Komatsu PC58UU-3 User Manual

TROUBLESHOOTING H-16, H-17
20-534
PC58UU-3
1
H-16, H-17
a) Hydraulic drift of offset boom to left is large
b) Hydraulic drift of offset boom to right is large
H-16 Hydraulic drift of bucket is large
H-17 Hydraulic drift of offset boom is large
Cause Remedy
1
Is leakage from hydraulic cylin-
der normal?
NO
Defective cylinder
piston packing
Repair or
replace
YES
2
When centralized safety valve
is replaced, is trouble repaired?
NO
YES
Defective centralized
safety valve
Replace
3
If suction valve is replaced with
blind plug, is travel repaired?
NO Defective oiltight-
ness of control valve
spool
Repair or
replace
YES
Defective suction
valve
Repair or
replace
Cause Remedy
1
Is leakage from hydraulic cylin-
der normal?
NO
Defective cylinder
piston packing
Repair or
replace
YES
2
If suction valve is replaced with
blind plug, is travel repaired?
NO Defective oiltight-
ness of control valve
spool
Repair or
replace
YES
Defective suction
valve
Replace
Cause Remedy
1
Is leakage from hydraulic cylin-
der normal?
NO
Defective cylinder
piston packing
Repair or
replace
YES Defective oiltight-
ness of control valve
spool
Repair or
replace

Komatsu PC58UU-3 Specifications

General

Brand	Komatsu
Model	PC58UU-3
Category	Construction Equipment
Language	English