Troubleshooting
RG268-8135-6
129
01/2019
Coolant temperature is too high.
Coolant is mixed with rust from the
cylinder head or crankshaft hous-
ing.
Change coolant and add corrosion
inhibitor.
V-belt is damaged or very loose
Replace and/or tension it
(page 156).
Thermo switch is defective
Must be replaced. Inform your
KUBOTA dealer.
Coolant level too low
Refill coolant (page 117).
Leaky cooling system components
Check the cooling system for leaks,
see the "Changing the Coolant"
section (page 167).
Dirty radiator
Clean radiator (page 68).
Radiator cap (venting) is defective
Replace it; consult your KUBOTA
dealer if necessary.
Engine oil level is too low
Check the engine oil level, add en-
gine oil if necessary (page 158).
Fuel quality is low
Use fuel according to EN 590 or
ASTM D975.
Coolant lines corroded
Must be replaced. Inform your
KUBOTA dealer.
Constant operation at full capacity.
Operate the machine only with re-
duced loads until the temperature is
normal again.
Exhaust gas colour very black.
Fuel quality is low
Use fuel according to EN 590 or
ASTM D975.
Engine oil level is too high
Check engine oil level, drain engine
oil down to specified level if neces-
sary.
Air filter restricted
Check, clean and replace the air fil-
ter (page 154).
The engine stops suddenly.
Fuel shortage
Check the fuel level; refuel and
bleed if necessary.
Deviation in driving direction of ex-
cavator.
Crawler tension adjusted incorrectly Check and adjust the crawler ten-
sion, if necessary (page 150).
Blocked by stones
Remove the stones.
MALFUNCTION
POSSIBLE CAUSE
REPAIR
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Страница 48: ...46 RG268 8135 6 01 2019 Description of the excavator...
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Страница 139: ...Maintenance RG268 8135 6 137 01 2019...
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