Komatsu — 20.6.4 SUPPLEMENTAL COOLANT ADDITIVES

MAINTENANCE NOTE 1 - After draining and replacing coolant, always precharge the cooling system to maintain the SCA concentration between 1.0 and 2.0 units per 3.8 REMARK: When performing service which requires draining the cooling system, discard the coolant. Reusing coolant can introduce contaminates or over concentrated chemicals, resulting in premature failure of cooling system components. NOTE 2 - To precharge cooling systems larger than 114 Install appropriate service filter listed in the above table based on cooling system capacity. Example: 95 gal (360 -15 Units (1) WF-2075 Filter 80 Units The answer represents the additional units required to precharge the cooling system.

Four bottles of powder, part number DCA95, will provide a sufficient amount of SCA units (80) to precharge the example cooling system. 3-18 WA320-3MC DCA4 UNIT GUIDE Fleetguard Part No. DCA4 Units DCA4 Coolant Filter WF-2070 WF-2071 WF-2072 WF-2073 WF-2074 WF-2075 WF-2076 WF-2077 2 4 6 8 12 15 23 0 DCA4 Liquid DCA60L DCA80L 4 (1 pt) 1760 (55 gal) DCA4 Powder DCA95 20 DCA4 Precharge and Service Filters System Capacity Precharge Filter (See NOTE 1) Service Filter (See NOTE 3) Liters Gallons 19-26 30-38 42-57 61-76 80-114 118-190 5-7 8-10 11-15 16-20 21-30 31-50 WF-2072 WF-2073 WF-2074 WF-2075 WF-2076 (See NOTE 2) WF-2070 WF-2071 WF-2071 WF-2071 WF-2072 WF-2073