Komatsu PC130-8 User Manual

40 Troubleshooting SEN04124-00
PC130-8
17
H-15 Travel speed lowers largely during compound operation of work
equipment/swing + travel 1
Trouble • Travel speed lowers largely during compound operation of work equipment/swing + travel.
Related
information
• Conduct the troubleshooting in working mode P.
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Malfunction of pump merge-
divider solenoid valve
a Keep the engine stopped for the preparations, and keep it
running at high idle during the troubleshooting.
Control levers Solenoid output pressure
All levers in NEUTRAL 0 MPa {0 kg/cm
2
}
Position for travel only
(On either or both sides)
2.84 – 3.43 MPa
{29 – 35 kg/cm
2
}
2
Malfunction of pump merge-
divider valve
The pump merge-divider valve may have a malfunction. Check it
directly.
3
Malfunction of work equip-
ment control valve (pressure
compensation valve)
The pressure compensation valve of the work equipment control
valve may have a malfunction. Check it directly.
4
Malfunction of swing control
valve (pressure compensa-
tion valve)
The pressure compensation valve of the swing control valve may
have a malfunction. Check it directly.
5
Malfunction of travel control
valve (pressure compensa-
tion valve)
The pressure compensation valve of the travel control valve may
have a malfunction. Check it directly.

Komatsu PC130-8 Specifications

General

Brand	Komatsu
Model	PC130-8
Category	Excavators
Language	English