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Maintenance Section (D6T LGP (OEM)) WEBM1000
Cooling System Coolant Sample (Level 2) - Obtain
• Keep the lids on empty sampling bottles until you
are ready to collect the sample.
• Place the sample in the shipping sleeve
im
mediately after obtaining the sample in order to
avoid contamination.
• Never collect samples from expansion bottles.
• Never collect samples from the drain for a system.
165
Illustration 165
Location of coolant sampling port
1. Park the machine on a hard, level surface. Set
the engine at low idle speed.
2. Open the left engine compartment. Remove the
protec
tive cap from the sampling valve.
3. Obtain a sample. For additional information
about co
olant analysis, see Special Publication,
SEBU6250 “Caterpillar Machine Fluids
Recommendations” or consult your Caterpillar
dealer.
4. Rep
lace the protective cap. Close the left side
e
ngin
e com
partment.
Submit the sample for Level 1 analysis.
Note: Level 1 results may indicate a need for
Level 2
Analysis.
Level 2 is a comprehensive analysis which should
be perfo
rmed annually. See Operation and
Maintenance Manual, “Cooling System Coolant
Sample (Level 2) - Obtain” for more information.
Cooling System Coolant
Sample (Level 2) - Obtain
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
wh
en engine is stoppe
d and radiator cap is cool
enough to touch with your bare hand.
Do not attempt to tighten hose connections when
t
he coolant
is hot, the hose can come off causing
burns.
Cooling System Conditioner contains alkali.
Avoid contact with skin and eyes.
NOTICE
Always use a designated pump for oil sampling, and
use a separ
ate 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.
NOTICE
Care must be taken to ensure that fluids are
containe
d 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, N
ENG2500 “Dealer
Serv
ice 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.