CAT 3412C - Cooling System Coolant Sample (Level 1) Obtain

Illustration 97 g00103639
Typical filler cap gaskets
3. Clean the cooling system filler cap and check the
condition of the filler cap gaskets. Replace the
cooling system filler cap if the filler cap gaskets are
damaged. Reinstall the cooling system filler cap.
4. Inspect the cooling system for leaks.
i04035949
Cooling System Coolant
Sample (Level 1) - Obtain
SMCS Code: 1350-008; 1395-008; 1395-554; 7542
Note: Obtaining a Coolant Sample (Level 1) is
optional if the cooling system is filled with Cat
ELC (Extended Life Coolant). Cooling systems
filled with Cat ELC should have a Coolant Sample
(Level 2) that is obtained at the recommended
interval as stated in the maintenance interval
schedule.
Note: Obtain a Coolant Sample (Level 1) if the
cooling system is filled with any other coolant
instead of Cat ELC including the following
coolants:
• Commercial long life coolants that meet the
Caterpillar Engine Coolant Specification -1
(Caterpillar EC-1)
• Cat DEAC (Diesel Engine Antifreeze/Coolant)
• Commercial heavy-duty coolant/antifreeze
Table 19
Recommended Interval
Type of Coolant
Level 1 Level 2
(continued)
(Table 19, contd)
Cat DEAC
Every 250 service
hours
Every year
(1)
Conventional heavy
duty-coolant
Commercial coolant
that meets the re-
quirements of the
Caterpillar EC-1
standard
Cat ELC or conven-
tional EC-1 coolant
Optional Every year
(1)
(1)
The Level 2 Coolant Analysis should be performed sooner if a
problem is suspected or identified.
NOTICE
Always use a designated pump for oil sampling, and
use a separate designated pump for coolant sam-
pling. Using the same pump for both types of sam-
ples may contaminate the samples that are being
drawn. This contaminate may cause a false analysis
and an incorrect interpretation that could lead to con-
cerns by both dealers and customers.
Note: Level 1 results may indicate a need for
Level 2 Analysis.
Obtain the sample of the coolant 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.
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 mailing tube 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.
Submit the sample for Level 1 analysis.
SEBU7125-13
113
Maintenance Section
Cooling System Coolant Sample (Level 1) - Obtain