Freightliner Coronado 132. Scheduled maintenance provides a key element for the safe operation of your vehicle. A proper maintenance program also helps to minimize downtime and to safeguard warranties. This maintenance manual provides information necessary for years of safe, reliable, and cost-efficient vehicle operation.
Freightliner Maintenance Manual. Perform the operations in this maintenance manual at scheduled intervals. Perform the pretrip and post-trip inspections, and daily/weekly/monthly maintenance, as outlined in the vehicle driver’s manual. Major components, such as engines, transmissions, and rear axles, are covered in their own maintenance and operation manuals, that are provided with the vehicle. Perform any maintenance operations listed at the intervals scheduled in those manuals. Your Freightliner Dealership has the qualified technicians and equipment to perform this maintenance for you. They can also set up a scheduled maintenance program tailored specifically to your needs. Optionally, they can assist you in learning how to perform these maintenance procedures.
Engine Drive Belt Inspection
Worn or loose drive belts may cause engine overheating or loss of alternator power. Excessive tension, or too little tension on the belt may result in excessive and premature belt wear or accessory bearing failure. Serpentine belts are retained by a belt tensioner that requires no tension adjustment. Replace the drive belt if any conditions described below are found. To inspect a belt, gently twist it to view the belt sidewalls and bottom.
Belt Tensioner Inspection
On belts equipped with a spring tensioner, belt tension is automatically adjusted. Check that the tensioner is holding tension on the belt by inserting the end of a breaker bar in the 1/2-inch square hole on the forward face of the tensioner, and rotating the tensioner away from the belt. When the breaker bar is slowly released, the tensioner should return to its original position. The tensioner should rotate smoothly with no binding. If not, see Group 01 of the 122SD and Coronado Workshop Manual for replacement instructions.