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Personal injury can result from hot coolant, steam and alkali. At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns. Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand. Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns. Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes. |
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| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Dispose of all fluids according to local regulations and mandates. |
See the appropriate topics in your machine's Operation and Maintenance Manual for all cooling system requirements.
Use 366 077.0 Test Group to check the concentration of the coolant.
If necessary, add supplemental coolant additive.
| NOTICE |
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Do not exceed the recommended six percent supplemental coolant additive concentration. Excessive supplemental coolant additive concentration can form deposits on the higher temperature surfaces of the cooling system, reducing the engine's heat heat transfer characteristics. Reduced heat transfer could cause cracking of the cylinder head and other high temperature components. Excessive supplemental coolant additive concentration could also result in radiator tube blockage, overheating, and/or accelerated water pump seal wear. Never use both liquid supplemental coolant additive and the spin-on element (if equipped) at the same time. The use of those additives together could result in supplemental coolant additive concentration exceeding the recommended six percent maximum. |
- Park the machine on a hard, level surface. Allow the engine to cool and allow the radiator to cool.
- Raise the hood in order to access the radiator.
Note: See Operation and Maintenance Manual, "Engine Compartment Hood - Raise/Lower".
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| Illustration 1 | g00468687 |
- Coolant should be visible in the coolant recovery bottle. Drain some coolant from the radiator into a suitable container in order to allow space for the extra coolant additive. Add supplemental coolant additive.
Note: Always discard drained fluids according to local regulations.
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| Illustration 2 | g00388695 |
- Add 0.24 L (.50 pint) of supplemental coolant additive.
- Inspect the filler cap gasket. Replace the filler cap if the gasket is damaged.
- Install the filler cap.