Among those acts presumed to constitute tampering are the acts listed below:

m2+ m 00.11.000
  1. Removal of engine noise-deadening panels, including cab or hood liners.
  2. Removal of or rendering inoperative the engine speed governor so as to allow engine speed to exceed the manufacturer's specifications.
  3. Removal of or rendering inoperative the fan clutch, including bypassing the control on any thermostatic fan drive to cause it to operate continuously.
  4. Removal of the fan shroud.
  5. Removal of or rendering inoperative exhaust system components, including exhaust pipe clamping.
  6. Removal of air intake system components.
Note:
Document Number: 0000118828
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-11-06