797F OHT

Course Date

Coming Soon

Course Length



Course Length: 3 days (10 hrs/day)
Provides basic maintenance information and describes the systems operation of the VIMS 3G monitoring system, engine and fan system for the 797F Off- highway Truck. Also describes the system operation of the power train, steering, hoist, brake [including the Automatic Retarder Control (ARC) and the Traction Control System (TCS)], and air system for the797F Off-highway Truck.

PPE Required

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


S levels and MEC.


After completion of the course the participant will be able to:

  • Locate and identify all of the major 797F LMT components 

  • Perform diagnostics in the Engine, Transmission/Chassis ECM and Brake Electronic Control systems using the Caterpillar Monitoring System and the Electronic Technician (ET) diagnostics tool.

  • Perform and interpret transmission/torque converter, steering, hoist, and brake performance tests.

  • C175 ACERT Engine sensor and component locations, coolant, oil and fuel flows.

  • SCR Component identification for Tier 4 trucks.

  • Transmission/Chassis Electronic Control System.

  • ECPC Hydraulic Transmission Control, pressure testing and diagnostics.

  • Steering System, pressure testing, operation, and schematic reading.

  • Electronically Controlled Hoist System, function operation, and testing.

  • VIMS 3G and Advisor basic operation and downloading.

  • Brakes, operation, air system, and hydraulic system.

  • Brake Electronic Control System - Auto Retarder Control (ARC), and Traction Control System (TCS).

  • Truck Production Management System (TPMS) Systems, and calibration.