Maintenance 141 Lubrication Chart notes Continued. 12 Coolant level: Add coolant if necessary. Only use pre-mixed clean water and antifreeze in a 50/50 mix. Add only the same type antifreeze, that is: extended life or standard. Manual transmission: Use a mineral or synthetic oil. Check oil level periodically. Level should be to the bottom of the inspection hole. 19 Auxiliary axle(s): If equipped with auxiliary lift axles use a lithium based grease with specification API NLGI No. 2. Also, lubricate the Brake, Cams, Slack adjuster and Tie-rod ends. 13 Steering assist cylinder: Use a lithium based grease with EP additives to specification API NLGI No. 2 to grease both ball joints.
14 Power steering fluid: Check the fluid in the reservoir with the dipstick. Add oil if necessary. Use ATF Dexron ® III. Change fluid every 150,000 miles (240,000 km). Change filter every year. Use a lithium based grease with specification API NLGI No. 2. 20 Rear axle: Check the oil level in the differential by removing the fill/level plug in the housing. The oil should be level with the bottom of the fill/level plug hole. Add oil if necessary. 21 Fifth wheel: The fifth wheel and slider assemblies should always be re-lubricated after steam cleaning or at least every 15,000 miles (24,000 km). 15 Front oil lubricated wheel bearings: There is no set change interval.
Change the oil (or grease) only in connection with work on the hub or if dirt is found in the lubrication. Use motor oil SAE 30. Lubricate both the right and the left wheel bearings. Note: A heavy coating of grease is recommended on the fifth wheel plate by using the grease fitting under the fifth wheel top plate or by direct application to the top of the plate. The fifth wheel can be greased with the trailer connected, by using the grease fittings under the top plate. Grease the support brackets trunnions through the fittings over the bracket pins. Grease the fittings at the saddle plate (1 each side) and the saddle plate lock pockets (1 each side). 16 Engine oil and filter:
For oil change see schedule on page 63 to page 67. 17 Windshield washer fluid level. 18 Automatic and manual transmission: Automatic transmission: Use Dexron ® III Automatic Transmission fluid. See the manufacturer’s Operator’s Manual for intervals and quantity. Note: See page 142 to page 146 for oil types.