SECTION IV - MAINTENANCE
4.19 1000-HOUR INSPECTION AND MAINTENANCE Thoroughly read and understand the section, “SAFETY PRECAUTIONS” of this MANUAL before operating or servicing the machine. Perform together with daily to 500-hour inspection and maintenance.
CAUTION • The anti-freeze agent is inflammable and detrimental to human body. Keep away from flames and sparks. • Pay attention not to adhere the anti-freeze agent on skin or enter into eye. If it adheres on skin or enters into eye, immediately wash skin or eye with lots of clean water, and ask a doctor to treat it.
A. REPLACEMENT OF COOLANT
WARNING Danger of highly pressurized steam is generated in the radiator. While the coolant is kept at high temperature, do not loosen nor open the radiator cap. • When opening the radiator cap, stop the engine. • Allow sufficient time to cool down the engine before servicing. Use of soft water with less impurities as base coolant. Use the “Long Life Coolant” mixing it in the coolant more than 30% of density to prevent the cooling line from corroding and freezing. The density of “Long Life Coolant” must correspond to the expected lowest ambient temperature. Refer to the section IV “LUBRICANT, FUEL & COOLANT SPECIFICATIONS”. Provide an empty container to receive the coolant drained. 1. Stop the engine. Open the engine guard. Start the servicing with the coolant cooled down enough. 2. Loosen the radiator cap slowly. After ensuring that the pressure has been released, push the cap down and hold it down while turning to remove. 3. Discharge the coolant through the drain hose into the empty container. 4. After discharging, close the drain plug, and fix the hose to the original position. Then fill the cooling line with the mixture of water and cleaning solvent (radiator cleaner). 5. Operate the engine at a speed slightly faster than idling to raise the coolant temperature to 80˚C (176˚F) or more within white range on the thermometer for coolant temperature. Then, operate the engine for approximately 10 minutes. 6. Stop the engine and open the radiator drain cock. Flush the radiator with tap water until the water draining becomes clean.
F14396
F14397
RADIATOR CAP
CAP
DRAIN HOSE F19417
THROTTLE LEVER
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