Agreement. These Machinery Sales Agreement Terms and Conditions and the. With our free Sales Agreement form, you'll be ready to print or download your contract in no time.When buying a vehicle or equipment for your business, use this Vehicle and Equipment Purchase Agreement to protect yourself from unwarranted liabilities. How to fill out the Equipment Bill of Sale Agreement Form? 1. Enter the buyer's name and contact information. 2. An equipment purchase and sale agreement is an agreement between a seller and purchaser of equipment that sets the terms of the arrangement.