TUBE A 8J7719 - Caterpillar

Level 2 Analysis
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 filler cap slowly to relieve pressure only when engine is stopped and radiator 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 Conditioner contains alkali. Avoid contact with skin and eyes.
Always use a designated pump for oil sampling, and use a separate designated pump for coolant sampling. Using the same pump for both types of samples may contaminate the samples that are being drawn. This contaminate may cause a false analysis and an incorrect interpretation that could lead to concerns by both dealers and customers.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Testing the coolant can be done at your Caterpillar dealer. Caterpillar S O S Coolant Analysis is the best way to monitor the condition of your coolant and your cooling system. S O S Coolant Analysis is a program that is based on periodic samples. See Operation and Maintenance Manual, SEBU6250, "Cooling System Specifications", "General Coolant Information" for more information.Use the following guidelines for proper sampling of the coolant:
Complete the information on the label for the sampling bottle before you begin to take the samples.
Keep the unused sampling bottles stored in plastic bags.
Obtain coolant samples directly from the coolant sample port. You should not obtain the samples from any other location.
Keep the lids on empty sampling bottles until you are ready to collect the sample.
Place the sample in the shipping sleeve immediately after obtaining the sample in order to avoid contamination.
Never collect samples from expansion bottles.
Never collect samples from the drain for a system.Procedure for Obtaining Coolant Sample
Illustration 1 g03761439
Coolant sampling valve
Park the machine on a hard, level surface. Set the engine at low idle speed. Set the parking brake
Open the left-hand engine access door. Remove the protective cap from the sampling valve.
Obtain a coolant sample while the engine is running and at the correct operating temperature. For additional information about coolant analysis, see Operation and Maintenance Manual, SEBU6250, "Cooling System Specifications", "General Coolant Information" or consult your Caterpillar dealer.
Replace the protective cap. Close the engine access door. Submit the sample for Level 2 analysis.