103
5.10.2.
Check the condition of the rubber hoses and clamps
Check every 10 hours or once a day.
Check the rubber hose, if it is cracked or hardened due to aging, replace it.
Check the hose clamps for tightness and replace them if they are loose or damaged.
5.10.3.
Clean and inspect the radiator blades
Clean every 500 hours.
Dust on the exterior of the radiator (water tank) will affect the cooling effect and
must be cleaned promptly.
Open the hood and use high-pressure water or compressed air to blow away the dust
or leaves and other debris that block the radiator blades. At the same time , clean the
grid in front of the oil cooler. For machines equipped with air conditioning, also
clean the condenser blades.
WARNING: Always use goggles, dust masks and other protective
masks when using compressed air, high-pressure water or steam to
clean.
ATTENTION: To prevent damage to the radiator, high-pressure water or
compressed air nozzles should be 500mm from the radiator (water tank) surface.
Damaged radiator can cause water leakage or overheating. Check the radiator
daily in dusty sites, regardless of the maintenance interval.
5.10.4.
Coolant replacement
The first change after 50 hours of operation.
Replace every 1000 hours thereafter.
1
）
Remove the radiator (water tank) cover and
unscrew the water valve to allow the coolant to
flow out.
2
）
Clean the cooling circuit, close the drain valve,
fill with special cleaning fluid, then start the
engine, let the engine run at low speed for 10
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