Auto-Decelerator Does Not Operate - Komatsu ecot3 PC300LC-8 Shop Manual

SEN02632-02
E-2 Auto-decelerator does not operate
Trouble

• Auto-decelerator does not operate.

• Set speed of auto-decelerator is 1,300 rpm. Accordingly, set the fuel control dial to a higher rpm than
Related infor-
this speed. If set speed is under 1,300 rpm, the auto-decelerator will not operate.
mation
• Check all the monitoring indications after starting the engine.
Defective boom RAISE sig-
1
nal
Defective boom LOWER sig-
2
nal
3 Defective arm IN signal
Possible causes
and standard
value in normal
4 Defective arm OUT signal
state
Defective bucket CURL sig-
5
nal
Defective bucket DUMP sig-
6
nal
7 Defective swing signal
10
Cause Standard value in normal state/Remarks on troubleshooting
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-21.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-22.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-23.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-24.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-26.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-27.
Monitoring code
In the case monitoring is not normally indicated, proceed to trouble-
shooting No. E-28.
Monitoring code
Item
01900 Boom RAISE
Item
01900 Boom LOWER
Item
01900 Arm IN
Item
01900 Arm OUT
Item
01901 Bucket CURL
Item
01901 Bucket DUMP
Item
01900 Swing
40 Troubleshooting
1
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
Normal display
Operation of lever:
ON
Lever in neutral: OFF
PC300, 350-8