2-79
17. Troubleshooting
The following phenomena do not constitute faults:
• Shaking of the bucket
When the boom is raised immediately after extending the
arm while curling the bucket, the bucket may shake. This
phenomenon is not a fault.
• Discontinuous arm movement
When digging the ground with the arm, the arm may slow
down momentarily at the almost vertical position espe-
cially when the engine speed is low.
This phenomenon is not a fault.
• Shift in upper structure position
When turning the machine sharply as when spin-turning
or pivot-turning, the upper structure may slightly shift out
of position.
This phenomenon is not a fault.
• Thermal shock of the travel motor
If, in cold weather, the temperature of the hydraulic oil el-
evates after start-up and becomes 140°F (60°C) higher
than the outside temperature by relief operation without
traveling, sometimes the machine cannot pivot-turn be-
cause of thermal shock. This phenomenon is not a fault.
• The boom swing cylinder is extended when digging
The boom swing cylinder may become extended in
some digging situations or postures. This phenomenon
is not a fault.
• Time lag in travel speed change response
At low engine speed, a time lag in response may occur
when the travel speed is changed from high-speed to
low-speed. This phenomenon is not a fault.
• Looseness in the track frame and the moving parts for
changing the track gauge
When the track gauge change cylinders are not extend-
ed or retracted to their stroke end, the stoppers are not
securely applied so that the moving parts for changing
the track gauge may be loose in some working postures.
This is not a fault.
17-1. Phenomena that do not constitute faults
020338-00X
Slow-down is remarkable over this range
000514-00E
Summary of Contents for Z17 GEN:2
Page 28: ...MEMO 1 16 Courtesy of Machine Market...
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Page 41: ...2 1 OPERATION Courtesy of Machine Market...
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Page 129: ...3 1 MAINTENANCE Courtesy of Machine Market...
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Page 189: ...4 1 SPECIFICATIONS AND DIMENSIONAL DIAGRAMS Courtesy of Machine Market...
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Page 193: ...5 1 OPTIONAL PARTS AND ATTACHMENTS Courtesy of Machine Market...
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Page 197: ...6 1 NOTES Courtesy of Machine Market...
Page 199: ...28 Maintenance Log 6 3 Date Machine hours Service performed Courtesy of Machine Market...
Page 200: ...28 Maintenance Log 6 4 Date Machine hours Service performed Courtesy of Machine Market...
Page 201: ...28 Maintenance Log 6 5 Date Machine hours Service performed Courtesy of Machine Market...
Page 202: ...6 6 29 Notes Notes Courtesy of Machine Market...
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