Question

for specific details on what needs to be checked on a given machine, refer to the _____.
the companys procedures manual
vehicles o&m manual
manufacturers web site
vendors sale brochure

Explanation:

An O&M (Operations and Maintenance) manual for a vehicle/machine is specifically created to provide detailed, model-specific instructions for inspection, operation, and upkeep. Company procedures manuals are general to the business, manufacturer websites may not have tailored checklists, and sales brochures are for marketing, not maintenance details.

Answer:

vehicle's O&M manual