SANY LATIN AMERICA
7-70
SY195/205/215/225C9 Crawler Hydraulic Excavator
Troubleshooting
Shop Manual - June 2013
E-4 Auto idle not functioning
Trouble
Auto idle speed do not work
Related information
Engine speed do not decrease wen the mode is auto idle speed and grip keeps
still in "NEUTRAL" position
Possible causes and standard value in normal state
Cause
Standard value in normal state/Remarks on troubleshooting
1
Error of boom-
raise signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
2
Error of boom-
lower signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
3
Error of arm-in
signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
4
Error of arm-out
signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
5
Error of bucket-
curl signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
6
Error of Bucket-
dump signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
7
Error of swing
signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
8
Error of travel
signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
9
Error of attach-
ment signal
●
Turn engine start switch to OFF position. Start the engine and keep it
running to perform troubleshooting.
Levers in NEUTRAL, pressure signal transmitted
Pressure
0 KG
Lever in operation, pressure signal transmitted
0~39 KG
10
Failure of con-
troller
No troubleshooting can be done for it is internal failure. (If it is not caused by
one of the factors listed above, it should be the failure of controller.)
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