9. WHEN SAFETY SOLENOID DOES NOT OPERATE 9. WHEN SAFETY SOLENOID DOES NOT OPERATE · Before disconnecting the connector, always turn the starting switch OFF. · Before carrying out below procedure, check all the related connectors are properly inserted and short of fuse No.17. · After checking, insert the disconnected connectors again immediately unless otherwise specified. FUSE CN-51 5-31 YES YES Check operation of solenoid NO Safety lever : ON-OFF YES Check voltage YES between CS-4 Check voltage (3) and chassis between CN-68 Check voltage Starting switch : ON NO (1) - CN-68 (2) YES between CN-4 Voltage : 10~12.5V Starting switch : ON (3) and chassis Disconnect CN-5 Voltage :
10~12.5V Safety state Starting switch : ON Voltage : 10~12.5V Disconnect CN-5 Check voltage between CN-68 NO NO (2) with chassis Safety lever : OFF Starting switch : ON Voltage : 10~12.5V NO Cause Remedy Hydraulic malfunction Defective solenoid Defective switch (CS-4) Disconnect in wiring harness or poor contact between CN-4 (3)-CS-4 (3) Disconnect in wiring harness or poor contact between CN-4 (3)-CN-68 (2) Disconnection in fuse Check hydraulic system Replace Repair or replace Repair or replace (after clean) Repair or replace (after clean) Replace NO.17 SAFETY SWITCH 2 3 1 1 1 2 3 2 1 3 MCU CN-68 CS-4 SAFETY SOLENOID CN-4 48 2 3 1 1 2 3 1 2