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Functions of Coolant/Antifreeze
- Removes Heat
- Prevents Boiling and Freezing
- Prevents Scaling and Corrosion
- Prevents Wet Sleeve Cavitation in Diesel Engines
Types of Glycol
- Ethylene Glycol
- Propylene Glycol
Suggested Water Quality Limits
- Total Solids
- Total Hardness
- Chlorides
- Sulphates
- pH
Groups of Coolants
- Group 1 - Traditional
- Group 2 - OAT (Organic Acid Technology)
- Group 3 - Hybrid
Types and Functions of Coolant Additives
- Silicate
- Nitrite
- Nitrate
- Phosphate
- Borate
- Molybdate
- Carboxylates
- Dicarboxylates
- Mercaptobenzothiazole (MBT)
- Tolytriazole (TT)
- Silicones
- Block Polymers
- Dispersants
- Surfactants
Cooling System Problems
- Stray Current
- Positive Voltage
- Negative Voltage
- Localized Overheating
- Exhaust Gas Blow-by
Cooling System Degradation
- Erosion
- Corrosion
- Electrolysis
Characteristics of Coolant System Deposits
- Iron Deposit
- Carbonate Deposit
- Silica Deposit
- Sulphate Deposit
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Water Properties That Produce Acid
- Acid Processes
- Chloride
- Sulphate
- Conductance
Engine Problems Due to Acid
- Wet Sleeve Liner Pitting
- Radiator Pitting
- Oil Cooler Pitting
- Pump Damage
pH Concerns
Benefits of Coolant Analysis
- Fluid Condition
- Component Failure
- Predictive Maintenance
- Management Practices
Coolant Test Program
- Level 1 Test - Basic Coolant Analysis
- Visual Observations
- Boiling and Freeze Point
- pH
- Conductivity
- Total Dissolved Solids
- Ion Chromatography
- Chlorides, Formates, Glycolates, Nitrites, Nitrates, Phospates, Sulphates, Molybdates
- Level 2 Test - Full Coolant Analysis
- Level 1 Test Package Plus:
- Reserve Alkalinity
- Wear & Additive Elements
- Iron, Copper, Aluminum, Lead, Tin, Zinc, Calcium, Magnesium, Phosphorous, Boron, Molybdenum, Silicon
Understanding the Analysis Tests
Data Interpretation
- The seminar will culminate with a hands-on data interpretation exercise providing the attendees with a clear understanding of the coolant analysis report and interpretation of the data.
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