X hits on this document

PDF document

TEST SPECIFICATIONS AND TASK LISTS FOR THE NATIONAL AUTOMOTIVE STUDENT SKILLS STANDARDS ASSESSMENT - page 4 / 9

13 views

0 shares

0 downloads

0 comments

4 / 9

6.

Inspect coolant conditioner/filter assembly for leaks; inspect valves, lines, and fittings; replace as needed.

  • 7.

    Inspect water pump and hoses; replace as needed.

  • 8.

    Inspect, clean, and pressure test radiator, pressure cap, tank(s), and recovery systems; determine

needed action.

9.

Inspect thermostatic cooling fan system (hydraulic, pneumatic, and electronic) and fan shroud; replace as needed.

  • F.

    Air Induction, Exhaust Systems and Engine Brakes

    • 1.

      Perform air intake system restriction and leakage tests; determine needed action.

    • 2.

      Perform intake manifold pressure (boost) test; determine needed action.

    • 3.

      Perform exhaust back pressure test; determine needed action.

    • 4.

      Inspect turbocharger(s), wastegate, and piping systems; determine needed action.

    • 5.

      Inspect and test turbocharger(s) (variable ratio/geometry VGT), pneumatic, hydraulic, electronic

controls, and actuators.

6.

Check air induction system: piping , hoses, clamps, and mounting; service or replace air filter as needed.

  • 7.

    Remove and reinstall turbocharger/wastegate assembly.

  • 8.

    Inspect intake manifold, gaskets, and connections; replace as needed.

  • 9.

    Inspect, clean, and test charge air cooler assemblies; inspect aftercooler assemblies; replace as

needed.

  • 10.

    Inspect exhaust manifold, piping, mufflers, and mounting hardware; repair or replace as needed.

  • 11.

    Inspect exhaust after treatment devices; determine necessary action.

  • 12.

    Inspect and test preheater/inlet air heater, or glow plug system and controls; perform needed action.

  • 13.

    Inspect and test exhaust gas recirculation (EGR) system including EGR valve, cooler, piping, filter,

electronic sensors, controls, and wiring; determine needed action.

  • 14.

    Inspect and adjust engine compression/exhaust brakes; determine needed action.

  • 15.

    Inspect, test, and adjust engine compression/exhaust brake control circuits, switches, and solenoids;

repair or replace as needed.

16. Inspect engine compression/exhaust brake housing, valves, seals, lines, and fittings; repair or replace as needed.

  • G.

    Fuel System

    • 1.

      Fuel Supply System

    • 1.

      Check fuel level, and condition; determine needed action.

Effective: January 2010

4

Document info
Document views13
Page views13
Page last viewedMon Nov 07 11:34:08 UTC 2016
Pages9
Paragraphs398
Words2550

Comments