953C Track-Type Loader Cooling System Extended Life Coolant - Change Caterpillar


Cooling System Extended Life Coolant - Change
`
1.1. Draining the Coolant System

------ WARNING! ------

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.



NOTICE

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.



NOTICE

Mixing ELC with other products reduces the effectiveness of the ELC and shortens the ELC service life. Use only AVSpare products or commercial products that have passed the AVSpare EC-1 specification for premixed or concentrate coolants. Use only AVSpare ELC Extender with AVSpare ELC. Failure to follow these recommendations can result in shortened cooling system component life.


Some engines utilize Extended Life Coolant (ELC).

Reference: See the Operation and Maintenance Manual, "Maintenance Interval Schedule" for the proper service interval.

If an ELC was previously used, flush the cooling system with clean water. No other cleaning agents are required.

Change the engine coolant more frequently if you find any of the following conditions:

  • The cooling system is heavily contaminated.

  • The engine overheats.

  • You observe foaming in the radiator.

  • Fuel has contaminated the cooling system.

  • The cooling system contains non-AVSpare products.

It is important to replace the water temperature regulator in order to avoid unexpected failure. This is a good preventive maintenance practice that reduces the chances of unscheduled downtime.


NOTICE

Operating a machine with a faulty temperature regulator can cause severe engine damage due to overheating of the engine or overcooling of the engine.



NOTICE

Failure to replace the water temperature regulator on a regularly scheduled basis could cause severe engine damage.


Note: In a situation that only requires the water temperature regulator to be replaced, drain the coolant from the cooling system so that the level of the coolant is below the regulator housing.

Draining the Coolant System



    Illustration 1g00953490

  1. Slowly loosen the radiator cap in order to relieve system pressure. Remove the radiator cap.


    Illustration 2g00991973

  2. The access plate for the drain hose is located at the rear of the machine under the bottom radiator guard. Remove the bolts and the access plate.

  3. Pull the drain hose for the radiator from the opening.

  4. The drain valve is under the radiator. Open the drain valve. Allow the coolant to drain into a suitable container.

  5. Close the drain valve. Fill the system with a solution which consists of clean water and of cooling system cleaner. The concentration of the cooling system cleaner should be 6 to 10 percent.

  6. Start the engine. Run the engine for 90 minutes. Stop the engine. Drain the cleaning solution into a suitable container.

  7. While the engine is stopped, flush the system with water. Flush the system until the draining water is clear.

  8. Close the drain valve. Replace the drain hose and the access plate.

  9. Add the coolant solution.

  10. Start the engine. Run the engine without the radiator cap until the thermostat opens and the coolant level stabilizes.

  11. Maintain the coolant level within 13 mm (.5 inches) of the bottom of the filler pipe.

  12. If the gasket is damaged, replace the radiator cap. Install the radiator cap.

  13. Stop the engine.

Information System:

Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
CAES Installation For Wheel Tractor Scraper{7604}
CAES Installation For Wheel Loader{7604}
953C Track-Type Loader Engine Starting with Jump Start Cables
D6N Track-Type Tractor Power Train Axle - Remove and Install
D6N Track-Type Tractor Power Train Steering Differential and Brake - Assemble
966G Series II Wheel Loader and 972G Series II Wheel Loader Hydraulic System Hydraulic System Troubleshooting
3054E Industrial Engine Flywheel - Install
938G Wheel Loader and IT38G Integrated Toolcarrier Reference Material
938G Wheel Loader and IT38G Integrated Toolcarrier Seat
963C Track-Type Loader Power Train Transmission Stall - Test
AD30 Underground Articulated Truck Hydraulic System Oil Filter (Pilot) - Replace
953C Track-Type Loader Cooling System Water Temperature Regulator - Clean/Replace
953C Track-Type Loader Engine Oil Sample - Obtain
AD30 Underground Articulated Truck Service Inspection
TH560B Telehandler Lifting Capacities
D6N Track-Type Tractor Power Train Steering Differential and Brake - Disassemble
D6N Track-Type Tractor Power Train Final Drive, Steering Differential, and Brake (Left Side) - Remove
D6N Track-Type Tractor Power Train Final Drive, Steering Differential, and Brake (Left Side) - Install
3126B Engine for Caterpillar Built Machines Sensors and Electrical Connectors
D6N Track-Type Tractor Power Train Priority Valve - Disassemble
D6N Track-Type Tractor Power Train Priority Valve - Assemble
Repair of Cracks in the Rear Track Roller Frame{4151}
C-9 Engine for the 973C Track-Type Loader Engine Will Not Crank