Service manual indicates number of lubrication fittings and their locations. Instructions for engineers; refer to your manual frequently. Manufacturer is expert on maintenance. Check your inventory often to ensure frequently used parts are in stock. Avoid downtime by having a back stock of necessary parts. Close-up of manual. Pans down service manual. Close-up of manual cover. Shot of workers in factory, checking inventory of parts. Man uses tool, machine. Close up of sigh that says “Prevent that Fire.”