LEBrown59
Again, the laws in Canada are not applicable in the United States. In fact, the insurance and lending laws MAY very somewhat from state to state in the United States. To answer your question, you can add the tractor to your homeowners policy, but to get the type of coverage that the lender wants the owner has to get a seperate ryder for the tractor. He does not need to have a seperate policy.
Other than that, there are too many facts that we don't know. Nevertheless, the lender can require that the tractor be insured against theft, fire and comprehensive damage occuring while in use.
Other than that, this type of issue is not something that can be answered in this setting. He needs to get is agent and his banker together and let them try to work something out.