GENERAL COOLANT SPECIFICATIONS Replenishing Coolant Conditioner The amount of replacement inhibitor is determined by the length of the service interval and the cooling system Install a precharge DCA4 filter when the coolant is capacity. Refer to the DCA4 Unit Guide for the selection changed or a significant (more than 50%) coolant loss of the correct filter to replenish the DCA4. occurs. Install a service DCA4 filter as specified in the OPERATION & MAINTENANCE MANUAL When If coolant is added between drain intervals, additional antifreeze is added, add coolant conditioner equal to 1.0 DCA4 will be required. Check the coolant DCA4 unit per 3.8 R (1 US gal) of antifreeze.
concentration level anytime make-up coolant is added to the system. The DCA4 concentration must not fall below Mixing of DCA4 and other supplemental coolant additives 0.13 units per liter or exceed 0.5 units per liter (0.5 units is not recommended because there is currently no test kit per U.S. gallon or exceed 2 units per U.S. gallon). available to measure concentration levels with mixed chemical solutions. DCA4 Unit Guide DCA4 Unit Maintenance Guide Fleetguard Part No. DCA4 Units Use supplemental coolant additives (corrosion inhibitors) to protect the engine cooling system from corrosion. Antifreeze alone does not provide enough corrosion protection for a heavy duty diesel engine.
Supplemental corrosion protection must be supplied through periodic additions of supplemental coolant additives to the coolant. DCA4 Coolant Filter WF-2070 2 WF-2071 4 WF-2072 6 WF-2073 8 WF-2074 12 WF-2075 15 WF-2076 23 WF-2077 0 To protect against corrosion, a new coolant charge must be brought up to 0.26 DCA4 unit per liter (one unit per U.S. gal) of coolant (initial charge). Maintain the correct DCA4 concentration by changing the service coolant filter at each engine oil and filter change interval. DCA4 Liquid DCA60L 4 (1 Pint) DCA80L 1760 (55 USgal) Each time the coolant is drained and replaced, the coolant must be recharged with supplemental coolant additives.
Use the appropriate DCA4 spin-on filter listed in following table. The coolant mixture must be drained and replaced as defined under General. DCA4 Powder DCA95 20 DCA4 Precharge and Service Filters 01-12 System Capacity Precharge Filter (See NOTE 1) Service Filter (See NOTE 3) Liters US Gallons 19 to 26 26 to 38 38 to 57 57 to 76 76 to 114 114 to 190 5 to 7 WF-2072 WF-2070 WF-2071 WF-2071 WF-2071 WF-2072 WF-2073 26 to 38 7 to 10 WF-2073 WF-2071 10 to 15 15 to 20 20 to 30 30 to 50 WF-2074 WF-2075 WF-2076 (See NOTE 2)