BUS AND TRUCK MECHANICS AND DIESEL ENGINE SPECIALISTS keep the equipment
under their care operating safely, dependably and economically. Some
work mostly on diesel engines of equipment such as farm machines, ships,
locomotives, compressors and pumps used in oil well drilling and in
irrigation. Others work mainly on construction equipment such as cranes,
power shovels, bulldozers and paving machines. Mechanics work on diesel
and gasoline-powered vehicles such as buses and trucks. They may also
work on equipment such as earth movers and graders.
Mechanics' duties vary with shop policy as well as the type of equipment
they work on. In engine building shops, some mechanics repair and adjust
engines to restore them to good working order, while others specialize
in parts of the engine such as fuel injection systems. Mechanics who
work in garages or heavy equipment shops usually have more varied
duties. They may work on engines, transmissions, differentials, chassis,
brakes, steering gears and front ends, as well as on motors,
compressors, hydraulic and electrical systems. Depending on shop policy,
mechanics have the option to specialize in certain parts of the machine
or vehicle they repair. All mechanics diagnose problems and dismantle,
clean, repair, refit, assemble and test the equipment according to
manufacturers' manuals and specifications. Mechanics use pressure
gauges, precision instruments, torque wrenches and other hand tools to
perform their duties.
Employers
-
Federal, State and
local government
-
Trucking fleets,
train companies and cargo industry
-
School systems
-
Bus-lines
-
Public transit
companies
-
Freight trucking
companies
-
Any organization
providing transportation to deliver products or service
Skills and Qualifications
Successful candidates in this career area will possess and develop the
following skills and qualifications:
-
Adjustable wide
mouth pliers: pliers, slip joint pliers, water pump pliers
-
Blow torches:
acetylene torches, cutting torches
-
Boring tools:
boring bars, boring machines
<< Back to Top of Page
Powerboat Mechanic
POWERBOAT
MECHANICS repair, service, and adjust electrical and mechanical
equipment of gasoline or diesel-powered inboard or inboard-outboard boat
engines. Most small boats have portable outboard engines that are
removed and brought into the repair shop. Large craft, such as cabin
cruisers and commercial fishing boats, are powered by diesel or gasoline
inboard or inboard-outboard engines, which are only removed for major
overhauls. Most of these repairs are made at the docks or marinas. Boat
mechanics may also work on propellers, steering mechanisms, marine
plumbing, and other boat equipment.
Small
engines, like large engines, require periodic service to lessen the
chance of any breakdowns and to keep them operating at top performance.
During routine equipment maintenance, mechanics follow a checklist
including inspection and cleaning of electrical systems, brakes, plugs,
carburetors, and other parts. After inspection, mechanics usually repair
or adjust parts that do not work properly, or replace parts that are
beyond repair.
When
equipment breaks down, boat/small engine mechanics use various
techniques to diagnose the source and extent of the problem. They may
use special computerized diagnostic testing equipment to analyze
problems. When the problem is located, mechanics make the needed
adjustments, repairs, or replacements. They may dismantle motors and
examine parts for defects. Mechanics adjust generators and replace
faulty wiring. They install piston rings, adjust carburetors, grind
valves, and repair or replace reduction gears, and other parts. They
then start the motor and listen to its sound to make sure it is running
properly. Mechanics test the motor for conformance to manufacturer's
specifications. Boat/small engine mechanics also examine propellers and
propeller shafts and repair defective parts. Some highly skilled
mechanics use specialized components and the latest computerized
equipment to customize and tune boats for racing. They may operate boats
on the water to test repairs.Employers
-
Retail dealers of
boats
-
Independent repair
shops
-
Marinas and boat
yards
-
Themselves (self-employed)
SKILLS AND QUALIFICATIONS
Successful candidates in this career area will possess and develop the
following skills and qualifications:
-
Mechanical aptitude
-
Good work ethics
-
Dependability and
reliability
-
Ability to learn
new information
-
Interpersonal
skills
-
Ability to observe safety practices
-
Ability to work as part of a team
-
Ability to analyze problems
-
Knowledge of the fundamentals of small 2- and
4-stroke engines
-
Ability to solve problems
-
Knowledge of basic electronics
TOOLS AND TECHNOLOGY
-
Inboard and outboard marine engines
-
Propellers, steering mechanisms, marine plumbing,
and other boat equipment
-
Piston rings, valves, gears, and other parts
-
Hand tools such as wrenches, pliers, and
screwdrivers
-
Drills, grinders, and other power tools
-
Electrical testing meters
-
Computerized diagnostic testing equipment
-
Service manuals
<< Back to Top of Page
Farm Equipment Mechanic
Farm equipment mechanics work mostly on equipment brought into the shop for repair and
adjustment. They check engine performance and repair or replace
defective parts such as piston rings and cylinder valves, and test to
make sure everything is operating correctly. In large shops, mechanics
generally specialize in certain types of work, such as diesel engine
overhaul, hydraulic maintenance, or clutch and transmission repair.
Others specialize in certain repairs, such as air-conditioning units in
cabs of combines, or the repair of specific types of equipment such as
hay balers. In addition, some mechanics assemble new machinery, do body
work, and repair dented or torn sheet metal on tractors and other
machinery. Some mechanics install and service milking, irrigation, and
other types of farm equipment. Mechanics also perform preventive
maintenance on older equipment. Periodically, they test, adjust, clean,
and tune engines to keep them in proper working order. During planting
and harvesting seasons, farm equipment mechanics may travel to farms to
make emergency repairs to minimize delays in farm operations.
Employers
-
Service departments of farm equipment dealers
-
Agricultural production and services
-
Repair shops on large farms
-
Independent repair shops
-
Manufacturers of farm equipment
-
Equipment rental and leasing companies
Tools and Technology
-
Planters, tillers, combines, hay balers, crop
dryers, tractors, and other farm machines and vehicles
-
Milking, and spray and irrigation equipment
-
Grain elevators
-
Wrenches, pliers, hammers, screwdrivers, and
other hand tools
-
Welding equipment and power tools
-
Micrometers, torque wrenches, and other precision
instruments
-
Computerized engine testing equipment, such as
dynamometers, engine analysis units, and compression testers
Skills and Qualifications
Successful candidates in this career area will possess and develop the
following skills and qualifications:
-
Problem-solving and computer skills
-
Knowledge of electronics and hydraulics
-
Ability to work independently with minimum
supervision
-
Knowledge of the basics of diesel engines and
transmissions
-
Mechanical aptitude
-
Ability to read circuit diagrams and blueprints
-
Ability to keep up with changing technology
-
Skill in computerized diagnostic equipment
<< Back to Top of Page
Mobile Heavy Equipment
Mechanic
MOBILE
HEAVY EQUIPMENT MECHANICS repair and maintain engines, transmissions,
hydraulics, and electrical systems. They work on power cranes,
bulldozers, graders, backhoes, railcars, stripping and loading shovels,
and other types of heavy equipment. They perform routine maintenance
checks on diesel engines and fuel, brake, and transmission systems, to
ensure peak performance, safety, and longevity of the equipment. If an
operator reports a malfunction, they search for its cause. With many
types of modern heavy and mobile equipment, mechanics can use hand-held
diagnostic computers to diagnose any part needing adjustment or repair.
First, mechanics inspect and operate equipment to diagnose the nature of
needed repairs. They may partially dismantle the engine and examine the
parts for damage or excessive wear. Mechanics repair, replace, clean,
and lubricate parts as necessary. In some cases, technicians calibrate
systems by typing codes into an onboard computer. After putting the
engine back together, technicians test the equipment to make sure it is
operating correctly.
Repairing
malfunctioning hydraulic components on certain types of equipment that
have scoops, shovels, log forks, or scraper blades is an important
responsibility of mobile heavy equipment mechanics. When the hydraulic
apparatus loses power, mechanics examine it for hydraulic fluid leaks.
They replace broken hoses or worn gaskets on fluid reservoirs, or may
replace a defective hydraulic pump.
Mobile
heavy equipment mechanics perform a variety of other types of repairs.
They find and correct electrical problems and replace defective
electronic parts. Mechanics may also take apart and repair crawler
undercarriages and track assemblies. They may weld broken body and
structural parts. Mechanics in some large shops specialize in one or two
types of work, such as hydraulics or electrical systems.
Employers
-
Federal, state, and local governments
-
Surface mine operators
-
Public utility companies
-
Logging camps and contractors
-
Heavy equipment rental and leasing companies
-
Machinery manufacturers
-
Airlines and railroads
-
Steel mills
-
Oil and gas field companies
SKILLS AND QUALIFICATIONS
Successful
candidates in this career area will possess and develop the following
skills and qualifications:
-
Mechanical aptitude
-
Basic mathematical skills
-
Basic understanding of scientific principles
-
Flexibility and the capacity to learn new skills
quickly
-
Ability to observe safety practices
-
Ability to work as part of a team
-
Ability to analyze problems
TOOLS AND TECHNOLOGY
-
Various mobile heavy equipment such as motor
graders, trenchers and backhoe, crawler loaders, and stripping and
loading shovels
-
Pliers, wrenches, screwdrivers, and various other
hand tools
-
Pneumatic wrenches and various other power tools
-
Welding and flame-cutting equipment
-
Jacks, hoists, and cranes
-
Micrometers and gauges
-
Tachometers and dynamometers
-
Ohmmeters, ammeters, and voltmeters
-
Hand-held computers and computerized testing
equipment
<< Back to Top of Page
Automotive and Heavy
Equipment Mechanic
Keeping automotive
and heavy equipment in good working condition is vital to the success of
military missions. Automotive and heavy equipment mechanics maintain and
repair vehicles such as jeeps, cars, trucks, tanks, and other combat
vehicles. They also repair bulldozers, power shovels, and other
construction equipment.
The services have about 45,000 automotive and heavy equipment mechanics.
Each year, they need new mechanics due to changes in personnel and the
demands of the field. After job training, mechanics begin repairing
equipment under the direction of a supervisor. In time, they have the
opportunity to supervise other workers and possibly manage repair shops,
motor pools, or maintenance units.
Employers
Military: army, navy, etc.
Civilian occupations
related to Automotive & Heavy Equipment Mechanic include:
Skills and Qualifications
Successful candidates in this career area will possess and develop the
following skills and qualifications:
-
Mechanical aptitude
-
Good work ethics
-
Dependability and
reliability
-
Ability to learn
new information
-
Interpersonal
skills
-
Ability to observe safety practices
-
Ability to work as part of a team
-
Ability to analyze problems
Technology and Training
Job
training consists of 8 to 29 weeks of classroom instruction. Training
length varies depending on specialty. Course content typically includes:
-
Engine repair and tune up
-
Troubleshooting mechanical and electrical
problems
-
Repairing and replacing body panels, fenders, and
radiators
-
Further training occurs on the job and through
advanced courses.
<< Back to Top of Page
|