HOSE AS 3987199 - Caterpillar

APPROACH AREASDo not approach line within 300 ft. (91.4 m) from the side on within 15 ft (4.6 m) from the front, rear or above.
Wheel coolant is provided in Caterpillar wheel tractor-scrapers (all except 613, 621, 623, 627) in which excessive brake application could cause burned tire beads. The coolant minimizes heat transfer from brakes through the rim and to the tire bead on these machines. The coolant must be of the recommended type and concentration be at the proper level to be effective. The recommended coolant solution is 20% mixture of ethylene glycol type antifreeze and 80% water. Oil or any other fluid other than that recommended should never be used as a wheel coolant. The coolant level should be checked at least every 1000 hours as recommended in the Lubrication and Maintenance Guides for the machines. In addition on earlier machines which require the removal of a brake drum stud to add or check coolant level, cooling system sealant should be added every 2000 hours.