Komatsu PC130-7, Руководство по ремонту, Страница: 176 / 342

20-328
PC130-7
TROUBLESHOOTING
Error code [213] (Disconnection in swing holding brake solenoid)
User code Error code
Trouble
Disconnection in swing holding brake solenoid
(Governor and pump controller system)
E03 213
Contents of
trouble
• When the signal is output to the swing holding brake solenoid circuit, no current flows.
Action of
controller
• None in particular (Since no current flows, the solenoid does not operate).
• If the cause of the failure disappears, the system resets itself.
Problem that
appears on
machine
• The machine cannot swing (The swing holding brake is not released).
Related
information
• The operation state (ON/OFF) of the swing holding brake solenoid can be checked with the monitoring
function. (Code: 023, Center of upper line)
• If the solenoid and wiring harness are normal, the machine can swing by setting the swing holding brake
release switch in the FREE position. (The swing holding brake does not operate when the machine
stops swinging, however.)
• During troubleshooting, keep the swing lock switch in the OFF position and the swing holding brake re-
lease switch in the RELEASE position.
• Since the controller detects disconnection while the solenoid output is turned ON, be sure to turn the
solenoid output ON when checking for reproduction of the failure after repair. (For the method of turn-
ing the solenoid output ON and OFF, see troubleshooting for error code [203].)
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Defective swing holding
brake solenoid (Internal
disconnection)
a
Prepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
V05 (male) Resistance
Between (1) and (2) 20 – 60
z
2
Defective swing lock switch
(Internal disconnection)
a
Prepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
X05 (female) Swing lock switch Resistance
Between (3) and (4)
OFF Max. 1
z
ON Min. 1 M
z
3
Defective assembled-type
diode D01 (Internal discon-
nection)
a
Prepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
D01 (male) Digital circuit tester Continuity
Between (7) and (3) Diode mode There is continuity
4
Disconnection in wiring
harness (Disconnection in
wiring harness or defective
contact in connector)
a
Prepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
Wiring harness between C03 (female) (37) and
D01 (female) (7)
Resistance
Max. 1
z
Wiring harness between D01 (female) (3) and
J02 and X05 (male) (3)
Resistance
Max. 1
z
Wiring harness between X05 (male) (4) and
V05 (female) (1)
Resistance Max. 1
z
Wiring harness between C03 (female) (3), (13),
(23) and V05 (female) (2)
Resistance Max. 1
z
5
Short circuit with power
source in wiring harness
(Contact with 24-V circuit)
a
Prepare with starting switch OFF, then turn starting switch ON and car-
ry out troubleshooting.
Between C03 (female) (37) – D01 (female) (7)
wiring harness and chassis ground
Voltage Max. 1 V
6
Defective governor and
pump controller
a
Prepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch.
C03 (female)
Disconnect D01 and
connect (3) and (7) on
female side.
Resistance
Between (37) and (3),
(13), (23)
20 – 60
z
[213]
(1)