
100 SEBU8213-04
Maintenance Section
Cooling System Coolant Level - Check
Table 13
Calculation of ELC Extender
V
(1)
×0.02=X
(2)
(1)
V is the total volume of the c ooling system.
(2)
X is the amount of ELC Extender that is required.
For additional information about adding an extender,
see Special Publication, SEBU6250, “Caterpillar
Machine Fluids Recommendations”, “Extended Life
Coolant (ELC)” or consult your Caterpillar dealer.
i02801616
Cooling System Coolan t Level
- Ch eck
SMCS Code: 1353; 1354; 1395; 7520
1. Open the left engine access door.
g01260015
Illustration 129
2. Maintain the coolant level between minimum mark
(B) and maximum mark (A) on expansion tank (2).
If you need to add coolant daily, check the cooling
system for leaks.
3. Close the left engine access door.
i02806920
Coo ling S ystem Coo lant
Sample (Level 1) - Obtain
SMCS Code: 1395-554
Note: It is not necessary to obtain a Coolant
Sample (Level 1) if the cooling system is filled
with C at ELC (Extended Life Coolant). Cooling
systems that are filled with Cat ELC should have
a Coolant Sample (Level 2) that is obtained at
the recommended interval that is stated in the
Maintenance Interval Schedule.
Note: O btain a C
oolant Sample (Level 1) if t he
cooling system is filled with any other coolant
instead of Cat ELC. This includes the following
types of coola
nts.
•
Commercial long life coolants that meet the
Caterpillar
Engine Coolant Specification -1
(Caterpillar “EC−1”)
•
Cat Diesel E
ngine Antifreeze/Coolant (DEAC)
•
Commercial heavy-duty antifreeze/coolant
NOTICE
Always use a designated pump for oil sampling, and
use a separate designated pump for coolant sampling.
Using the s
ame pump for both types of samples may
contaminate the samples that are being drawn. This
contaminate may cause a false analysis and an incor-
rect inte
rpretation that could lead to concerns by both
dealers and customers.
Note: Level 1 results may indicate a need for
Level 2 A
nalysis.
g01260015
Illustration 130
1. Open the left engine access door.
2. Open the access panel on top of the engine
compartment.
3. The cooling system pressure cap (1) is located on
the top of expansion tank (2). Remove the cooling
system pressure cap slowly in order to relieve
system pressure.
4. Obtain the coolant sample from the top tank and
collect the sample into the proper sampling bottle.
Note: Always discard drained fluids according to
local regulations.