STG global TANVAC HDV3000, Operator'S Manual

Page: 86 / 329

Refer to Special Publication, SEBU6251, “Caterpillar
Commercial Diesel Engine Fluids
Recommendations” for additional information that
relates to coolant.
S·O·S Coolant Analysis
Table 23
Recommended Interval
Type of
Coolant
Level 1 Level 2
DEAC
Every 250 Hours Yearly
(1)
ELC
Not Required Yearly
(1)
The Level 2 Coolant Analysis should be performed sooner if a
problem is identified by a Level 1 Coolant Analysis.
S·O·S Coolant Analysis (Level 1)
A coolant analysis (Level 1) is a test of the properties
of the coolant.
The following properties of the coolant are tested:
• Glycol concentration for freeze protection and boil
protection
• Ability to protect from erosion and corrosion
• pH
• Conductivity
• Visual analysis
• Odor analysis
The results are reported, and appropriate
recommendations are made.
Refer to the Maintenance Interval Schedule in this
Operation and Maintenance Manual, “Cooling
System Coolant Sample (Level 1) - Obtain” for a
sampling location and the maintenance interval for
collecting the coolant samples.
S·O·S Coolant Analysis (Level 2)
A coolant analysis (Level 2) is a comprehensive
chemical evaluation of the coolant. This analysis is
also a check of the overall condition of the inside of
the cooling system.
The S·O·S Coolant Analysis has the following
features:
• Full coolant analysis (Level 1)
• Identification of the source of metal corrosion and
of contaminants
• Water hardness
• Identification of buildup of the impurities that
cause corrosion
• Identification of buildup of the impurities that
cause scaling
The results are reported, and appropriate
recommendations are made.
Refer to the Maintenance Interval Schedule in this
Operation and Maintenance Manual, “Cooling
System Coolant Sample (Level 2) - Obtain” for a
sampling location and the maintenance interval for
collecting the coolant samples.
Testing the engine coolant is important to ensure that
the engine is protected from internal cavitation and
from corrosion. The analysis also tests the ability of
the coolant to protect the engine from boiling and
from freezing. The S·O·S Coolant Analysis can be
done at your Caterpillar dealer. Caterpillar S·O·S
Coolant Analysis is the best way to monitor the
condition of your coolant and your cooling system.
S·O·S Coolant Analysis is a program that is based on
periodic samples.
Refer to Special Publication, SEBU6251, “Caterpillar
Commercial Diesel Engine Fluids
Recommendations” for additional information.
Refill Capacity of the Cooling
System
To maintain the cooling system, the Total Cooling
System capacity must be known. The approximate
capacity for the
“
Engine Only
”
cooling system is
listed. External System capacities will vary among
applications. Refer to the OEM specifications for the
External System capacity. This capacity information
will be needed in order to determine the amount of
coolant that is required for the Total Cooling System.
Table 24
C0.5 Engine
Approximate Refill Capacities
Compartment or System
Liters Quarts
Engine Only
1.1 1.2
External System (OEM)
(1)
Total Cooling System
(2)
(1)
The External System includes a radiator or an expansion tank
with the following components: heat exchanger, aftercooler and
piping. Enter the capacity for the External System in this row.
Refer to either Caterpillar specifications or OEM specifications
for further information.
(2)
The Total Cooling System includes the capacity for the
“
Engine
Only
”
plus the capacity for the External System. Enter the total
in this row.
SEBU8312-03 49
Maintenance Section
Refill Capacities and Recommendations