Debtor will keep the Collateral in good order and repair, and will not use the same in violation of law or any policy of insurance thereon or permit any Collateral to be attached or otherwise affixed to any real estate so as to become a fixture under the law of the jurisdiction in which such real estate is located or to any goods not owned by Debtor. Debtor will pay promptly when due all taxes and assessments upon the Collateral or for its use or operation or upon this agreement.