SANY LATIN AMERICA
7-68
SY195/205/215/225C9 Crawler Hydraulic Excavator
Troubleshooting
Shop Manual - June 2013
E-3 Power supply of machine cannot be cut off
Trouble
Engine cannot be stopped.
Related information
Engine stalls when start switch it turned to OFF position. There is no time
delay for power cutout.
Possible causes and standard value in normal state
Cause
Standard value in normal state/Remarks on troubleshooting
1
Failure of bat-
tery relay
When engine start switch is operated, if the operation of battery
relay contact is heard, the battery is normal. Turn the start switch
OFF
→
ON
→
OFF.
2
Breakdown of
surge diode
●
Turn engine start switch to OFF position. Keep it at OFF position to per-
form troubleshooting.
Between battery relay wire 20# and wire 21# Resistance
≥
1M
Ω
3
4
5
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