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5-31
8. WHEN SAFETY SOLENOID DOES NOT OPERATE
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Before disconnecting the connector, always turn the starting switch OFF.
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Before carrying out below procedure, check all the related connectors are properly inserted and
short of fuse No.10.
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After checking, insert the disconnected connectors again immediately unless otherwise specified.
Cause
Remedy
Hydraulic
malfunction
Defective solenoid
Defective switch
(CS-4)
Disconnect in
wiring harness or
poor contact
between
CN-3(12)-CS-4(2)
Disconnect in
wiring harness or
poor contact
between
CN-3(12)-CN-
68(2)
Disconnection in
Check hydraulic
system
Replace
Repair or replace
Repair or replace
(After clean)
Repair or replace
(After clean)
Replace
Check voltage
between CN-68
(1) - CN-68(2)
YES
YES
YES
YES
NO
NO
NO
NO
Safety lever : OFF
Starting switch : ON
Voltage : 10~12.5V
NO
Check operation
of solenoid
Safety lever : ON-OFF
Starting switch : ON
Voltage : 10~12.5V
Disconnect CN-5
Starting switch : ON
Voltage : 10~12.5V
Disconnect CN-5
Starting switch : ON
Voltage : 10~12.5V
Safety state
Check voltage
between CN-68
(2) with chassis
Check voltage
between CS-4
(2) and chassis
Check voltage
between CN-3
(12) and chassis
YES
2
1
12
CN-3
CN-68
CS-4
NO.10
1
2
SAFETY SOLENOID
SAFETY SWITCH
FUSE
11
13
CN-6
R35Z75TS17