Final answer:
When conducting preventative maintenance checks on the clutch housing mounting, you should check all mounting bolts of the clutch-housing flange for looseness.
Step-by-step explanation:
When conducting preventative maintenance checks on the clutch housing mounting, you should check all mounting bolts of the clutch-housing flange for looseness. These bolts can gradually become loose due to the vibrations and stress experienced by the clutch system during operation.
Inspecting for loosened bolts is important because if the mounting bolts are not tightened properly, it can result in misalignment of the clutch housing, which can lead to clutch slippage or other mechanical issues. To prevent this, it is necessary to regularly check and tighten the mounting bolts to ensure the clutch housing remains securely attached.