Draining Cooling System

Every two years or 800 hours, drain cooling system by opening drain on radiator (A) and engine block (B). Open breather valve (C) on top of engine block to allow coolant to drain faster.

AG,OUZXMAY,439 -19-04DEC99-1/2

Remove hose (A) from bottom of recovery tank and drain tank.

Close drains, install hose on recovery tank and fill system with clean water.

Run engine until it reaches operating temperature with heater on.

Stop engine and drain water out before rust or sediment settles.

Close drains and refill system with a solution of clean water and John Deere Cooling System Cleaner PT500 or its equivalent. Follow instructions with cleaner.

After using cleaner, flush system with clean water and drain.

Close drains, close and latch rotary screen door and fill system with correct coolant and conditioner. See the recommendations given in "Fuel, Lubricants, Coolant and Capacities" Section.

Open breather valve on top of engine.

Fill system until fluid begins to run out of breather valve. Close breather valve and finish filling system until fluid is at fill mark on recovery tank.

Install cap on radiator and run engine until it reaches operating temperature.

Remove cap from recovery tank and refill tank to fill mark. Do not fill recovery tank from radiator. Install cap on recovery tank.

AG,OUZXMAY,439 -19-04DEC99-2/2