Course Description

ENGINE SYSTEMS

5

20

20

Engine

Check engine operation; record idle and governed rpm

Inspect vibration damper

Inspect belts, tensioners, and pulleys

Check engine oil level; check engine for oil, coolant, and fuel leaks (engine off)

Inspect engine mounts for looseness and deterioration

Check engine for oil, coolant, air, and fuel leaks (engine running)

Check electrical wiring, routing, and hold-down clamps

Fuel System

Check fuel tanks, mountings, lines, and caps

Inspect throttle linkages and return springs

Replace fuel filter(s); prime and bleed fuel system

Air Induction and Exhaust System

Check exhaust system mountings for looseness and damage

Check engine exhaust system for leaks, restrictions, and damage

Check air induction system:  piping, charge air cooler, hoses, clamps, and mountings; check for air restrictions and leaks

Inspect turbocharger for leaks; check mountings and connections

Inspect engine/exhaust brake

Cooling System

Check operation of fan clutch

Inspect radiator and mountings

Inspect fan assembly and shroud

Pressure test cooling system and radiator cap

Inspect coolant hoses and clamps

Inspect coolant recovery system

Check coolant for contamination; determine coolant conditioner (additive package) concentration and protection level (freeze point)

Service coolant filter/conditioner

Lubrication System

Change engine oil and filters; visually check oil for coolant or fuel contamination

Take an engine oil sample

Gasoline Engine Emission Control Systems

Inspect positive crankcase ventilation (PCV) valve and system components

Inspect emission control systems to include exhaust gas recirculation (EGR), secondary air injection (AIR), air inlet temperature control, early fuel evaporation (EFE), and fuel evaporation systems

CAB AND HOOD AREAS

5

10

20

Instruments and Controls

Identify instruments and controls

Inspect key condition and operation of ignition switch

Check warning lamps and/or alarms

Check instruments; record oil pressure and voltage

Check hand throttle, power take off (PTO), and manual engine shut down operation

Check air conditioning (A/C), heater, and defroster operation

Check operation of all accessories

Safety Equipment

Check operation of electric air horns and back-up warning devices

Check condition and documentation of safety flares, spare fuses, triangles, fire extinguisher and all required decals

Inspect seat belts and sleeper restraints

Inspect wiper blades and arms

Hardware

Check wiper and washer operation

Inspect windshield glass for cracks or discoloration; check sun visor

Check seat condition, operation, and mounting

Check door glass and window operation

Inspect steps and grab handles

Inspect mirror mountings, brackets, and glass

Record all observed physical damage

Lubricate all grease fittings

Inspect and lubricate door and hood hinges, latches, strikers, and linkages, and cables

Inspect tilt cab mountings, hinges, latches, linkages and cables, and ride height

Inspect tilt cab hydraulic cylinders for leakage

Heating, Ventilation, and Air Conditioning (HVAC)

Inspect A/C condenser and lines for condition and visible leaks; check mountings

Inspect A/C compressor and lines for condition and visible leaks; check mountings