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Maintenance Section
Cooling System Coolant
Sample (Level 1) - Obtain
NOTICE
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.
Note: Level 1 results may indicate a need for
Level 2 Analysis.
Illustration 221 g01081068
Refer to the Operation and Maintenance Manual,
"Access Doors and Covers" for the location of the
service points.
Obtain the sample of the coolant as close as possible to
the recommended sampling interval. In order to
receive the full effect of SOS analysis, you must
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.
Use the following guidelines for proper sampling of the
coolant:
• Keep the unused sampling bottles stored in plastic
bags.
• Keep the lids on empty sampling bottles until you are
ready to collect the sample.
• Complete the information on the label for the
sampling bottle before you begin to take the
samples.
• Use a designated pump to collect the sample in
order to avoid contamination.
• Obtain coolant samples directly from the coolant
tank. You should not obtain the samples from any
other location.
• Place the sample in the mailing tube immediately
after obtaining the sample in order to avoid
contamination.
• Never collect samples from the drain for a system.
Submit the sample for Level 1 analysis.
For additional information about coolant analysis, see
the appropriate Service Manual or consult your
Caterpillar dealer.
Cooling System Coolant
Sample (Level 2) - Obtain
NOTICE
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.
Illustration 222 g01081068
Refer to the Operation and Maintenance Manual,
"Access Doors and Covers" for the location of the
service points.
Obtain the sample of the coolant as close as possible to
the recommended sampling interval. Supplies for
collecting samples can be obtained from your
Caterpillar dealer.
Refer to Operation and Maintenance Manual, "Cooling
System Coolant Sample (Level 1) - Obtain" for the
guidelines for proper sampling of the coolant.
Submit the sample for Level 2 analysis.
For additional information about coolant analysis, see
the appropriate Service Manual or consult your
Caterpillar dealer.