MAINTENANCE60
BChecking V-belt
To avoid personal injury or death:
A Stop the engine and remove the key before
checking the V-belt.
A Check the V-belt for cracks and proper tension.
(See "Adjusting V-belt Tension" in "REGULAR
CHECKS AND MAINTENANCE WORK"
section.)
BChecking Radiator and Oil Cooler
To avoid personal injury or death:
A Always stop the engine and remove the key
before checking the radiator.
A Wear eye protection when cleaning with
compressed air.
A Replace all water hoses every two years.
A Inspect all water hoses daily.
Have the excavator repaired immediately if any
of the following defects are discovered.
(Such defects may cause burns or injury. They
may also cause engine failure or serious
engine damage.)
A Scratches, cracks or swelling in water
hoses.
A Water leaks at joints or connecting points.
A Missing or damaged water hose protective
sleeve or grommet.
A Loose mounting bolt, damaged bracket.
A Do not touch the water hoses or the heater with
your hand. You may get burned.
A If the window fails to defrost in extreme
conditions or becomes cloudy when
dehumidifying the CAB, remove moisture with
soft cloth.
A Never block all of the air outlets, system
malfunction may occur.
1. Check to see if the fins are clogged with dirt. If so,
remove the dirt using compressed air or a hose.
When cleaning, wear eye protection.
2. Check the rubber hoses for damage and replace if
cracked or old. Check if the hose clamps are tight
enough.
A Radiator and oil cooler fins and ribs must be clean in
order to avoid overheating the engine and to allow free
flow of air through the cooling elements.
A Pressure of compressed air must be under 205 kPa
(2.1 kgf.cm ).
(1) Radiator
(2) Oil cooler
(1) Hose clamp
(2) Rubber hose
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