Komatsu Galeo PC850-8 User Manual

18 PC800, 850-8
SEN00790-02 40 Troubleshooting
Failure code [CA115] Eng Ne and Bkup Speed Sens Error
Action code Failure code
Trouble
Eng Ne and Bkup Speed Sens Error
(Engine controller system)
E10 CA115
Contents of
trouble
• Failure occurred simultaneously in engine Ne speed sensor and engine Bkup speed sensor.
Action of
controller
• None in particular.
Problem that
appears on
machine
• Engine cannot be started. (Engine is stopped.)
• Engine stops (during operations).
Related
information
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Defective Ne speed sen-
sor system
Carry out troubleshooting for failure code [CA689].
2
Defective Bkup speed sen-
sor system
Carry out troubleshooting for failure code [CA778].
3
Defective installation of Ne
speed sensor
Ne speed sensor may be installed defectively. Check it directly.
(Defec-
tive installation of sensor itself, internal defect of flywheel, etc.)
4
Defective installation of
Bkup speed sensor
Bkup speed sensor may be installed defectively. Check it directly.
(Defective installation of sensor itself, internal defect of supply pump,
etc.)
5
Defective connection of
sensor connector (Wrong
connection)
Ne speed sensor and Bkup speed sensor may be connected defectively
(or connected to wrong parts). Check them directly.
6 Defective engine controller
If causes 1 – 5 are not detected, engine controller may be defective. (Since
trouble is in system, troubleshooting cannot be carried out.)

Komatsu Galeo PC850-8 Specifications

General

Brand	Komatsu
Model	Galeo PC850-8
Category	Excavators
Language	English