UPPERSTRUCTURE / Fan Motor 35. Add coolant into the radiator. 36. Add refrigerant in the air conditioner. NOTE: As for type and amount of refrigerant, refer to the operator’s manual. 37. Add hydraulic oil into the hydraulic oil tank. Release any pressure in the main pump and fan pump. 38. Start the engine. Keep the engine idling for several minutes in order to circulate the coolant and hydraulic oil. 39. Stop the engine. Check coolant in coolant reservoir. Add coolant to the specification. 40. Check hydraulic oil in the hydraulic oil tank. If hydraulic oil is lack, release any pressure and add hydraulic oil. W2-13-24