24 Motor Grader (N9Z)

Course Date

Coming Soon

Course Length



Course Length: 3 days (10 hrs/day)
24 Product Course for serial prefix N9Z.

PPE Required

Students must provide their own safety glasses, steel toed footwear, hard hats and fire retardant coveralls with reflective stripe.


CLC/SIS/ET, S2 Engine Systems, S4 Electrical Systems, and Machine Electronic Controls (MEC).


After completion of the course the participant will be able to: 
  • Identify and explain functions of operator controls.


  • Identify sensors and describe operation.

  • Trace fuel flow and identify /explain operation and function.

  • Inlet and exhaust flow.

  • Be able to explain how to pin TDC #1, perform valve set and injector timing.

  • Explain function and operation of compression brake.

  • Explain engine control functions ie: derates , low voltage, cold engine idle.

  • Identify and have understanding of the T4 components related to the C27 engine.

Power Train:

  • Identify power train components.

  • Trace oil flow paths.

  • Describe operation of lockup torque convertor.

  • Explain operation of ECPC transmission and when to perform calibrations.

  • Pressure test and perform calibrations.

Hydraulic and Steering Systems:

  • Explain function of electrohydraulic valve.

  • Understanding of PPPC hydraulic systems.

  • Proper set up of variable displacement pump.

  • Understanding of the resolver network on the 24M motor grader.

  • Ability to understand hydraulic schematic ISO symbols.

  • Pressure test and perform calibrations, ie: margin pressure, signal relief, high pressure.

Brake and Fan Systems:

  • Identify and explain operation and function of brake/fan system components.

  • Explain how to safely service the brake /fan system.

  • Ability to test the brake system, properly charge accumulators.

  • Calibrate and adjust fan speed and margin pressure.

Successful completion of a written examination with a passing grade of 80%.