6-2
TROUBLESHOOTING
SYMPTOMS THAT ARE NOT
MALFUNCTIONS
The symptoms listed below are not
malfunctions.
SYMPTOMS THAT ARE NOT MALFUNCTIONS
• The arm retracting speed momentarily
slows down when it reaches an almost
vertical position while the engine is running
at low speed.
• The bucket teeth moving speed
momentarily slows down when it reaches
an almost horizontal position while the
engine is running at low speed.
• The slew motor produces noise at the
beginning and end of the slewing.
• The travel motor produces noise when
stopped suddenly from its high speed
traveling.
• The control valve produces noise if
excessive force is applied to the working
equipment or when it moved to the stroke
end.
• It becomes less easy to operate the
machine when an attachment weighing
more than a standard arm or bucket is
installed.
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