Industry Training

ST38 Final Drive Systems (3 days)

The student is able to outline the diagnostic and repair procedures of drive train systems following manufacturers recommendations and safe work practices. Upon successful completion, the student is able to: Define the purpose and fundamentals of drive train systems. Describe the construction features of drive systems. Perform inspection and diagnostic procedures for drive train systems. Outline maintenance and repair procedures of drive train systems on mobile equipment.

Module Content:

1. Define the purpose and fundamentals of drive train systems.
   • differentials
   • final drives
   • power dividers
   • fundamentals enhancement
     • centrifugal force
     • linear movement
     • angular movement
     • lubricating oils, including temperature and load requirements
     • planetary gear sets
2. Describe the construction features of drive train system components.
   • differentials
     • single-and two-speed
     • standard
     • no-spin and locking
     • torsion
     • air shift
     • electrical shift
   • final drives
     • bevel gear
     • spiral gear
     • helical and hypoid gears
     • planetary
     • inboard and outboard
   • power dividers
3. Explain the principles of operation of drive train systems.
   • differentials
     • single-and two-speed
     • standard
     • no-spin and locking
     • torsion
     • air shift
     • electrical shift
   • final drives
     • bevel gear
     • spiral gear
     • helical and hypoid gear
     • planetary
     • inboard and outboard
   • power dividers
4. Perform inspection, testing, and diagnostic procedures following manufacturers recommendations and perform assigned operations for drive train systems.
   • inspect differentials, final drives, power drives, and check for:
     • gear contact patterns
     • gear backlash
     • bearing pre-load
   • diagnose component failures and determine potential causes for:
     • noises
     • wear
     • malfunctions
     • shift problems
     • overheating
     • lack of proper lubrication
5. Recommend reconditioning or repairs following manufacturers recommendations and perform assigned operations for drive train systems.
   • perform a demonstration of:
     • lubricating oil level checks
     • seal replacement procedures
     • mechanical face-type seal
     • bearing service
     • adjustment procedures

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