Checking the Condition of CoolingSystem ComponentsService Interval: Every 300 hoursCheck the condition of the cooling system for leaks, damage,dirt, and loose hoses, and clamps. Clean, repair, tighten, andreplace the components as necessary.Checking the Concentration of theCoolantService Interval: Every 1,000 hoursTest the concentration of ethylene glycol based antifreeze inthe coolant . Ensure that the coolant is a mixture of 50%ethylene glycol and 50% water.Cleaning the Cooling SystemService Interval: Every 2,000 hours/Every 2 years(whichever comes first)The coolant capacity of the engine and the radiator: 18.5L (19.5 US qt).Draining the Coolant from the SystemImportant: Do not pour coolant onto the ground or intoan unapproved container that can leak.1. Remove the left and right side panels; refer toRemoving the Side Panels (page 46).2. Remove the 2 hex-head bolts that secure the reservoirdoor to the hood and open the door (Figure 103).3. Remove the recovery-tank cap from the tank (Figure103).4. Slip a coolant resistant hose that is 3/8 x 30 inches overthe outlet for the drain valve in the radiator (Figure104).Figure 1041. Drain valve 3. Drain hose (coolantresistant)2. Hose clamp5. Secure the hose to the drain valve with a hose clamp(Figure 104).6. Route the hose down and through the hole in the lowermounting plate for the back fill blade (Figure 105).Figure 1051. Front of the machine 4. Drain hose (coolantresistant)2. Up 5. Drain pan—minimumcapacity of 23 L (6 gallons)3. Hole (lower mountingplate)7. Place a drain pan with a minimum capacity of 23 L (6gallons) under the open end of the drain hose (Figure105).8. Open the drain valve on the radiator, and allow thecoolant to drain completely.66