Knowledge of automotive suspension systems refers to the terminology, characteristics, and operation of standard and
computerized/air- controlled suspension, and standard and power assisted steering, as well as wheel alignment systems and
steering geometry.
Knowledge of automotive braking systems refers to the terminology, characteristics, and operation of air and hydraulically
actuated braking components such as cylinders, valves, linkage, calipers, sensors and control modules and anti-lock brake
systems.
Ability to use technical reference materials and technical manuals refers to reading, comprehending, and interpreting
technical information, such as illustrated parts breakdown, checklists, flow charts, electronic media, and schematics.
Ability to troubleshoot and diagnose malfunctions in automotive components or systems refers to a proficiency in observing,
testing, analyzing, and isolating sources of trouble in automotive systems or their components, such as electrical/electronic
systems, engine, power train, fuel delivery, and suspension and braking systems through the use of appropriate automotive
test equipment.
Ability to use automotive test equipment refers to the knowledge of, and proficiency with, various types of electrical/electronic
diagnostic test equipment, such as voltage/amperage testers (VAT), multimeters (VOM), test lights, scanners, gas analyzers,
etc.
Ability to use mechanical test equipment and hand tools refers to the knowledge of, and proficiency with, various types of
mechanical diagnostic test equipment and hand tools, such as micrometers, calipers, pressure gauges, etc.
Ability to make minor repairs to automotive components or systems refers to a proficiency in replacing parts or making
adjustments to automotive systems or their components, such as electrical/ignition, emissions, fuel delivery, engine,
suspensions, power train, braking systems, intake, exhaust, and starting aids.
Ability to make major repairs to automotive components or systems refers to a proficiency in overhauling or rebuilding
automotive systems or their components, such as power train, engine, fuel delivery, suspension, and braking systems.
EXAMINATION REQUIREMENTS:
Applicants must successfully complete Postal Service Test 943 and Test 944, to demonstrate their knowledge and ability to
troubleshoot, diagnose, and make minor and major repairs to automotive systems.
Effective June 11, 2022, Exam 941 Automotive Bench Test is suspended until further notice.
PHYSICAL REQUIREMENTS:
Applicants must be physically able to efficiently perform the duties of the position.
TRAINING REQUIREMENTS:
Applicants who qualify under this standard may be required to satisfactorily complete a prescribed training course(s) prior to
reassignment or promotion.