631E Series II Wheel Tractor-Scrapers Caterpillar

Clean the oil cooler and clean the radiator at the same time. Clean the oil cooler in the same manner as you clean the radiator.

You can use compressed air, high pressure water, or steam to remove dust and other debris from the radiator core. However, the use of compressed air is preferred.

Note: Care must be taken when you are using high pressure water. High pressure water can cause damage to the radiator. Use of a water spray nozzle on the pressure washer which will disperse the water pressure is preferred.

Note: At the same interval, clean the air conditioner condenser.