Testing Coolant

1. CAUTION: Explosive release of fluids from pressurized cooling system can cause serious burns.

   Shut off engine. Only remove cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

   
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   Raise hood.

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2. Slowly turn de-aeration tank cap to relieve pressure. Remove cap.

   NOTE: De-aeration tank will not be full of coolant when cap is removed. When inspecting tank, if it is at least half full, do not add additional coolant.

3. Test coolant using COOL-GARD™II 3-way test strips available from your John Deere™ dealer.

4. NOTE: Follow instructions on back of reader card in test strip pack when testing coolant.

   Add COOL-GARD II Coolant Extender available from your John Deere dealer as indicated by the color matrix on reader card in test strip pack. If tank is too full, drain a small amount of coolant from system before extender is added.

5. Install de-aeration tank cap and lower hood.