Troubleshooting
W9272-8135-1
167
05/2020
9.
Problem with AUX2 /
Thumb system.
If systems other than
AUX2 / Thumb system
function, work can be
continued.
Inform your KUBOTA
dealer immediately.
10.
Charging voltage is too
high.
There may be a problem
with the electric device.
Switch the engine off im-
mediately and check the
battery and the alterna-
tor.
Restart the engine.
If the indicator lights up
again after restarting, im-
mediately contact your
KUBOTAdealer.
11.
Problem with overload
warning system.
If systems other than
overload warning system
function, work can be
continued.
Inform your KUBOTA
dealer immediately.
12.
Auto idle system and ac-
celerator have failed.
Accelerator will not func-
tion, but other functions
are still operational.
Inform your KUBOTA
dealer immediately.
13.
Problem with lever lock
system.
Engine can run, but ma-
chine fails to move.
Inform your KUBOTA
dealer immediately.
14.
Problem with multi-pur-
pose system.
If systems other than
multi-purpose
system
function, work can be
continued.
Inform your KUBOTA
dealer immediately.
15.
Sensor's 5V power sup-
ply has short-circuited.
Majority of systems have
failed.
Inform your KUBOTA
dealer immediately.
16.
Hyd. oil temperature is
too high.
Engine will automatically
reduce engine speed for
cooling.
Do not stop engine until
the hydraulic oil cool
down.
Clean the oil cooler and
check the hydraulic oil,
top up if necessary.
Check the hydraulic
system for leaks; if
necessary, contact your
KUBOTA dealer.
17.
DPF is clogged.
DPF must be repaired.
-
Inform your KUBOTA
dealer immediately.
18.
DPF must be replaced.
-
Inform your KUBOTA
dealer immediately.
19.
Fuel is running out.
-
Refuel the machine.
20.
Water temperature is ris-
ing somewhat higher
than specified.
Check the radiator and
other components for
clogs.
Immediately clean them.
-
No.
indicator
Problem/Error
Preliminary Measure
Solution
Summary of Contents for U50-5
Page 1: ...GB COMPACT EXCAVATOR MODEL U50 5 OPERATING INSTRUCTIONS W9272 8135 1 Original 05 2020...
Page 38: ...36 W9272 8135 1 05 2020 Safety rules...
Page 54: ...52 W9272 8135 1 05 2020 Description of the machine...
Page 74: ...72 W9272 8135 1 05 2020 Assembly and functions...
Page 164: ...162 W9272 8135 1 05 2020 Operation...
Page 222: ...220 W9272 8135 1 05 2020 Maintenance...
Page 224: ...222 W9272 8135 1 05 2020 Safety inspection...
Page 234: ...232 W9272 8135 1 05 2020 Software information...
Page 235: ...Software information W9272 8135 1 233 05 2020...
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