INSERT-VALVE 7C5349 - Caterpillar

At operating temperature, engine coolant is hot and under pressure. Hot coolant and hot components can cause severe burns. Do not allow hot coolant or hot components to contact the skin.
Note: In order to access the sampling valve, it may be necessary to use a portable access system (ladder, stair assembly, man lift, or other portable access system) that is suitable and compliant to local regulations.Obtain S O S samples as close as possible to the recommended sampling interval. In order to receive the full effect of S O S analysis, establish a consistent trend of data. In order to establish a pertinent history of data, perform consistent samplings that are evenly spaced. Supplies for collecting samples can be obtained from your Caterpillar dealer.
Prepare the machine for maintenance. Refer to Operation and Maintenance Manual, "Prepare the Machine for Maintenance".
Illustration 1 g01901085
Obtain a coolant sample through sampling valve (1) . Take the sample when the engine is cool and when the engine is operating at low idle.
Submit the sample for Level 2 S O S analysis.Refer to the following publications for S O S information:
Operation and Maintenance Manual, "S O S Information"
Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations", "S O S Services Analysis"
Special Publication, PEGJ0047, "How to Take a Good S O S Sample"
Special Publication, PEGJ0046, "S O S Services: Understanding Your Results"
Special Publication, PEHJ0191, "S O S Fluid Analysis"