TESTING AND ADJUSTING STANDARD VALUE TABLE FOR ELECTRICAL PARTS 20-12 PC400, 450-6 Sys- tem Name of component Connector No. Inspection method Judgment table Measurement conditions Control system Pump pressure sensor C07 (male) (rear) C08 (male) (front) Measure voltage If the condition is as shown in the table below, it is normal Between (2) – (1) 18 – 28 V All levers at neutral 0.5 – 1.5 V Between (3) – (1) At arm IN relief 3.1 – 4.5 V 1) Start engine. 2) Turn fuel control dial to MAX position. 3) Insert T – adapter. Swing lock switch X05 (male) Measure resistance If the condition is as shown in the table below, it is normal Between (1) – (2) Min.
1 MΩ When switch is OFF Between (3) – (4) Max. 1 Ω 1) Turn starting switch OFF. 2) Disconnect connector X05. TVC solenoid C04 (male) C13 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 10 – 22 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn TVC prolix switch OFF. 2) Turn starting switch OFF. 3) Disconnect connectors C04, C13. Swing lock solenoid V04 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector V04.
Travel speed solenoid V06 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector V06. Active boom solenoid V02 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector V02. Merge/divider solenoid V03 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min.
1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector V03. Machine push-up solenoid (When engine throttle, pump controller does not carry out control) V05 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector V05. Between (2) – (1) 18 – 28 V Between (3) – (1) All levers at neutral 0.5 – 1.5 V At arm IN relief 3.1 – 4.5 V Between (1) – (2) When switch is OFF Min. 1 MΩ Between (3) – (4) Max. 1 Ω Between (1) – (2) 10 – 22 Ω Between(1), (2) – chassis Min. 1 MΩ Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min.
1 MΩ Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ Between (1) – (2) 20 – 60 Ω Between(1), (2) – chassis Min. 1 MΩ